Investment Risks |
Feb. 09, 2026 |
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| Defiance AdvMicrDev LightningSpread(TM) Income ETF | AMD Risks [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | AMD Risks. The Fund invests in derivative instruments that are based on the value of AMD. This subjects the Fund to certain of the same risks as if it owned shares of AMD, even though it does not. By virtue of the Fund’s investments in derivative instruments that are based on the value of AMD, the Fund may also be subject to the following risks:
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| Defiance AdvMicrDev LightningSpread(TM) Income ETF | Indirect Investment in AMD Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Indirect Investment in AMD Risk. AMD is not affiliated with the Trust, the Fund, the Adviser, or their respective affiliates and is not involved with this offering in any way and has no obligation to consider your Shares in taking any corporate actions that might affect the value of Shares. Investors in the Fund will not have voting rights and will not be able to influence the management of AMD but will be exposed to the performance of AMD (the underlying stock). Investors in the Fund will not have rights to receive dividends or other distributions or any other rights with respect to the underlying stock but will be subject to declines in the performance of the underlying stock.
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| Defiance AdvMicrDev LightningSpread(TM) Income ETF | AMD Trading Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | AMD Trading Risk. The trading price of AMD may be highly volatile and could continue to be subject to wide fluctuations in response to various factors. The stock market in general, and the market for technology companies in particular, has experienced extreme price and volume fluctuations that have often been unrelated or disproportionate to the operating performance of those companies. In particular, a large proportion of AMD may be traded by short sellers which may put pressure on the supply and demand for the common stock of AMD, further influencing volatility in its market price. Public perception and other factors outside of the control of AMD may additionally impact AMD’s stock price due to AMD garnering a disproportionate degree of public attention, regardless of actual operating performance. In addition, in the past, following periods of volatility in the overall market and the market price of a particular company’s securities, securities class action litigation has often been instituted against companies such as these. Moreover, stockholder litigation like this has been filed against AMD in the past. While AMD continues to defend such actions, any judgment against AMD, or any future stockholder litigation could result in substantial costs and a diversion of the management of AMD’s attention and resources. If AMD trading is halted, trading in Shares of the AMD Fund may be impacted, either temporarily or indefinitely.
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| Defiance AdvMicrDev LightningSpread(TM) Income ETF | AMD Performance Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | AMD Performance Risk. AMD may fail to meet its publicly announced guidelines or other expectations about its business, which could cause the price of AMD to decline. AMD provides guidance regarding its expected financial and business performance, such as projections regarding sales and production, as well as anticipated future revenues, gross margins, profitability and cash flows. Correctly identifying key factors affecting business conditions and predicting future events is inherently an uncertain process, and the guidance AMD provides may not ultimately be accurate and has in the past been inaccurate in certain respects, such as the timing of new product manufacturing ramps. The guidance is based on certain assumptions such as those relating to global and local economic conditions, anticipated production and sales volumes (which generally are not linear throughout a given period), average sales prices, supplier and commodity costs, and planned cost reductions. If AMD’s guidance is not accurate or varies from actual results due to its inability to meet the assumptions or the impact on its financial performance that could occur as a result of various risks and uncertainties, the market value of common stock issued by AMD could decline significantly.
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| Defiance AdvMicrDev LightningSpread(TM) Income ETF | Semiconductor Company Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Semiconductor Company Risk. Competitive pressures may have a significant effect on the financial condition of semiconductor companies and, as product cycles shorten and manufacturing capacity increases, these companies may become increasingly subject to aggressive pricing, which hampers profitability. Reduced demand for end-user products, under-utilization of manufacturing capacity, and other factors could adversely impact the operating results of companies in the semiconductor sector. Semiconductor companies typically face high capital costs and may be heavily dependent on intellectual property rights. The semiconductor sector is highly cyclical, which may cause the operating results of many semiconductor companies to vary significantly. The stock prices of companies in the semiconductor sector have been and likely will continue to be extremely volatile.
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| Defiance AdvMicrDev LightningSpread(TM) Income ETF | Competition Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Competition Risk. The markets in which AMD’s products are sold are highly competitive and rapidly evolving. AMD expects that competition will continue to be intense due to rapid technological changes, new and evolving industry standards, changing customer preferences and requirements, and frequent introductions by competitors of products that may provide better performance/experience or that may include additional features that render AMD’s products comparatively less competitive. In addition, Intel Corporation’s dominance of the microprocessor market and its aggressive business practices may limit AMD’s ability to compete effectively on a level playing field. In addition, NVIDIA Corporation’s Data Center GPU market share position, significant financial resources, introduction of competitive new products and proprietary software ecosystem have enabled it to market and price its products in a manner to encourage the selection of NVIDIA-based systems and to influence customers who do business with AMD.
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| Defiance AdvMicrDev LightningSpread(TM) Income ETF | Derivatives Risks [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Derivatives Risks. Derivatives are financial instruments that derive value from the underlying reference asset or assets, such as stocks, bonds, or funds (including ETFs), interest rates or indexes. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other ordinary investments, including risk related to the market, imperfect correlation with underlying investments or the Fund’s other portfolio holdings, higher price volatility, lack of availability, counterparty risk, liquidity, valuation and legal restrictions. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with ordinary portfolio securities transactions. The use of derivatives may result in larger losses or smaller gains than directly investing in securities. When the Fund uses derivatives, there may be an imperfect correlation between the value of the underlying reference asset and the derivative, which may prevent the Fund from achieving its investment objective. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of those amounts initially invested. In addition, the Fund’s investments in derivatives are subject to the following risks:
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| Defiance AdvMicrDev LightningSpread(TM) Income ETF | Options Contracts [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] |
Although the Fund may use options to provide synthetic exposure to the Underlying Security, option prices may not perfectly replicate the rate of change of the Underlying Security prior to expiration, resulting in potential tracking differences. Similarly, the premiums received from selling put spreads are influenced by market volatility and the specific strike prices selected, which can vary based on market conditions.
The Fund may experience downside risk from certain options positions, including the potential for purchased options to expire worthless, resulting in the loss of premiums paid. Writing (selling) options also exposes the Fund to risk of loss, which may exceed the premiums received. For example, selling put options exposes the Fund to the risk that the price of the Underlying Security declines below the strike price, potentially resulting in substantial losses. Selling put spreads limits these losses to the difference between the strike prices of the sold and purchased puts, less the net premium received, but does not eliminate risk.
The Fund may encounter challenges in managing written options positions, particularly in volatile or illiquid markets, where closing or adjusting positions may be difficult or costly. Additionally, the process of rolling options positions, replacing expiring options with new contracts to maintain exposure, can involve significant transaction costs and expose the Fund to additional risks, such as adverse price movements during the roll period or reduced liquidity in the desired contracts. The Fund may also face margin requirements associated with written options, which could require the Fund to liquidate other assets to meet these obligations, potentially at unfavorable prices. Collectively, these risks may result in losses or reduced investment efficiency for the Fund.
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| Defiance AdvMicrDev LightningSpread(TM) Income ETF | Swap Agreements [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] |
The swap agreements in which the Fund invests are generally traded in the over-the-counter market, which generally has less transparency than exchange-traded derivative instruments. In a standard swap transaction, two parties agree to exchange the return (or differentials in rates of return) earned or realized on particular predetermined reference assets, securities, or instruments. The gross return to be exchanged or “swapped” between the parties is calculated based on a notional amount or the return on or change in value of a particular dollar amount invested in the reference asset.
If the Underlying Security experiences a significant price movement that causes a material change in the Fund’s net assets, the terms of a swap agreement between the Fund and its counterparty may permit the counterparty to close out the swap transaction with the Fund. In that event, the Fund may be unable to enter into another swap agreement or invest in other derivatives to maintain exposure consistent with its investment objective. This may temporarily reduce the Fund’s ability to maintain its intended level of synthetic exposure until replacement transactions can be established.
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| Defiance AdvMicrDev LightningSpread(TM) Income ETF | Counterparty Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Counterparty Risk. The Fund is subject to counterparty risk by virtue of its investments in options contracts. Transactions in some types of derivatives, including options, are required to be centrally cleared (“cleared derivatives”). In a transaction involving cleared derivatives, the Fund’s counterparty is a clearing house rather than a bank or broker. Since the Fund is not a member of clearing houses and only members of a clearing house (“clearing members”) can participate directly in the clearing house, the Fund will hold cleared derivatives through accounts at clearing members. In cleared derivatives positions, the Fund will make payments (including margin payments) to and receive payments from a clearing house through their accounts at clearing members. Customer funds held at a clearing organization in connection with any options contracts are held in a commingled omnibus account and are not identified to the name of the clearing member’s individual customers. As a result, assets deposited by the Fund with any clearing member as margin for options may, in certain circumstances, be used to satisfy losses of other clients of the Fund’s clearing member. In addition, although clearing members guarantee performance of their clients’ obligations to the clearing house, there is a risk that the assets of the Fund might not be fully protected in the event of the clearing member’s bankruptcy, as the Fund would be limited to recovering only a pro rata share of all available funds segregated on behalf of the clearing member’s customers for the relevant account class. The Fund is also subject to the risk that a limited number of clearing members are willing to transact on the Fund’s behalf, which heightens the risks associated with a clearing member’s default. This risk is greater for the Fund as it seeks to hold options contracts on a single security, and not a broader range of options contracts, which may limit the number of clearing members that are willing to transact on the Fund’s behalf. If a clearing member defaults the Fund could lose some or all of the benefits of a transaction entered into by the Fund with the clearing member. If the Fund cannot find a clearing member to transact with on the Fund’s behalf, the Fund may be unable to effectively implement its investment strategy.
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| Defiance AdvMicrDev LightningSpread(TM) Income ETF | Distribution Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Distribution Risk. As part of the Fund’s investment objective, the Fund seeks to provide current income twice weekly. There is no assurance that the Fund will make more than one, or any, distribution in a given week. If the Fund does make distributions, the amounts of such distributions will likely vary greatly from one distribution to the next.
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| Defiance AdvMicrDev LightningSpread(TM) Income ETF | NAV Erosion Risk Due to Distributions [Member] | |||||||||||||||||||||||||
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| Defiance AdvMicrDev LightningSpread(TM) Income ETF | Equity Market Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Equity Market Risk. Common stocks are generally exposed to greater risk than other types of securities, such as preferred stock and debt obligations, because common stockholders generally have inferior rights to receive payment from specific issuers. The equity securities held in the Fund’s portfolio may experience sudden, unpredictable drops in value or long periods of decline in value. This may occur because of factors that affect securities markets generally or factors affecting specific issuers, industries, or sectors in which the Fund invests. Common stocks, such as those held by the Fund, are generally exposed to greater risk than other types of securities, such as preferred stock and debt obligations, because common stockholders generally have inferior rights to receive payment from issuers.
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| Defiance AdvMicrDev LightningSpread(TM) Income ETF | Concentration Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Concentration Risk. The Fund’s investment exposure will be concentrated in (or substantially exposed to) the same industry or group of industries assigned to the Underlying Security. As a result, the Fund may be more susceptible to loss due to adverse occurrences that affect the price of such industries more than the market as a whole.
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| Defiance AdvMicrDev LightningSpread(TM) Income ETF | ETF Risks [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | ETF Risks
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| Defiance AdvMicrDev LightningSpread(TM) Income ETF | Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that are authorized to purchase and redeem Shares directly from the Fund (known as “Authorized Participants” or “APs”). In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services; or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
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| Defiance AdvMicrDev LightningSpread(TM) Income ETF | Cash Redemption Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Cash Redemption Risk. The Fund’s investment strategy may require it to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. For example, the Fund may not be able to redeem in-kind certain securities held by the Fund (e.g., derivative instruments). In such a case, the Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used. By paying out higher annual capital gain distributions, investors may be subjected to increased capital gains taxes. Additionally, there may be brokerage costs or taxable gains or losses that may be imposed on the Fund in connection with a cash redemption that may not have occurred if the Fund had made a redemption in-kind. These costs could decrease the value of the Fund to the extent they are not offset by a transaction fee payable by an AP.
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| Defiance AdvMicrDev LightningSpread(TM) Income ETF | Costs of Buying or Selling Shares [Member] | |||||||||||||||||||||||||
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| Defiance AdvMicrDev LightningSpread(TM) Income ETF | Shares May Trade at Prices Other Than NAV [Member] | |||||||||||||||||||||||||
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| Defiance AdvMicrDev LightningSpread(TM) Income ETF | Trading [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Trading. Although Shares are listed on a national securities exchange, such as Cboe BZX Exchange, Inc. (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that an active trading market for the Shares will develop or be maintained or that the Shares will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Shares. Shares trade on the Exchange at market price that may be below, at or above the Fund’s NAV. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable. In addition, trading in Shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange “circuit breaker” rules. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged. As a result, the Fund could be adversely affected and be unable to implement its investment strategies in the event of an unscheduled closing.
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| Defiance AdvMicrDev LightningSpread(TM) Income ETF | Economic and Market Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Economic and Market Risk. Economies and financial markets throughout the world are becoming increasingly interconnected, which increases the likelihood that events or conditions in one country or region will adversely impact markets or issuers in other countries or regions. Securities in the Fund’s portfolio may underperform in comparison to securities in the general financial markets, a particular financial market, or other asset classes, due to a number of factors, including inflation (or expectations for inflation), deflation (or expectations for deflation), interest rates, global demand for particular products or resources, market instability, financial system instability, debt crises and downgrades, embargoes, tariffs, sanctions and other trade barriers, regulatory events, other governmental trade or market control programs and related geopolitical events. In addition, the value of the Fund’s investments may be negatively affected by the occurrence of global events such as war, terrorism, environmental disasters, natural disasters or events, country instability, and infectious disease epidemics or pandemics. The imposition by the U.S. of tariffs on goods imported from foreign countries and reciprocal tariffs levied on U.S. goods by those countries also may lead to volatility and instability in domestic and foreign markets.
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| Defiance AdvMicrDev LightningSpread(TM) Income ETF | High Portfolio Turnover Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | High Portfolio Turnover Risk. The Fund may actively and frequently trade all or a significant portion of the Fund’s holdings. A high portfolio turnover rate increases transaction costs, which may increase the Fund’s expenses. Frequent trading may also cause adverse tax consequences for investors in the Fund due to an increase in short-term capital gains.
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| Defiance AdvMicrDev LightningSpread(TM) Income ETF | Inflation Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Inflation Risk. Inflation risk is the risk that the value of assets or income from investments will be less in the future as inflation decreases the value of money. As inflation increases, the present value of the Fund’s assets and distributions, if any, may decline.
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| Defiance AdvMicrDev LightningSpread(TM) Income ETF | Market Capitalization Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Market Capitalization Risk
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| Defiance AdvMicrDev LightningSpread(TM) Income ETF | Large-Capitalization Investing [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Large-Capitalization Investing. The securities of large-capitalization companies may be relatively mature compared to smaller companies and therefore subject to slower growth during times of economic expansion. Large-capitalization companies may also be unable to respond quickly to new competitive challenges, such as changes in technology and consumer tastes.
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| Defiance AdvMicrDev LightningSpread(TM) Income ETF | Money Market Instrument Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Money Market Instrument Risk. The Fund may use a variety of money market instruments for cash management purposes, including money market funds, depositary accounts and repurchase agreements. Repurchase agreements are contracts in which a seller of securities agrees to buy the securities back at a specified time and price. Repurchase agreements may be subject to market and credit risk related to the collateral securing the repurchase agreement. Money market instruments, including money market funds, may lose money through fees or other means.
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| Defiance AdvMicrDev LightningSpread(TM) Income ETF | New Fund Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | New Fund Risk. The Fund is a recently organized management investment company with no operating history. As a result, prospective investors do not have a track record or history on which to base their investment decisions.
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| Defiance AdvMicrDev LightningSpread(TM) Income ETF | Operational Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Operational Risk. The Fund is subject to risks arising from various operational factors, including, but not limited to, human error, processing and communication errors, errors of the Fund’s service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund relies on third-parties for a range of services, including custody. Any delay or failure relating to engaging or maintaining such service providers may affect the Fund’s ability to meet its investment objective. Although the Fund and Adviser seek to reduce these operational risks through controls and procedures, there is no way to completely protect against such risks.
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| Defiance AdvMicrDev LightningSpread(TM) Income ETF | Tax Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Tax Risk. The Fund intends to elect and to qualify each year to be treated as a regulated investment company (a “RIC”) under Subchapter M of the Internal Revenue Code of 1986, as amended (“Code”). As a RIC, the Fund will not be subject to U.S. federal income tax on the portion of its net investment income and net capital gain that it distributes to shareholders, provided that it satisfies certain requirements of the Code. If the Fund does not qualify as a RIC for any taxable year and certain relief provisions are not available, the Fund’s taxable income will be subject to tax at the Fund level and to a further tax at the shareholder level when such income is distributed. To comply with the asset diversification test applicable to a RIC, the Fund will attempt to ensure that the value of swap contracts and options on shares of a single issuer does not exceed 25% of the Fund’s value at the close of any quarter. If the value of swap contracts and options on shares of a single issuer were to exceed 25% of the Fund’s total assets at the end of a tax quarter, the Fund, generally, has a grace period to cure such lack of compliance. If the Fund fails to timely cure, it may no longer be eligible to be treated as a RIC.
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| Defiance AdvMicrDev LightningSpread(TM) Income ETF | U.S. Government and U.S. Agency Obligations Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | U.S. Government and U.S. Agency Obligations Risk. The Fund may invest in securities issued by the U.S. government or its agencies or instrumentalities. U.S. Government obligations include securities issued or guaranteed as to principal and interest by the U.S. Government, its agencies or instrumentalities, such as the U.S. Treasury. Payment of principal and interest on U.S. Government obligations may be backed by the full faith and credit of the United States or may be backed solely by the issuing or guaranteeing agency or instrumentality itself. In the latter case, the investor must look principally to the agency or instrumentality issuing or guaranteeing the obligation for ultimate repayment, which agency or instrumentality may be privately owned. There can be no assurance that the U.S. Government would provide financial support to its agencies or instrumentalities (including government-sponsored enterprises) where it is not obligated to do so.
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| Defiance AdvMicrDev LightningSpread(TM) Income ETF | Risk Lose Money [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | The Fund may not achieve its investment objective and there is a risk that you could lose all of your money invested in the Fund. | ||||||||||||||||||||||||
| Defiance AdvMicrDev LightningSpread(TM) Income ETF | Risk Nondiversified Status [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Non-Diversification Risk. Because the Fund is “non-diversified,” it may invest a greater percentage of its assets in the securities of a single issuer or a smaller number of issuers than if it was a diversified fund. As a result, a decline in the value of an investment in a single issuer or a smaller number of issuers could cause the Fund’s overall value to decline to a greater degree than if the Fund held a more diversified portfolio.
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| Defiance AAPL LightningSpread(TM) Income ETF | Derivatives Risks [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Derivatives Risks. Derivatives are financial instruments that derive value from the underlying reference asset or assets, such as stocks, bonds, or funds (including ETFs), interest rates or indexes. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other ordinary investments, including risk related to the market, imperfect correlation with underlying investments or the Fund’s other portfolio holdings, higher price volatility, lack of availability, counterparty risk, liquidity, valuation and legal restrictions. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with ordinary portfolio securities transactions. The use of derivatives may result in larger losses or smaller gains than directly investing in securities. When the Fund uses derivatives, there may be an imperfect correlation between the value of the underlying reference asset and the derivative, which may prevent the Fund from achieving its investment objective. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of those amounts initially invested. In addition, the Fund’s investments in derivatives are subject to the following risks:
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| Defiance AAPL LightningSpread(TM) Income ETF | Options Contracts [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] |
Although the Fund may use options to provide synthetic exposure to the Underlying Security, option prices may not perfectly replicate the rate of change of the Underlying Security prior to expiration, resulting in potential tracking differences. Similarly, the premiums received from selling put spreads are influenced by market volatility and the specific strike prices selected, which can vary based on market conditions.
The Fund may experience downside risk from certain options positions, including the potential for purchased options to expire worthless, resulting in the loss of premiums paid. Writing (selling) options also exposes the Fund to risk of loss, which may exceed the premiums received. For example, selling put options exposes the Fund to the risk that the price of the Underlying Security declines below the strike price, potentially resulting in substantial losses. Selling put spreads limits these losses to the difference between the strike prices of the sold and purchased puts, less the net premium received, but does not eliminate risk.
The Fund may encounter challenges in managing written options positions, particularly in volatile or illiquid markets, where closing or adjusting positions may be difficult or costly. Additionally, the process of rolling options positions, replacing expiring options with new contracts to maintain exposure, can involve significant transaction costs and expose the Fund to additional risks, such as adverse price movements during the roll period or reduced liquidity in the desired contracts. The Fund may also face margin requirements associated with written options, which could require the Fund to liquidate other assets to meet these obligations, potentially at unfavorable prices. Collectively, these risks may result in losses or reduced investment efficiency for the Fund.
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| Defiance AAPL LightningSpread(TM) Income ETF | Swap Agreements [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] |
The swap agreements in which the Fund invests are generally traded in the over-the-counter market, which generally has less transparency than exchange-traded derivative instruments. In a standard swap transaction, two parties agree to exchange the return (or differentials in rates of return) earned or realized on particular predetermined reference assets, securities, or instruments. The gross return to be exchanged or “swapped” between the parties is calculated based on a notional amount or the return on or change in value of a particular dollar amount invested in the reference asset.
If the Underlying Security experiences a significant price movement that causes a material change in the Fund’s net assets, the terms of a swap agreement between the Fund and its counterparty may permit the counterparty to close out the swap transaction with the Fund. In that event, the Fund may be unable to enter into another swap agreement or invest in other derivatives to maintain exposure consistent with its investment objective. This may temporarily reduce the Fund’s ability to maintain its intended level of synthetic exposure until replacement transactions can be established.
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| Defiance AAPL LightningSpread(TM) Income ETF | Counterparty Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Counterparty Risk. The Fund is subject to counterparty risk by virtue of its investments in options contracts. Transactions in some types of derivatives, including options, are required to be centrally cleared (“cleared derivatives”). In a transaction involving cleared derivatives, the Fund’s counterparty is a clearing house rather than a bank or broker. Since the Fund is not a member of clearing houses and only members of a clearing house (“clearing members”) can participate directly in the clearing house, the Fund will hold cleared derivatives through accounts at clearing members. In cleared derivatives positions, the Fund will make payments (including margin payments) to and receive payments from a clearing house through their accounts at clearing members. Customer funds held at a clearing organization in connection with any options contracts are held in a commingled omnibus account and are not identified to the name of the clearing member’s individual customers. As a result, assets deposited by the Fund with any clearing member as margin for options may, in certain circumstances, be used to satisfy losses of other clients of the Fund’s clearing member. In addition, although clearing members guarantee performance of their clients’ obligations to the clearing house, there is a risk that the assets of the Fund might not be fully protected in the event of the clearing member’s bankruptcy, as the Fund would be limited to recovering only a pro rata share of all available funds segregated on behalf of the clearing member’s customers for the relevant account class. The Fund is also subject to the risk that a limited number of clearing members are willing to transact on the Fund’s behalf, which heightens the risks associated with a clearing member’s default. This risk is greater for the Fund as it seeks to hold options contracts on a single security, and not a broader range of options contracts, which may limit the number of clearing members that are willing to transact on the Fund’s behalf. If a clearing member defaults the Fund could lose some or all of the benefits of a transaction entered into by the Fund with the clearing member. If the Fund cannot find a clearing member to transact with on the Fund’s behalf, the Fund may be unable to effectively implement its investment strategy.
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| Defiance AAPL LightningSpread(TM) Income ETF | Distribution Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Distribution Risk. As part of the Fund’s investment objective, the Fund seeks to provide current income twice weekly. There is no assurance that the Fund will make more than one, or any, distribution in a given week. If the Fund does make distributions, the amounts of such distributions will likely vary greatly from one distribution to the next.
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| Defiance AAPL LightningSpread(TM) Income ETF | NAV Erosion Risk Due to Distributions [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
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| Defiance AAPL LightningSpread(TM) Income ETF | Equity Market Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Equity Market Risk. Common stocks are generally exposed to greater risk than other types of securities, such as preferred stock and debt obligations, because common stockholders generally have inferior rights to receive payment from specific issuers. The equity securities held in the Fund’s portfolio may experience sudden, unpredictable drops in value or long periods of decline in value. This may occur because of factors that affect securities markets generally or factors affecting specific issuers, industries, or sectors in which the Fund invests. Common stocks, such as those held by the Fund, are generally exposed to greater risk than other types of securities, such as preferred stock and debt obligations, because common stockholders generally have inferior rights to receive payment from issuers.
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| Defiance AAPL LightningSpread(TM) Income ETF | Concentration Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Concentration Risk. The Fund’s investment exposure will be concentrated in (or substantially exposed to) the same industry or group of industries assigned to the Underlying Security. As a result, the Fund may be more susceptible to loss due to adverse occurrences that affect the price of such industries more than the market as a whole.
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| Defiance AAPL LightningSpread(TM) Income ETF | ETF Risks [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | ETF Risks
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| Defiance AAPL LightningSpread(TM) Income ETF | Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that are authorized to purchase and redeem Shares directly from the Fund (known as “Authorized Participants” or “APs”). In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services; or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
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| Defiance AAPL LightningSpread(TM) Income ETF | Cash Redemption Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Cash Redemption Risk. The Fund’s investment strategy may require it to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. For example, the Fund may not be able to redeem in-kind certain securities held by the Fund (e.g., derivative instruments). In such a case, the Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used. By paying out higher annual capital gain distributions, investors may be subjected to increased capital gains taxes. Additionally, there may be brokerage costs or taxable gains or losses that may be imposed on the Fund in connection with a cash redemption that may not have occurred if the Fund had made a redemption in-kind. These costs could decrease the value of the Fund to the extent they are not offset by a transaction fee payable by an AP.
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| Defiance AAPL LightningSpread(TM) Income ETF | Costs of Buying or Selling Shares [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
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| Defiance AAPL LightningSpread(TM) Income ETF | Shares May Trade at Prices Other Than NAV [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
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| Defiance AAPL LightningSpread(TM) Income ETF | Trading [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Trading. Although Shares are listed on a national securities exchange, such as Cboe BZX Exchange, Inc. (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that an active trading market for the Shares will develop or be maintained or that the Shares will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Shares. Shares trade on the Exchange at market price that may be below, at or above the Fund’s NAV. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable. In addition, trading in Shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange “circuit breaker” rules. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged. As a result, the Fund could be adversely affected and be unable to implement its investment strategies in the event of an unscheduled closing.
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| Defiance AAPL LightningSpread(TM) Income ETF | Economic and Market Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Economic and Market Risk. Economies and financial markets throughout the world are becoming increasingly interconnected, which increases the likelihood that events or conditions in one country or region will adversely impact markets or issuers in other countries or regions. Securities in the Fund’s portfolio may underperform in comparison to securities in the general financial markets, a particular financial market, or other asset classes, due to a number of factors, including inflation (or expectations for inflation), deflation (or expectations for deflation), interest rates, global demand for particular products or resources, market instability, financial system instability, debt crises and downgrades, embargoes, tariffs, sanctions and other trade barriers, regulatory events, other governmental trade or market control programs and related geopolitical events. In addition, the value of the Fund’s investments may be negatively affected by the occurrence of global events such as war, terrorism, environmental disasters, natural disasters or events, country instability, and infectious disease epidemics or pandemics. The imposition by the U.S. of tariffs on goods imported from foreign countries and reciprocal tariffs levied on U.S. goods by those countries also may lead to volatility and instability in domestic and foreign markets.
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| Defiance AAPL LightningSpread(TM) Income ETF | High Portfolio Turnover Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | High Portfolio Turnover Risk. The Fund may actively and frequently trade all or a significant portion of the Fund’s holdings. A high portfolio turnover rate increases transaction costs, which may increase the Fund’s expenses. Frequent trading may also cause adverse tax consequences for investors in the Fund due to an increase in short-term capital gains.
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| Defiance AAPL LightningSpread(TM) Income ETF | Inflation Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Inflation Risk. Inflation risk is the risk that the value of assets or income from investments will be less in the future as inflation decreases the value of money. As inflation increases, the present value of the Fund’s assets and distributions, if any, may decline.
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| Defiance AAPL LightningSpread(TM) Income ETF | Market Capitalization Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Market Capitalization Risk
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| Defiance AAPL LightningSpread(TM) Income ETF | Large-Capitalization Investing [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Large-Capitalization Investing. The securities of large-capitalization companies may be relatively mature compared to smaller companies and therefore subject to slower growth during times of economic expansion. Large-capitalization companies may also be unable to respond quickly to new competitive challenges, such as changes in technology and consumer tastes.
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| Defiance AAPL LightningSpread(TM) Income ETF | Money Market Instrument Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Money Market Instrument Risk. The Fund may use a variety of money market instruments for cash management purposes, including money market funds, depositary accounts and repurchase agreements. Repurchase agreements are contracts in which a seller of securities agrees to buy the securities back at a specified time and price. Repurchase agreements may be subject to market and credit risk related to the collateral securing the repurchase agreement. Money market instruments, including money market funds, may lose money through fees or other means.
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| Defiance AAPL LightningSpread(TM) Income ETF | New Fund Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | New Fund Risk. The Fund is a recently organized management investment company with no operating history. As a result, prospective investors do not have a track record or history on which to base their investment decisions.
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| Defiance AAPL LightningSpread(TM) Income ETF | Operational Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Operational Risk. The Fund is subject to risks arising from various operational factors, including, but not limited to, human error, processing and communication errors, errors of the Fund’s service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund relies on third-parties for a range of services, including custody. Any delay or failure relating to engaging or maintaining such service providers may affect the Fund’s ability to meet its investment objective. Although the Fund and Adviser seek to reduce these operational risks through controls and procedures, there is no way to completely protect against such risks.
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| Defiance AAPL LightningSpread(TM) Income ETF | Tax Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Tax Risk. The Fund intends to elect and to qualify each year to be treated as a regulated investment company (a “RIC”) under Subchapter M of the Internal Revenue Code of 1986, as amended (“Code”). As a RIC, the Fund will not be subject to U.S. federal income tax on the portion of its net investment income and net capital gain that it distributes to shareholders, provided that it satisfies certain requirements of the Code. If the Fund does not qualify as a RIC for any taxable year and certain relief provisions are not available, the Fund’s taxable income will be subject to tax at the Fund level and to a further tax at the shareholder level when such income is distributed. To comply with the asset diversification test applicable to a RIC, the Fund will attempt to ensure that the value of swap contracts and options on shares of a single issuer does not exceed 25% of the Fund’s value at the close of any quarter. If the value of swap contracts and options on shares of a single issuer were to exceed 25% of the Fund’s total assets at the end of a tax quarter, the Fund, generally, has a grace period to cure such lack of compliance. If the Fund fails to timely cure, it may no longer be eligible to be treated as a RIC.
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| Defiance AAPL LightningSpread(TM) Income ETF | U.S. Government and U.S. Agency Obligations Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | U.S. Government and U.S. Agency Obligations Risk. The Fund may invest in securities issued by the U.S. government or its agencies or instrumentalities. U.S. Government obligations include securities issued or guaranteed as to principal and interest by the U.S. Government, its agencies or instrumentalities, such as the U.S. Treasury. Payment of principal and interest on U.S. Government obligations may be backed by the full faith and credit of the United States or may be backed solely by the issuing or guaranteeing agency or instrumentality itself. In the latter case, the investor must look principally to the agency or instrumentality issuing or guaranteeing the obligation for ultimate repayment, which agency or instrumentality may be privately owned. There can be no assurance that the U.S. Government would provide financial support to its agencies or instrumentalities (including government-sponsored enterprises) where it is not obligated to do so.
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| Defiance AAPL LightningSpread(TM) Income ETF | AAPL Risks [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | AAPL Risks. The Fund invests in derivative instruments that are based on the value of AAPL. This subjects the Fund to certain of the same risks as if it owned shares of AAPL, even though it does not. By virtue of the Fund’s investments in derivative instruments that are based on the value of AAPL, the Fund may also be subject to the following risks:
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| Defiance AAPL LightningSpread(TM) Income ETF | Indirect Investment in AAPL Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Indirect Investment in AAPL Risk. Apple Inc. is not affiliated with the Trust, the Fund, the Adviser, or their respective affiliates and is not involved with this offering in any way and has no obligation to consider your Shares in taking any corporate actions that might affect the value of Shares. Investors in the Fund will not have voting rights and will not be able to influence management of Apple Inc. but will be exposed to the performance of AAPL (the underlying stock). Investors in the Fund will not have rights to receive dividends or other distributions or any other rights with respect to the underlying stock but will be subject to declines in the performance of the underlying stock.
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| Defiance AAPL LightningSpread(TM) Income ETF | AAPL Trading Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | AAPL Trading Risk. The trading price of AAPL may be volatile and subject to significant fluctuations in response to a variety of factors, many of which are beyond Apple Inc.’s control. The broader equity markets, and particularly those for large technology companies, have experienced substantial price and volume volatility that is often disproportionate to changes in operating performance. Factors such as shifts in consumer demand, supply chain disruptions, macroeconomic conditions, or changes in investor sentiment toward the technology sector may cause AAPL’s trading price to vary significantly. Public perception and media attention surrounding Apple Inc., its products, and its leadership can also affect market valuation independent of financial results. Furthermore, following periods of stock price volatility, securities class action litigation has often been brought against public companies, including Apple Inc. Any such proceedings could result in significant legal costs, potential liabilities, and diversion of management attention, which may adversely affect Apple Inc.’s operations and financial condition.
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| Defiance AAPL LightningSpread(TM) Income ETF | Apple Inc. Performance Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Apple Inc. Performance Risk. Apple Inc. may fail to meet its publicly announced guidelines or other expectations about its business, which could cause the price of AAPL to decline. Apple Inc. provides guidance regarding its expected financial and business performance, such as projections regarding sales and production, as well as anticipated future revenues, gross margins, profitability and cash flows. Correctly identifying key factors affecting business conditions and predicting future events is inherently an uncertain process, and the guidance Apple Inc. provides may not ultimately be accurate and has in the past been inaccurate in certain respects, such as the timing of new product manufacturing ramps. The guidance is based on certain assumptions such as those relating to global and local economic conditions, anticipated production and sales volumes (which generally are not linear throughout a given period), average sales prices, supplier and commodity costs, and planned cost reductions. If Apple Inc.’s guidance is not accurate or varies from actual results due to its inability to meet the assumptions or the impact on its financial performance that could occur as a result of various risks and uncertainties, the market value of common stock issued by Apple Inc. could decline significantly.
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| Defiance AAPL LightningSpread(TM) Income ETF | Technology Industry Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Technology Industry Risk. The technology industry, including, in some instances, Apple Inc., is subject to intense media, political and regulatory scrutiny, which may expose Apple Inc. to increasing regulation, government investigations, legal actions and penalties.
From time to time, Apple Inc. has made changes to its App Store, including actions taken in response to competition, market and legal conditions. Apple Inc. may make further business changes in the future. New legislative initiatives, such as the proposed EU Digital Markets Act, could, if enacted, require further changes. These changes could include how and to what extent Apple Inc. charges developers for access to its platforms and manages distribution of apps outside of the App Store.
Apple Inc. is also currently subject to antitrust investigations in various jurisdictions around the world, which can result in legal proceedings and claims against Apple Inc. that could, individually or in the aggregate, have a materially adverse impact on Apple Inc.’s business, results of operations and financial condition. For example, Apple Inc. is the subject of investigations in Europe and other jurisdictions relating to App Store terms and conditions. If such investigations result in adverse findings against Apple Inc., it could be exposed to significant fines and may be required to make changes to its App Store business, all of which could materially adversely affect Apple Inc.’s business, results of operations and financial condition. Apple Inc. is also subject to litigation relating to the App Store, which has resulted in changes to Apple Inc.’s business practices, and may in the future result in further changes.
Further, Apple Inc. has commercial relationships with other companies in the technology industry that are or may become subject to investigations and litigation that, if resolved against those other companies, could adversely affect Apple Inc.’s commercial relationships with those business partners and materially adversely affect Apple Inc.’s business, results of operations and financial condition. For example, Apple Inc. earns revenue from licensing arrangements with other companies to offer their search services on Apple Inc.’s platforms and apps, and certain of these arrangements are currently subject to government investigations and legal proceedings.
There can be no assurance Apple Inc.’s business will not be materially adversely affected, individually or in the aggregate, by the outcomes of such investigations, litigation or changes to laws and regulations in the future. Changes to Apple Inc.’s business practices to comply with new laws and regulations or in connection with other legal proceedings could negatively impact the reputation of Apple Inc.’s products for privacy and security and otherwise adversely affect the experience for users of Apple Inc.’s products and services, and result in harm to Apple Inc.’s reputation, loss of competitive advantage, poor market acceptance, reduced demand for products and services, and lost sales.
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| Defiance AAPL LightningSpread(TM) Income ETF | Global Events Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Global Events Risk. Apple Inc.’s business can be impacted by political events, trade and other international disputes, war, terrorism, natural disasters, public health issues, industrial accidents and other business interruptions. Political events, trade and other international disputes, war, terrorism, natural disasters, public health issues, industrial accidents and other business interruptions can harm or disrupt international commerce and the global economy, and could have a material adverse effect on Apple Inc. and its customers, suppliers, contract manufacturers, logistics providers, distributors, cellular network carriers and other channel partners.
Apple Inc. has a large, global business with sales outside the U.S. representing a majority of Apple Inc.’s total net sales, and Apple Inc. believes that it generally benefits from growth in international trade. Substantially all of Apple Inc.’s manufacturing is performed in whole or in part by outsourcing partners located primarily in Asia, including China mainland, India, Japan, South Korea, Taiwan and Vietnam. Trade policies and disputes and other international conflicts can result in tariffs, sanctions and other measures that restrict international trade, and can materially adversely affect Apple Inc.’s business, particularly if these measures occur in regions where Apple Inc. derives a significant portion of its revenues and/or has significant supply chain operations. For example, tensions between the U.S. and China have led to a series of tariffs being imposed by the U.S. on imports from China mainland, as well as other business restrictions. Tariffs increase the cost of Apple Inc.’s products and the components and raw materials that go into making them. These increased costs can adversely impact the gross margin that Apple Inc. earns on its products. Tariffs can also make Apple Inc.’s products more expensive for customers, which could make Apple Inc.’s products less competitive and reduce consumer demand. Countries may also adopt other measures, such as controls on imports or exports of goods, technology or data, that could adversely impact Apple Inc.’s operations and supply chain and limit Apple Inc.’s ability to offer its products and services as designed. These measures can require Apple Inc. to take various actions, including changing suppliers, restructuring business relationships, and ceasing to offer third-party applications on its platforms. Changing Apple Inc.’s operations in accordance with new or changed trade restrictions can be expensive, time-consuming and disruptive to Apple Inc.’s operations. Such restrictions can be announced with little or no advance notice and Apple Inc. may not be able to effectively mitigate all adverse impacts from such measures. If disputes and conflicts further escalate in the future, actions by governments in response could be significantly more severe and restrictive and could materially adversely affect Apple Inc.’s business. Political uncertainty surrounding trade and other international disputes could also have a negative effect on consumer confidence and spending, which could adversely affect Apple Inc.’s business.
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| Defiance AAPL LightningSpread(TM) Income ETF | Risk Lose Money [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | The Fund may not achieve its investment objective and there is a risk that you could lose all of your money invested in the Fund. | ||||||||||||||||||||||||
| Defiance AAPL LightningSpread(TM) Income ETF | Risk Nondiversified Status [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Non-Diversification Risk. Because the Fund is “non-diversified,” it may invest a greater percentage of its assets in the securities of a single issuer or a smaller number of issuers than if it was a diversified fund. As a result, a decline in the value of an investment in a single issuer or a smaller number of issuers could cause the Fund’s overall value to decline to a greater degree than if the Fund held a more diversified portfolio.
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| Defiance Blkstne LightningSpread(TM) Income ETF | Derivatives Risks [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Derivatives Risks. Derivatives are financial instruments that derive value from the underlying reference asset or assets, such as stocks, bonds, or funds (including ETFs), interest rates or indexes. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other ordinary investments, including risk related to the market, imperfect correlation with underlying investments or the Fund’s other portfolio holdings, higher price volatility, lack of availability, counterparty risk, liquidity, valuation and legal restrictions. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with ordinary portfolio securities transactions. The use of derivatives may result in larger losses or smaller gains than directly investing in securities. When the Fund uses derivatives, there may be an imperfect correlation between the value of the underlying reference asset and the derivative, which may prevent the Fund from achieving its investment objective. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of those amounts initially invested. In addition, the Fund’s investments in derivatives are subject to the following risks:
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| Defiance Blkstne LightningSpread(TM) Income ETF | Options Contracts [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
Although the Fund may use options to provide synthetic exposure to the Underlying Security, option prices may not perfectly replicate the rate of change of the Underlying Security prior to expiration, resulting in potential tracking differences. Similarly, the premiums received from selling put spreads are influenced by market volatility and the specific strike prices selected, which can vary based on market conditions.
The Fund may experience downside risk from certain options positions, including the potential for purchased options to expire worthless, resulting in the loss of premiums paid. Writing (selling) options also exposes the Fund to risk of loss, which may exceed the premiums received. For example, selling put options exposes the Fund to the risk that the price of the Underlying Security declines below the strike price, potentially resulting in substantial losses. Selling put spreads limits these losses to the difference between the strike prices of the sold and purchased puts, less the net premium received, but does not eliminate risk.
The Fund may encounter challenges in managing written options positions, particularly in volatile or illiquid markets, where closing or adjusting positions may be difficult or costly. Additionally, the process of rolling options positions, replacing expiring options with new contracts to maintain exposure, can involve significant transaction costs and expose the Fund to additional risks, such as adverse price movements during the roll period or reduced liquidity in the desired contracts. The Fund may also face margin requirements associated with written options, which could require the Fund to liquidate other assets to meet these obligations, potentially at unfavorable prices. Collectively, these risks may result in losses or reduced investment efficiency for the Fund.
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| Defiance Blkstne LightningSpread(TM) Income ETF | Swap Agreements [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
The swap agreements in which the Fund invests are generally traded in the over-the-counter market, which generally has less transparency than exchange-traded derivative instruments. In a standard swap transaction, two parties agree to exchange the return (or differentials in rates of return) earned or realized on particular predetermined reference assets, securities, or instruments. The gross return to be exchanged or “swapped” between the parties is calculated based on a notional amount or the return on or change in value of a particular dollar amount invested in the reference asset.
If the Underlying Security experiences a significant price movement that causes a material change in the Fund’s net assets, the terms of a swap agreement between the Fund and its counterparty may permit the counterparty to close out the swap transaction with the Fund. In that event, the Fund may be unable to enter into another swap agreement or invest in other derivatives to maintain exposure consistent with its investment objective. This may temporarily reduce the Fund’s ability to maintain its intended level of synthetic exposure until replacement transactions can be established.
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| Defiance Blkstne LightningSpread(TM) Income ETF | Counterparty Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Counterparty Risk. The Fund is subject to counterparty risk by virtue of its investments in options contracts. Transactions in some types of derivatives, including options, are required to be centrally cleared (“cleared derivatives”). In a transaction involving cleared derivatives, the Fund’s counterparty is a clearing house rather than a bank or broker. Since the Fund is not a member of clearing houses and only members of a clearing house (“clearing members”) can participate directly in the clearing house, the Fund will hold cleared derivatives through accounts at clearing members. In cleared derivatives positions, the Fund will make payments (including margin payments) to and receive payments from a clearing house through their accounts at clearing members. Customer funds held at a clearing organization in connection with any options contracts are held in a commingled omnibus account and are not identified to the name of the clearing member’s individual customers. As a result, assets deposited by the Fund with any clearing member as margin for options may, in certain circumstances, be used to satisfy losses of other clients of the Fund’s clearing member. In addition, although clearing members guarantee performance of their clients’ obligations to the clearing house, there is a risk that the assets of the Fund might not be fully protected in the event of the clearing member’s bankruptcy, as the Fund would be limited to recovering only a pro rata share of all available funds segregated on behalf of the clearing member’s customers for the relevant account class. The Fund is also subject to the risk that a limited number of clearing members are willing to transact on the Fund’s behalf, which heightens the risks associated with a clearing member’s default. This risk is greater for the Fund as it seeks to hold options contracts on a single security, and not a broader range of options contracts, which may limit the number of clearing members that are willing to transact on the Fund’s behalf. If a clearing member defaults the Fund could lose some or all of the benefits of a transaction entered into by the Fund with the clearing member. If the Fund cannot find a clearing member to transact with on the Fund’s behalf, the Fund may be unable to effectively implement its investment strategy.
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| Defiance Blkstne LightningSpread(TM) Income ETF | Distribution Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Distribution Risk. As part of the Fund’s investment objective, the Fund seeks to provide current income twice weekly. There is no assurance that the Fund will make more than one, or any, distribution in a given week. If the Fund does make distributions, the amounts of such distributions will likely vary greatly from one distribution to the next.
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| Defiance Blkstne LightningSpread(TM) Income ETF | NAV Erosion Risk Due to Distributions [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
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| Defiance Blkstne LightningSpread(TM) Income ETF | Equity Market Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Equity Market Risk. Common stocks are generally exposed to greater risk than other types of securities, such as preferred stock and debt obligations, because common stockholders generally have inferior rights to receive payment from specific issuers. The equity securities held in the Fund’s portfolio may experience sudden, unpredictable drops in value or long periods of decline in value. This may occur because of factors that affect securities markets generally or factors affecting specific issuers, industries, or sectors in which the Fund invests. Common stocks, such as those held by the Fund, are generally exposed to greater risk than other types of securities, such as preferred stock and debt obligations, because common stockholders generally have inferior rights to receive payment from issuers.
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| Defiance Blkstne LightningSpread(TM) Income ETF | Concentration Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Concentration Risk. The Fund’s investment exposure will be concentrated in (or substantially exposed to) the same industry or group of industries assigned to the Underlying Security. As a result, the Fund may be more susceptible to loss due to adverse occurrences that affect the price of such industries more than the market as a whole.
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| Defiance Blkstne LightningSpread(TM) Income ETF | ETF Risks [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | ETF Risks
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| Defiance Blkstne LightningSpread(TM) Income ETF | Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that are authorized to purchase and redeem Shares directly from the Fund (known as “Authorized Participants” or “APs”). In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services; or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
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| Defiance Blkstne LightningSpread(TM) Income ETF | Cash Redemption Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Cash Redemption Risk. The Fund’s investment strategy may require it to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. For example, the Fund may not be able to redeem in-kind certain securities held by the Fund (e.g., derivative instruments). In such a case, the Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used. By paying out higher annual capital gain distributions, investors may be subjected to increased capital gains taxes. Additionally, there may be brokerage costs or taxable gains or losses that may be imposed on the Fund in connection with a cash redemption that may not have occurred if the Fund had made a redemption in-kind. These costs could decrease the value of the Fund to the extent they are not offset by a transaction fee payable by an AP.
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| Defiance Blkstne LightningSpread(TM) Income ETF | Costs of Buying or Selling Shares [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
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| Defiance Blkstne LightningSpread(TM) Income ETF | Shares May Trade at Prices Other Than NAV [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
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| Defiance Blkstne LightningSpread(TM) Income ETF | Trading [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Trading. Although Shares are listed on a national securities exchange, such as Cboe BZX Exchange, Inc. (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that an active trading market for the Shares will develop or be maintained or that the Shares will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Shares. Shares trade on the Exchange at market price that may be below, at or above the Fund’s NAV. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable. In addition, trading in Shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange “circuit breaker” rules. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged. As a result, the Fund could be adversely affected and be unable to implement its investment strategies in the event of an unscheduled closing.
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| Defiance Blkstne LightningSpread(TM) Income ETF | Economic and Market Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Economic and Market Risk. Economies and financial markets throughout the world are becoming increasingly interconnected, which increases the likelihood that events or conditions in one country or region will adversely impact markets or issuers in other countries or regions. Securities in the Fund’s portfolio may underperform in comparison to securities in the general financial markets, a particular financial market, or other asset classes, due to a number of factors, including inflation (or expectations for inflation), deflation (or expectations for deflation), interest rates, global demand for particular products or resources, market instability, financial system instability, debt crises and downgrades, embargoes, tariffs, sanctions and other trade barriers, regulatory events, other governmental trade or market control programs and related geopolitical events. In addition, the value of the Fund’s investments may be negatively affected by the occurrence of global events such as war, terrorism, environmental disasters, natural disasters or events, country instability, and infectious disease epidemics or pandemics. The imposition by the U.S. of tariffs on goods imported from foreign countries and reciprocal tariffs levied on U.S. goods by those countries also may lead to volatility and instability in domestic and foreign markets.
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| Defiance Blkstne LightningSpread(TM) Income ETF | High Portfolio Turnover Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | High Portfolio Turnover Risk. The Fund may actively and frequently trade all or a significant portion of the Fund’s holdings. A high portfolio turnover rate increases transaction costs, which may increase the Fund’s expenses. Frequent trading may also cause adverse tax consequences for investors in the Fund due to an increase in short-term capital gains.
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| Defiance Blkstne LightningSpread(TM) Income ETF | Inflation Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Inflation Risk. Inflation risk is the risk that the value of assets or income from investments will be less in the future as inflation decreases the value of money. As inflation increases, the present value of the Fund’s assets and distributions, if any, may decline.
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| Defiance Blkstne LightningSpread(TM) Income ETF | Market Capitalization Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Market Capitalization Risk
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| Defiance Blkstne LightningSpread(TM) Income ETF | Large-Capitalization Investing [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Large-Capitalization Investing. The securities of large-capitalization companies may be relatively mature compared to smaller companies and therefore subject to slower growth during times of economic expansion. Large-capitalization companies may also be unable to respond quickly to new competitive challenges, such as changes in technology and consumer tastes.
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| Defiance Blkstne LightningSpread(TM) Income ETF | Money Market Instrument Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Money Market Instrument Risk. The Fund may use a variety of money market instruments for cash management purposes, including money market funds, depositary accounts and repurchase agreements. Repurchase agreements are contracts in which a seller of securities agrees to buy the securities back at a specified time and price. Repurchase agreements may be subject to market and credit risk related to the collateral securing the repurchase agreement. Money market instruments, including money market funds, may lose money through fees or other means.
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| Defiance Blkstne LightningSpread(TM) Income ETF | New Fund Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | New Fund Risk. The Fund is a recently organized management investment company with no operating history. As a result, prospective investors do not have a track record or history on which to base their investment decisions.
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| Defiance Blkstne LightningSpread(TM) Income ETF | Operational Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Operational Risk. The Fund is subject to risks arising from various operational factors, including, but not limited to, human error, processing and communication errors, errors of the Fund’s service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund relies on third-parties for a range of services, including custody. Any delay or failure relating to engaging or maintaining such service providers may affect the Fund’s ability to meet its investment objective. Although the Fund and Adviser seek to reduce these operational risks through controls and procedures, there is no way to completely protect against such risks.
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| Defiance Blkstne LightningSpread(TM) Income ETF | Tax Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Tax Risk. The Fund intends to elect and to qualify each year to be treated as a regulated investment company (a “RIC”) under Subchapter M of the Internal Revenue Code of 1986, as amended (“Code”). As a RIC, the Fund will not be subject to U.S. federal income tax on the portion of its net investment income and net capital gain that it distributes to shareholders, provided that it satisfies certain requirements of the Code. If the Fund does not qualify as a RIC for any taxable year and certain relief provisions are not available, the Fund’s taxable income will be subject to tax at the Fund level and to a further tax at the shareholder level when such income is distributed. To comply with the asset diversification test applicable to a RIC, the Fund will attempt to ensure that the value of swap contracts and options on shares of a single issuer does not exceed 25% of the Fund’s value at the close of any quarter. If the value of swap contracts and options on shares of a single issuer were to exceed 25% of the Fund’s total assets at the end of a tax quarter, the Fund, generally, has a grace period to cure such lack of compliance. If the Fund fails to timely cure, it may no longer be eligible to be treated as a RIC.
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| Defiance Blkstne LightningSpread(TM) Income ETF | U.S. Government and U.S. Agency Obligations Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | U.S. Government and U.S. Agency Obligations Risk. The Fund may invest in securities issued by the U.S. government or its agencies or instrumentalities. U.S. Government obligations include securities issued or guaranteed as to principal and interest by the U.S. Government, its agencies or instrumentalities, such as the U.S. Treasury. Payment of principal and interest on U.S. Government obligations may be backed by the full faith and credit of the United States or may be backed solely by the issuing or guaranteeing agency or instrumentality itself. In the latter case, the investor must look principally to the agency or instrumentality issuing or guaranteeing the obligation for ultimate repayment, which agency or instrumentality may be privately owned. There can be no assurance that the U.S. Government would provide financial support to its agencies or instrumentalities (including government-sponsored enterprises) where it is not obligated to do so.
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| Defiance Blkstne LightningSpread(TM) Income ETF | BX Risks [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | BX Risks. The Fund invests in derivative instruments that are based on the value of BX. This subjects the Fund to certain of the same risks as if it owned shares of BX, even though it does not. By virtue of the Fund’s investments in derivative instruments that are based on the value of BX, the Fund may also be subject to the following risks:
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| Defiance Blkstne LightningSpread(TM) Income ETF | Indirect Investment in BX Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Indirect Investment in BX Risk. Blackstone Inc. is not affiliated with the Trust, the Fund, the Adviser, or their respective affiliates and is not involved with this offering in any way and has no obligation to consider your Shares in taking any corporate actions that might affect the value of Shares. Investors in the Fund will not have voting rights and will not be able to influence management of Blackstone Inc. but will be exposed to the performance of BX (the underlying stock). Investors in the Fund will not have rights to receive dividends or other distributions or any other rights with respect to the underlying stock but will be subject to declines in the performance of the underlying stock.
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| Defiance Blkstne LightningSpread(TM) Income ETF | BX Trading Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | BX Trading Risk. BX may be volatile and subject to significant fluctuations in response to a variety of factors, many of which are beyond BX’s control. These factors include variations in operating results, changes in market conditions affecting the asset-management industry, fluctuations in interest rates, and changes in investor sentiment regarding the alternative-investment sector. Broader stock market volatility may also affect BX’s trading price, and such fluctuations may be disproportionate to changes in Blackstone Inc.’s operating performance. Public perception of Blackstone Inc., the alternative-asset-management industry, or the broader financial markets may further influence the market price of BX. Periods of market stress or negative publicity can adversely affect investor confidence and trading dynamics. In addition, following periods of volatility in the market price of a company’s securities, securities class-action litigation has often been instituted against issuers. Blackstone has, from time to time, been subject to stockholder litigation and may be involved in such actions in the future. Any adverse judgments, settlements, or costs associated with these proceedings could have a material effect on BX’s financial condition or divert management’s attention from business operations.
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| Defiance Blkstne LightningSpread(TM) Income ETF | Blackstone Inc. Performance Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Blackstone Inc. Performance Risk. The financial performance and market price of BX depend on its ability to meet investor and analyst expectations. Blackstone Inc. may from time to time provide forward-looking information regarding anticipated fundraising, investment performance, or earnings, all of which involve inherent uncertainty. These expectations rely on assumptions about economic conditions, market performance, and other factors largely outside of Blackstone Inc.’s control. Adverse market developments, reduced investment performance, or slower capital deployment could cause results to differ materially from expectations and negatively affect investor confidence. If Blackstone Inc. fails to achieve projected financial or strategic objectives, or if actual results fall short of market expectations, the trading price of BX could decline significantly.
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| Defiance Blkstne LightningSpread(TM) Income ETF | Market and Economic Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Market and Economic Risk. Blackstone Inc.’s performance is materially exposed to macroeconomic, financial market and geopolitical developments. Unfavorable downturns such as economic recessions, inflationary pressures, rapid interest-rate increases, capital-market disruptions or global geopolitical instability may materially reduce the value of the assets under management, impair fundraising and realization activities, and adversely affect operating results, financial condition and cash flows. Additionally, elevated interest rates or constrained access to capital markets may reduce the ability of funds or portfolio companies to execute or realize investments, creating downward pressure on returns.
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| Defiance Blkstne LightningSpread(TM) Income ETF | Fundraising and Realization Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Fundraising and Realization Risk. Blackstone Inc.’s asset-management model relies heavily on its ability to raise new third-party capital, deploy it in attractive investments, and realize those investments at favorable valuations. A slowdown in fundraising, or deterioration in the performance of its funds and underlying assets, could reduce management fee revenue, impair performance fee (“carry”) recognition and may even necessitate the repayment of already-paid performance allocations. Moreover, the valuations of private assets and funds are inherently subjective and may not be realized in the market; if actual exit values or timing diverge from expectations, Blackstone Inc.’s financial results and investor returns may suffer.
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| Defiance Blkstne LightningSpread(TM) Income ETF | Operational, Regulatory and Conflict-of-Interest Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Operational, Regulatory and Conflict-of-Interest Risk. Blackstone Inc.’s operations span multiple jurisdictions and asset classes, subjecting it to complex regulatory regimes — including securities, tax, anti-money-laundering and investment-adviser rules. Extensive regulation may impede Blackstone Inc.’s ability to deploy capital, monetize investments or operate certain businesses. In addition, given Blackstone Inc.’s scale and the breadth of its business lines, conflicts of interest may arise (for example, in the allocation of investment opportunities among funds and vehicles, or in transactions between affiliated or side-by-side vehicles). The management of such conflicts is critical and the failure to do so effectively could impair investor confidence, may lead to reputational damage, and could result in adverse investor or regulatory actions.
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| Defiance Blkstne LightningSpread(TM) Income ETF | Risk Lose Money [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | The Fund may not achieve its investment objective and there is a risk that you could lose all of your money invested in the Fund. | ||||||||||||||||||||||||
| Defiance Blkstne LightningSpread(TM) Income ETF | Risk Nondiversified Status [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Non-Diversification Risk. Because the Fund is “non-diversified,” it may invest a greater percentage of its assets in the securities of a single issuer or a smaller number of issuers than if it was a diversified fund. As a result, a decline in the value of an investment in a single issuer or a smaller number of issuers could cause the Fund’s overall value to decline to a greater degree than if the Fund held a more diversified portfolio.
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| Defiance CRCL LightningSpread(TM) Income ETF | Derivatives Risks [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Derivatives Risks. Derivatives are financial instruments that derive value from the underlying reference asset or assets, such as stocks, bonds, or funds (including ETFs), interest rates or indexes. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other ordinary investments, including risk related to the market, imperfect correlation with underlying investments or the Fund’s other portfolio holdings, higher price volatility, lack of availability, counterparty risk, liquidity, valuation and legal restrictions. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with ordinary portfolio securities transactions. The use of derivatives may result in larger losses or smaller gains than directly investing in securities. When the Fund uses derivatives, there may be an imperfect correlation between the value of the underlying reference asset and the derivative, which may prevent the Fund from achieving its investment objective. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of those amounts initially invested. In addition, the Fund’s investments in derivatives are subject to the following risks:
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| Defiance CRCL LightningSpread(TM) Income ETF | Options Contracts [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
Although the Fund may use options to provide synthetic exposure to the Underlying Security, option prices may not perfectly replicate the rate of change of the Underlying Security prior to expiration, resulting in potential tracking differences. Similarly, the premiums received from selling put spreads are influenced by market volatility and the specific strike prices selected, which can vary based on market conditions.
The Fund may experience downside risk from certain options positions, including the potential for purchased options to expire worthless, resulting in the loss of premiums paid. Writing (selling) options also exposes the Fund to risk of loss, which may exceed the premiums received. For example, selling put options exposes the Fund to the risk that the price of the Underlying Security declines below the strike price, potentially resulting in substantial losses. Selling put spreads limits these losses to the difference between the strike prices of the sold and purchased puts, less the net premium received, but does not eliminate risk.
The Fund may encounter challenges in managing written options positions, particularly in volatile or illiquid markets, where closing or adjusting positions may be difficult or costly. Additionally, the process of rolling options positions, replacing expiring options with new contracts to maintain exposure, can involve significant transaction costs and expose the Fund to additional risks, such as adverse price movements during the roll period or reduced liquidity in the desired contracts. The Fund may also face margin requirements associated with written options, which could require the Fund to liquidate other assets to meet these obligations, potentially at unfavorable prices. Collectively, these risks may result in losses or reduced investment efficiency for the Fund.
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| Defiance CRCL LightningSpread(TM) Income ETF | Swap Agreements [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
The swap agreements in which the Fund invests are generally traded in the over-the-counter market, which generally has less transparency than exchange-traded derivative instruments. In a standard swap transaction, two parties agree to exchange the return (or differentials in rates of return) earned or realized on particular predetermined reference assets, securities, or instruments. The gross return to be exchanged or “swapped” between the parties is calculated based on a notional amount or the return on or change in value of a particular dollar amount invested in the reference asset.
If the Underlying Security experiences a significant price movement that causes a material change in the Fund’s net assets, the terms of a swap agreement between the Fund and its counterparty may permit the counterparty to close out the swap transaction with the Fund. In that event, the Fund may be unable to enter into another swap agreement or invest in other derivatives to maintain exposure consistent with its investment objective. This may temporarily reduce the Fund’s ability to maintain its intended level of synthetic exposure until replacement transactions can be established.
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| Defiance CRCL LightningSpread(TM) Income ETF | Counterparty Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Counterparty Risk. The Fund is subject to counterparty risk by virtue of its investments in options contracts. Transactions in some types of derivatives, including options, are required to be centrally cleared (“cleared derivatives”). In a transaction involving cleared derivatives, the Fund’s counterparty is a clearing house rather than a bank or broker. Since the Fund is not a member of clearing houses and only members of a clearing house (“clearing members”) can participate directly in the clearing house, the Fund will hold cleared derivatives through accounts at clearing members. In cleared derivatives positions, the Fund will make payments (including margin payments) to and receive payments from a clearing house through their accounts at clearing members. Customer funds held at a clearing organization in connection with any options contracts are held in a commingled omnibus account and are not identified to the name of the clearing member’s individual customers. As a result, assets deposited by the Fund with any clearing member as margin for options may, in certain circumstances, be used to satisfy losses of other clients of the Fund’s clearing member. In addition, although clearing members guarantee performance of their clients’ obligations to the clearing house, there is a risk that the assets of the Fund might not be fully protected in the event of the clearing member’s bankruptcy, as the Fund would be limited to recovering only a pro rata share of all available funds segregated on behalf of the clearing member’s customers for the relevant account class. The Fund is also subject to the risk that a limited number of clearing members are willing to transact on the Fund’s behalf, which heightens the risks associated with a clearing member’s default. This risk is greater for the Fund as it seeks to hold options contracts on a single security, and not a broader range of options contracts, which may limit the number of clearing members that are willing to transact on the Fund’s behalf. If a clearing member defaults the Fund could lose some or all of the benefits of a transaction entered into by the Fund with the clearing member. If the Fund cannot find a clearing member to transact with on the Fund’s behalf, the Fund may be unable to effectively implement its investment strategy.
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| Defiance CRCL LightningSpread(TM) Income ETF | Distribution Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Distribution Risk. As part of the Fund’s investment objective, the Fund seeks to provide current income twice weekly. There is no assurance that the Fund will make more than one, or any, distribution in a given week. If the Fund does make distributions, the amounts of such distributions will likely vary greatly from one distribution to the next.
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| Defiance CRCL LightningSpread(TM) Income ETF | NAV Erosion Risk Due to Distributions [Member] | |||||||||||||||||||||||||
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| Defiance CRCL LightningSpread(TM) Income ETF | Equity Market Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Equity Market Risk. Common stocks are generally exposed to greater risk than other types of securities, such as preferred stock and debt obligations, because common stockholders generally have inferior rights to receive payment from specific issuers. The equity securities held in the Fund’s portfolio may experience sudden, unpredictable drops in value or long periods of decline in value. This may occur because of factors that affect securities markets generally or factors affecting specific issuers, industries, or sectors in which the Fund invests. Common stocks, such as those held by the Fund, are generally exposed to greater risk than other types of securities, such as preferred stock and debt obligations, because common stockholders generally have inferior rights to receive payment from issuers.
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| Defiance CRCL LightningSpread(TM) Income ETF | Concentration Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Concentration Risk. The Fund’s investment exposure will be concentrated in (or substantially exposed to) the same industry or group of industries assigned to the Underlying Security. As a result, the Fund may be more susceptible to loss due to adverse occurrences that affect the price of such industries more than the market as a whole.
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| Defiance CRCL LightningSpread(TM) Income ETF | ETF Risks [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | ETF Risks
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| Defiance CRCL LightningSpread(TM) Income ETF | Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that are authorized to purchase and redeem Shares directly from the Fund (known as “Authorized Participants” or “APs”). In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services; or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
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| Defiance CRCL LightningSpread(TM) Income ETF | Cash Redemption Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Cash Redemption Risk. The Fund’s investment strategy may require it to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. For example, the Fund may not be able to redeem in-kind certain securities held by the Fund (e.g., derivative instruments). In such a case, the Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used. By paying out higher annual capital gain distributions, investors may be subjected to increased capital gains taxes. Additionally, there may be brokerage costs or taxable gains or losses that may be imposed on the Fund in connection with a cash redemption that may not have occurred if the Fund had made a redemption in-kind. These costs could decrease the value of the Fund to the extent they are not offset by a transaction fee payable by an AP.
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| Defiance CRCL LightningSpread(TM) Income ETF | Costs of Buying or Selling Shares [Member] | |||||||||||||||||||||||||
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| Defiance CRCL LightningSpread(TM) Income ETF | Shares May Trade at Prices Other Than NAV [Member] | |||||||||||||||||||||||||
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| Defiance CRCL LightningSpread(TM) Income ETF | Trading [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Trading. Although Shares are listed on a national securities exchange, such as Cboe BZX Exchange, Inc. (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that an active trading market for the Shares will develop or be maintained or that the Shares will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Shares. Shares trade on the Exchange at market price that may be below, at or above the Fund’s NAV. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable. In addition, trading in Shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange “circuit breaker” rules. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged. As a result, the Fund could be adversely affected and be unable to implement its investment strategies in the event of an unscheduled closing.
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| Defiance CRCL LightningSpread(TM) Income ETF | Economic and Market Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Economic and Market Risk. Economies and financial markets throughout the world are becoming increasingly interconnected, which increases the likelihood that events or conditions in one country or region will adversely impact markets or issuers in other countries or regions. Securities in the Fund’s portfolio may underperform in comparison to securities in the general financial markets, a particular financial market, or other asset classes, due to a number of factors, including inflation (or expectations for inflation), deflation (or expectations for deflation), interest rates, global demand for particular products or resources, market instability, financial system instability, debt crises and downgrades, embargoes, tariffs, sanctions and other trade barriers, regulatory events, other governmental trade or market control programs and related geopolitical events. In addition, the value of the Fund’s investments may be negatively affected by the occurrence of global events such as war, terrorism, environmental disasters, natural disasters or events, country instability, and infectious disease epidemics or pandemics. The imposition by the U.S. of tariffs on goods imported from foreign countries and reciprocal tariffs levied on U.S. goods by those countries also may lead to volatility and instability in domestic and foreign markets.
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| Defiance CRCL LightningSpread(TM) Income ETF | High Portfolio Turnover Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | High Portfolio Turnover Risk. The Fund may actively and frequently trade all or a significant portion of the Fund’s holdings. A high portfolio turnover rate increases transaction costs, which may increase the Fund’s expenses. Frequent trading may also cause adverse tax consequences for investors in the Fund due to an increase in short-term capital gains.
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| Defiance CRCL LightningSpread(TM) Income ETF | Inflation Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Inflation Risk. Inflation risk is the risk that the value of assets or income from investments will be less in the future as inflation decreases the value of money. As inflation increases, the present value of the Fund’s assets and distributions, if any, may decline.
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| Defiance CRCL LightningSpread(TM) Income ETF | Market Capitalization Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Market Capitalization Risk
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| Defiance CRCL LightningSpread(TM) Income ETF | Large-Capitalization Investing [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Large-Capitalization Investing. The securities of large-capitalization companies may be relatively mature compared to smaller companies and therefore subject to slower growth during times of economic expansion. Large-capitalization companies may also be unable to respond quickly to new competitive challenges, such as changes in technology and consumer tastes.
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| Defiance CRCL LightningSpread(TM) Income ETF | Money Market Instrument Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Money Market Instrument Risk. The Fund may use a variety of money market instruments for cash management purposes, including money market funds, depositary accounts and repurchase agreements. Repurchase agreements are contracts in which a seller of securities agrees to buy the securities back at a specified time and price. Repurchase agreements may be subject to market and credit risk related to the collateral securing the repurchase agreement. Money market instruments, including money market funds, may lose money through fees or other means.
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| Defiance CRCL LightningSpread(TM) Income ETF | New Fund Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | New Fund Risk. The Fund is a recently organized management investment company with no operating history. As a result, prospective investors do not have a track record or history on which to base their investment decisions.
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| Defiance CRCL LightningSpread(TM) Income ETF | Operational Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Operational Risk. The Fund is subject to risks arising from various operational factors, including, but not limited to, human error, processing and communication errors, errors of the Fund’s service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund relies on third-parties for a range of services, including custody. Any delay or failure relating to engaging or maintaining such service providers may affect the Fund’s ability to meet its investment objective. Although the Fund and Adviser seek to reduce these operational risks through controls and procedures, there is no way to completely protect against such risks.
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| Defiance CRCL LightningSpread(TM) Income ETF | Tax Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Tax Risk. The Fund intends to elect and to qualify each year to be treated as a regulated investment company (a “RIC”) under Subchapter M of the Internal Revenue Code of 1986, as amended (“Code”). As a RIC, the Fund will not be subject to U.S. federal income tax on the portion of its net investment income and net capital gain that it distributes to shareholders, provided that it satisfies certain requirements of the Code. If the Fund does not qualify as a RIC for any taxable year and certain relief provisions are not available, the Fund’s taxable income will be subject to tax at the Fund level and to a further tax at the shareholder level when such income is distributed. To comply with the asset diversification test applicable to a RIC, the Fund will attempt to ensure that the value of swap contracts and options on shares of a single issuer does not exceed 25% of the Fund’s value at the close of any quarter. If the value of swap contracts and options on shares of a single issuer were to exceed 25% of the Fund’s total assets at the end of a tax quarter, the Fund, generally, has a grace period to cure such lack of compliance. If the Fund fails to timely cure, it may no longer be eligible to be treated as a RIC.
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| Defiance CRCL LightningSpread(TM) Income ETF | U.S. Government and U.S. Agency Obligations Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | U.S. Government and U.S. Agency Obligations Risk. The Fund may invest in securities issued by the U.S. government or its agencies or instrumentalities. U.S. Government obligations include securities issued or guaranteed as to principal and interest by the U.S. Government, its agencies or instrumentalities, such as the U.S. Treasury. Payment of principal and interest on U.S. Government obligations may be backed by the full faith and credit of the United States or may be backed solely by the issuing or guaranteeing agency or instrumentality itself. In the latter case, the investor must look principally to the agency or instrumentality issuing or guaranteeing the obligation for ultimate repayment, which agency or instrumentality may be privately owned. There can be no assurance that the U.S. Government would provide financial support to its agencies or instrumentalities (including government-sponsored enterprises) where it is not obligated to do so.
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| Defiance CRCL LightningSpread(TM) Income ETF | Circle Internet Group, Inc. Risks [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Circle Internet Group, Inc. Risks. The Fund invests in derivative instruments that are based on the value of CRCL. This subjects the Fund to certain of the same risks as if it owned shares of CRCL, even though it does not. By virtue of the Fund’s investments in derivative instruments that are based on the value of CRCL, the Fund may also be subject to the following risks:
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| Defiance CRCL LightningSpread(TM) Income ETF | Indirect Investment in Circle Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Indirect Investment in Circle Risk. Circle is not affiliated with the Trust, the Fund, or the Adviser, or their respective affiliates and is not involved with this offering in any way and has no obligation to consider your Shares in taking any corporate actions that might affect the value of Shares. Investors in the Fund will not have voting rights and will not be able to influence management of Circle but will be exposed to the performance of CRCL (the Underlying Security). Investors in the Fund will not have the right to receive dividends or other distributions or any other rights with respect to CRCL but will be subject to declines in the performance of CRCL.
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| Defiance CRCL LightningSpread(TM) Income ETF | CRCL Trading Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | CRCL Trading Risk. The trading price of CRCL may be subject to volatility and could experience wide fluctuations due to various factors. Short sellers may also play a significant role in trading CRCL, potentially affecting the supply and demand dynamics and contributing to market price volatility. Public perception and external factors beyond the company’s control may influence CRCL’s stock price disproportionately. Additionally, following periods of market volatility, companies have faced securities class action litigation. Any adverse judgment or future stockholder litigation could result in substantial costs and divert management’s attention and resources. In the event of a halt in trading of CRCL, trading in shares of related funds may be impacted, either temporarily or indefinitely.
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| Defiance CRCL LightningSpread(TM) Income ETF | Circle Performance Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Circle Performance Risk. Circle may fail to meet its publicly announced guidelines or other expectations about its business, which could cause the price of CRCL to decline. Circle provides guidance regarding its expected financial and business performance, such as projections regarding sales and production, as well as anticipated future revenues, gross margins, profitability and cash flows. Correctly identifying key factors affecting business conditions and predicting future events is inherently an uncertain process, and the guidance Circle provides may not ultimately be accurate. If Circle’s guidance is not accurate or varies from actual results due to its inability to meet the assumptions or the impact on its financial performance that could occur as a result of various risks and uncertainties, the market value of CRCL could decline significantly.
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| Defiance CRCL LightningSpread(TM) Income ETF | Software Industry Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Software Industry Risk. The software industry can be significantly affected by intense competition, aggressive pricing, technological innovations, and product obsolescence. Companies in the software industry are subject to significant competitive pressures, such as aggressive pricing, new market entrants, competition for market share, short product cycles due to an accelerated rate of technological developments and the potential for limited earnings and/or falling profit margins. These companies also face the risks that new services, equipment or technologies will not be accepted by consumers and businesses or will become rapidly obsolete. These factors can affect the profitability of these companies and, as a result, the value of their securities. Also, patent protection is integral to the success of many companies in this industry, and profitability can be affected materially by, among other things, the cost of obtaining (or failing to obtain) patent approvals, the cost of litigating patent infringement and the loss of patent protection for products (which significantly increases pricing pressures and can materially reduce profitability with respect to such products). In addition, many software companies have limited operating histories. Prices of these companies’ securities historically have been more volatile than other securities, especially over the short term.
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| Defiance CRCL LightningSpread(TM) Income ETF | Stablecoin Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Stablecoin Risk. Circle’s performance depends significantly on the stability, trust, and circulation of Circle’s stablecoins, in particular the USDC and EURC stable coins (“Circle Stablecoins”), as well as the broader digital asset environment. Stablecoins remain in the early stages of adoption and regulatory development and are particularly susceptible to operational challenges, including those arising from surges in demand or systemic shocks. Stablecoins are subject to operational, market, and regulatory uncertainties. Changes in regulatory treatment, including legislation or enforcement actions restricting the issuance, redemption, or reserve management of stablecoins, could significantly impair Circle’s business model and financial condition. Circle’s stablecoins may be affected by market shocks, redemption activity, or disruptions in secondary marketplaces. Additionally, the broader digital asset industry is still developing standards around compliance, security, and governance. As a result, stablecoins face unique challenges that could impact their circulation, utility, and perception. Any adverse developments in these areas could materially affect the performance of Circle’s products and services.
Circle generates a large portion of its total revenue from interest income earned on the reserves backing its stablecoins. The size of these reserves is influenced by the amount of stablecoins in circulation, which in turn depends on demand for Circle’s products and services. The level of interest income is also affected by prevailing interest rates and the composition of the reserve assets. As a result, Circle’s revenue is subject to fluctuations in both market demand for stablecoins and macroeconomic conditions, including changes in interest rate environments.
The stablecoin market is becoming increasingly competitive, with rivals and potential entrants from traditional banks exploring stablecoin offerings. This could erode Circle’s market share and impact its revenue and profitability. Additionally, Circle is exposed to operational and cybersecurity risks inherent in managing a digital financial infrastructure, as well as technology risk tied to the performance of public blockchains on which Circle Stablecoins circulate.
While Circle Stablecoins are designed to be redeemable 1:1 for their underlying currencies (e.g., U.S. dollar, euro, etc.), there is a risk of a “de-peg,” where a token could trade below a 1:1 rate on third-party platforms. This could be triggered by events like a run on a bank holding Circle’s assets. Any perceived instability, lack of transparency or reserve shortfall could lead to rapid redemptions and reputational damage to Circle.
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| Defiance CRCL LightningSpread(TM) Income ETF | New Issuer Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | New Issuer Risk. Circle recently completed an initial public offering (i.e., CRCL has recently been made available on a stock exchange) and, as a result, its securities have a limited trading history. The share prices of new public companies may be highly volatile and may decline sharply following their initial public offering. Any of these factors may materially and adversely impact the share price of CRCL, increase the volatility of an investment in CRCL and have a negative impact on the performance of the Fund. Additionally, CRCL may in the future be traded by short sellers, which may put pressure on its supply and demand, further influencing volatility in its market price.
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| Defiance CRCL LightningSpread(TM) Income ETF | Risk Lose Money [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | The Fund may not achieve its investment objective and there is a risk that you could lose all of your money invested in the Fund. | ||||||||||||||||||||||||
| Defiance CRCL LightningSpread(TM) Income ETF | Risk Nondiversified Status [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Non-Diversification Risk. Because the Fund is “non-diversified,” it may invest a greater percentage of its assets in the securities of a single issuer or a smaller number of issuers than if it was a diversified fund. As a result, a decline in the value of an investment in a single issuer or a smaller number of issuers could cause the Fund’s overall value to decline to a greater degree than if the Fund held a more diversified portfolio.
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| Defiance COIN LightningSpread(TM) Income ETF | Derivatives Risks [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Derivatives Risks. Derivatives are financial instruments that derive value from the underlying reference asset or assets, such as stocks, bonds, or funds (including ETFs), interest rates or indexes. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other ordinary investments, including risk related to the market, imperfect correlation with underlying investments or the Fund’s other portfolio holdings, higher price volatility, lack of availability, counterparty risk, liquidity, valuation and legal restrictions. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with ordinary portfolio securities transactions. The use of derivatives may result in larger losses or smaller gains than directly investing in securities. When the Fund uses derivatives, there may be an imperfect correlation between the value of the underlying reference asset and the derivative, which may prevent the Fund from achieving its investment objective. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of those amounts initially invested. In addition, the Fund’s investments in derivatives are subject to the following risks:
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| Defiance COIN LightningSpread(TM) Income ETF | Options Contracts [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
Although the Fund may use options to provide synthetic exposure to the Underlying Security, option prices may not perfectly replicate the rate of change of the Underlying Security prior to expiration, resulting in potential tracking differences. Similarly, the premiums received from selling put spreads are influenced by market volatility and the specific strike prices selected, which can vary based on market conditions.
The Fund may experience downside risk from certain options positions, including the potential for purchased options to expire worthless, resulting in the loss of premiums paid. Writing (selling) options also exposes the Fund to risk of loss, which may exceed the premiums received. For example, selling put options exposes the Fund to the risk that the price of the Underlying Security declines below the strike price, potentially resulting in substantial losses. Selling put spreads limits these losses to the difference between the strike prices of the sold and purchased puts, less the net premium received, but does not eliminate risk.
The Fund may encounter challenges in managing written options positions, particularly in volatile or illiquid markets, where closing or adjusting positions may be difficult or costly. Additionally, the process of rolling options positions, replacing expiring options with new contracts to maintain exposure, can involve significant transaction costs and expose the Fund to additional risks, such as adverse price movements during the roll period or reduced liquidity in the desired contracts. The Fund may also face margin requirements associated with written options, which could require the Fund to liquidate other assets to meet these obligations, potentially at unfavorable prices. Collectively, these risks may result in losses or reduced investment efficiency for the Fund.
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| Defiance COIN LightningSpread(TM) Income ETF | Swap Agreements [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
The swap agreements in which the Fund invests are generally traded in the over-the-counter market, which generally has less transparency than exchange-traded derivative instruments. In a standard swap transaction, two parties agree to exchange the return (or differentials in rates of return) earned or realized on particular predetermined reference assets, securities, or instruments. The gross return to be exchanged or “swapped” between the parties is calculated based on a notional amount or the return on or change in value of a particular dollar amount invested in the reference asset.
If the Underlying Security experiences a significant price movement that causes a material change in the Fund’s net assets, the terms of a swap agreement between the Fund and its counterparty may permit the counterparty to close out the swap transaction with the Fund. In that event, the Fund may be unable to enter into another swap agreement or invest in other derivatives to maintain exposure consistent with its investment objective. This may temporarily reduce the Fund’s ability to maintain its intended level of synthetic exposure until replacement transactions can be established.
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| Defiance COIN LightningSpread(TM) Income ETF | Counterparty Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Counterparty Risk. The Fund is subject to counterparty risk by virtue of its investments in options contracts. Transactions in some types of derivatives, including options, are required to be centrally cleared (“cleared derivatives”). In a transaction involving cleared derivatives, the Fund’s counterparty is a clearing house rather than a bank or broker. Since the Fund is not a member of clearing houses and only members of a clearing house (“clearing members”) can participate directly in the clearing house, the Fund will hold cleared derivatives through accounts at clearing members. In cleared derivatives positions, the Fund will make payments (including margin payments) to and receive payments from a clearing house through their accounts at clearing members. Customer funds held at a clearing organization in connection with any options contracts are held in a commingled omnibus account and are not identified to the name of the clearing member’s individual customers. As a result, assets deposited by the Fund with any clearing member as margin for options may, in certain circumstances, be used to satisfy losses of other clients of the Fund’s clearing member. In addition, although clearing members guarantee performance of their clients’ obligations to the clearing house, there is a risk that the assets of the Fund might not be fully protected in the event of the clearing member’s bankruptcy, as the Fund would be limited to recovering only a pro rata share of all available funds segregated on behalf of the clearing member’s customers for the relevant account class. The Fund is also subject to the risk that a limited number of clearing members are willing to transact on the Fund’s behalf, which heightens the risks associated with a clearing member’s default. This risk is greater for the Fund as it seeks to hold options contracts on a single security, and not a broader range of options contracts, which may limit the number of clearing members that are willing to transact on the Fund’s behalf. If a clearing member defaults the Fund could lose some or all of the benefits of a transaction entered into by the Fund with the clearing member. If the Fund cannot find a clearing member to transact with on the Fund’s behalf, the Fund may be unable to effectively implement its investment strategy.
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| Defiance COIN LightningSpread(TM) Income ETF | Distribution Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Distribution Risk. As part of the Fund’s investment objective, the Fund seeks to provide current income twice weekly. There is no assurance that the Fund will make more than one, or any, distribution in a given week. If the Fund does make distributions, the amounts of such distributions will likely vary greatly from one distribution to the next.
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| Defiance COIN LightningSpread(TM) Income ETF | NAV Erosion Risk Due to Distributions [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] |
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| Defiance COIN LightningSpread(TM) Income ETF | Equity Market Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Equity Market Risk. Common stocks are generally exposed to greater risk than other types of securities, such as preferred stock and debt obligations, because common stockholders generally have inferior rights to receive payment from specific issuers. The equity securities held in the Fund’s portfolio may experience sudden, unpredictable drops in value or long periods of decline in value. This may occur because of factors that affect securities markets generally or factors affecting specific issuers, industries, or sectors in which the Fund invests. Common stocks, such as those held by the Fund, are generally exposed to greater risk than other types of securities, such as preferred stock and debt obligations, because common stockholders generally have inferior rights to receive payment from issuers.
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| Defiance COIN LightningSpread(TM) Income ETF | Concentration Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Concentration Risk. The Fund’s investment exposure will be concentrated in (or substantially exposed to) the same industry or group of industries assigned to the Underlying Security. As a result, the Fund may be more susceptible to loss due to adverse occurrences that affect the price of such industries more than the market as a whole.
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| Defiance COIN LightningSpread(TM) Income ETF | ETF Risks [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | ETF Risks
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| Defiance COIN LightningSpread(TM) Income ETF | Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that are authorized to purchase and redeem Shares directly from the Fund (known as “Authorized Participants” or “APs”). In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services; or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
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| Defiance COIN LightningSpread(TM) Income ETF | Cash Redemption Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Cash Redemption Risk. The Fund’s investment strategy may require it to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. For example, the Fund may not be able to redeem in-kind certain securities held by the Fund (e.g., derivative instruments). In such a case, the Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used. By paying out higher annual capital gain distributions, investors may be subjected to increased capital gains taxes. Additionally, there may be brokerage costs or taxable gains or losses that may be imposed on the Fund in connection with a cash redemption that may not have occurred if the Fund had made a redemption in-kind. These costs could decrease the value of the Fund to the extent they are not offset by a transaction fee payable by an AP.
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| Defiance COIN LightningSpread(TM) Income ETF | Costs of Buying or Selling Shares [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] |
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| Defiance COIN LightningSpread(TM) Income ETF | Shares May Trade at Prices Other Than NAV [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
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| Defiance COIN LightningSpread(TM) Income ETF | Trading [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Trading. Although Shares are listed on a national securities exchange, such as Cboe BZX Exchange, Inc. (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that an active trading market for the Shares will develop or be maintained or that the Shares will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Shares. Shares trade on the Exchange at market price that may be below, at or above the Fund’s NAV. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable. In addition, trading in Shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange “circuit breaker” rules. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged. As a result, the Fund could be adversely affected and be unable to implement its investment strategies in the event of an unscheduled closing.
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| Defiance COIN LightningSpread(TM) Income ETF | Economic and Market Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Economic and Market Risk. Economies and financial markets throughout the world are becoming increasingly interconnected, which increases the likelihood that events or conditions in one country or region will adversely impact markets or issuers in other countries or regions. Securities in the Fund’s portfolio may underperform in comparison to securities in the general financial markets, a particular financial market, or other asset classes, due to a number of factors, including inflation (or expectations for inflation), deflation (or expectations for deflation), interest rates, global demand for particular products or resources, market instability, financial system instability, debt crises and downgrades, embargoes, tariffs, sanctions and other trade barriers, regulatory events, other governmental trade or market control programs and related geopolitical events. In addition, the value of the Fund’s investments may be negatively affected by the occurrence of global events such as war, terrorism, environmental disasters, natural disasters or events, country instability, and infectious disease epidemics or pandemics. The imposition by the U.S. of tariffs on goods imported from foreign countries and reciprocal tariffs levied on U.S. goods by those countries also may lead to volatility and instability in domestic and foreign markets.
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| Defiance COIN LightningSpread(TM) Income ETF | High Portfolio Turnover Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | High Portfolio Turnover Risk. The Fund may actively and frequently trade all or a significant portion of the Fund’s holdings. A high portfolio turnover rate increases transaction costs, which may increase the Fund’s expenses. Frequent trading may also cause adverse tax consequences for investors in the Fund due to an increase in short-term capital gains.
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| Defiance COIN LightningSpread(TM) Income ETF | Inflation Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Inflation Risk. Inflation risk is the risk that the value of assets or income from investments will be less in the future as inflation decreases the value of money. As inflation increases, the present value of the Fund’s assets and distributions, if any, may decline.
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| Defiance COIN LightningSpread(TM) Income ETF | Market Capitalization Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Market Capitalization Risk
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| Defiance COIN LightningSpread(TM) Income ETF | Large-Capitalization Investing [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Large-Capitalization Investing. The securities of large-capitalization companies may be relatively mature compared to smaller companies and therefore subject to slower growth during times of economic expansion. Large-capitalization companies may also be unable to respond quickly to new competitive challenges, such as changes in technology and consumer tastes.
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| Defiance COIN LightningSpread(TM) Income ETF | Money Market Instrument Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Money Market Instrument Risk. The Fund may use a variety of money market instruments for cash management purposes, including money market funds, depositary accounts and repurchase agreements. Repurchase agreements are contracts in which a seller of securities agrees to buy the securities back at a specified time and price. Repurchase agreements may be subject to market and credit risk related to the collateral securing the repurchase agreement. Money market instruments, including money market funds, may lose money through fees or other means.
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| Defiance COIN LightningSpread(TM) Income ETF | New Fund Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | New Fund Risk. The Fund is a recently organized management investment company with no operating history. As a result, prospective investors do not have a track record or history on which to base their investment decisions.
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| Defiance COIN LightningSpread(TM) Income ETF | Operational Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Operational Risk. The Fund is subject to risks arising from various operational factors, including, but not limited to, human error, processing and communication errors, errors of the Fund’s service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund relies on third-parties for a range of services, including custody. Any delay or failure relating to engaging or maintaining such service providers may affect the Fund’s ability to meet its investment objective. Although the Fund and Adviser seek to reduce these operational risks through controls and procedures, there is no way to completely protect against such risks.
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| Defiance COIN LightningSpread(TM) Income ETF | Tax Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Tax Risk. The Fund intends to elect and to qualify each year to be treated as a regulated investment company (a “RIC”) under Subchapter M of the Internal Revenue Code of 1986, as amended (“Code”). As a RIC, the Fund will not be subject to U.S. federal income tax on the portion of its net investment income and net capital gain that it distributes to shareholders, provided that it satisfies certain requirements of the Code. If the Fund does not qualify as a RIC for any taxable year and certain relief provisions are not available, the Fund’s taxable income will be subject to tax at the Fund level and to a further tax at the shareholder level when such income is distributed. To comply with the asset diversification test applicable to a RIC, the Fund will attempt to ensure that the value of swap contracts and options on shares of a single issuer does not exceed 25% of the Fund’s value at the close of any quarter. If the value of swap contracts and options on shares of a single issuer were to exceed 25% of the Fund’s total assets at the end of a tax quarter, the Fund, generally, has a grace period to cure such lack of compliance. If the Fund fails to timely cure, it may no longer be eligible to be treated as a RIC.
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| Defiance COIN LightningSpread(TM) Income ETF | U.S. Government and U.S. Agency Obligations Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | U.S. Government and U.S. Agency Obligations Risk. The Fund may invest in securities issued by the U.S. government or its agencies or instrumentalities. U.S. Government obligations include securities issued or guaranteed as to principal and interest by the U.S. Government, its agencies or instrumentalities, such as the U.S. Treasury. Payment of principal and interest on U.S. Government obligations may be backed by the full faith and credit of the United States or may be backed solely by the issuing or guaranteeing agency or instrumentality itself. In the latter case, the investor must look principally to the agency or instrumentality issuing or guaranteeing the obligation for ultimate repayment, which agency or instrumentality may be privately owned. There can be no assurance that the U.S. Government would provide financial support to its agencies or instrumentalities (including government-sponsored enterprises) where it is not obligated to do so.
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| Defiance COIN LightningSpread(TM) Income ETF | Coinbase Global, Inc. Risks [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Coinbase Global, Inc. Risks. The Fund invests in derivative instruments that are based on the value of COIN. This subjects the Fund to certain of the same risks as if it owned shares of COIN, even though it does not. By virtue of the Fund’s investments in derivative instruments that are based on the value of COIN, the Fund may also be subject to the following risks:
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| Defiance COIN LightningSpread(TM) Income ETF | Indirect Investment in Coinbase Global, Inc. Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Indirect Investment in Coinbase Global, Inc. Risk. Coinbase Global, Inc. is not affiliated with the Trust, the Fund, the Adviser, or their respective affiliates and is not involved with this offering in any way and has no obligation to consider your Shares in taking any corporate actions that might affect the value of Shares. Investors in the Fund will not have voting rights and will not be able to influence management of Coinbase Global, Inc. but will be exposed to the performance of COIN (the underlying stock). Investors in the Fund will not have rights to receive dividends or other distributions or any other rights with respect to the underlying stock but will be subject to declines in the performance of the underlying stock.
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| Defiance COIN LightningSpread(TM) Income ETF | COIN Trading Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | COIN Trading Risk. The trading price of COIN may be highly volatile and could continue to be subject to wide fluctuations in response to various factors. The stock market in general, and the market for technology companies in particular, has experienced extreme price and volume fluctuations that have often been unrelated or disproportionate to the operating performance of those companies. In particular, a large proportion of COIN may be traded by short sellers which may put pressure on the supply and demand for the common stock of Coinbase Global, Inc., further influencing volatility in its market price. Public perception and other factors outside of the control of Coinbase Global, Inc. may additionally impact COIN’s stock price due to Coinbase Global, Inc. garnering a disproportionate degree of public attention, regardless of actual operating performance. In addition, in the past, following periods of volatility in the overall market and the market price of a particular company’s securities, securities class action litigation has often been instituted against companies such as these. Moreover, stockholder litigation like this has been filed against Coinbase Global, Inc. in the past. While Coinbase Global, Inc. continues to defend such actions, any judgment against Coinbase Global, Inc., or any future stockholder litigation could result in substantial costs and a diversion of the management of Coinbase Global, Inc.’s attention and resources. If COIN trading is halted, trading in Shares of the Fund may be impacted, either temporarily or indefinitely.
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| Defiance COIN LightningSpread(TM) Income ETF | Coinbase Global, Inc. Performance Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Coinbase Global, Inc. Performance Risk. Coinbase Global, Inc. may fail to meet its publicly announced guidelines or other expectations about its business, which could cause the price of COIN to decline. Coinbase Global, Inc. provides guidance regarding its expected financial and business performance, such as projections regarding sales and production, as well as anticipated future revenues, gross margins, profitability and cash flows. Correctly identifying key factors affecting business conditions and predicting future events is inherently an uncertain process, and the guidance Coinbase Global, Inc. provides may not ultimately be accurate and has in the past been inaccurate in certain respects, such as the timing of new product manufacturing ramps. The guidance is based on certain assumptions such as those relating to global and local economic conditions, anticipated production and sales volumes (which generally are not linear throughout a given period), average sales prices, supplier and commodity costs, and planned cost reductions. If Coinbase Global, Inc.’s guidance is not accurate or varies from actual results due to its inability to meet the assumptions or the impact on its financial performance that could occur as a result of various risks and uncertainties, the market value of common stock issued by Coinbase Global, Inc. could decline significantly.
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| Defiance COIN LightningSpread(TM) Income ETF | Digital Assets Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Digital Assets Risk. Although the Fund does not directly invest in digital assets, it is exposed to their risks through options contracts referencing COIN. Digital asset technologies are highly disruptive and uncertain, and rapid technological advances may render existing assets obsolete. Additionally, intellectual property disputes among digital asset companies may undermine confidence in their viability. Digital asset marketplaces are often unregulated and may shut down due to fraud, security breaches, technical failures, or external attacks. These assets are typically stored in digital wallets, accessible only via private keys—if lost or stolen, the assets may be irretrievable. Digital assets also face manipulation risks and reliance on third-party products with potential vulnerabilities. Historically, digital assets have exhibited extreme price volatility and may become highly illiquid in stressed markets. Their value is not necessarily correlated to traditional economic or market forces, and demand for a digital asset could collapse, potentially driving its value to zero.
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| Defiance COIN LightningSpread(TM) Income ETF | Financials Companies Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Financials Companies Risk. Financial companies, such as retail and commercial banks, brokerage firms, insurance companies and financial services companies, are especially subject to the adverse effects of economic recession, currency exchange rates, extensive government regulation, decreases in the availability of capital, volatile interest rates, portfolio concentrations in geographic markets, industries or products (such as commercial and residential real estate loans) and competition from new entrants and blurred distinctions in their fields of business. The extent to which the Fund may invest in a company that engages in securities-related activities or banking is limited by applicable law. Governmental regulation may change frequently and may have significant adverse consequences for companies in the financials sector, including effects not intended by such regulation. The impact of changes in capital requirements, or recent or future regulation, on any financial company or on the financials sector as a whole cannot be predicted. The financials sector can be a target or cyberattacks, and may experience technology malfunctions and disruptions. These risks may be amplified for companies that operate online and digital platforms. In recent years, cyberattacks and technology malfunctions and failures have become increasingly frequent in this sector and have reportedly caused losses to companies in this sector.
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| Defiance COIN LightningSpread(TM) Income ETF | Blockchain Related Company Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Blockchain Related Company Risk. The performance of COIN, and consequently the Fund, is subject to risks associated with blockchain-related companies. Blockchain is a decentralized digital ledger that records cryptocurrency transactions, but its applications remain largely untested. Companies in this sector face volatile adoption rates, intense competition, and potential product obsolescence. Their financial performance is often tied to fluctuations in digital asset prices. Many blockchain companies operate with limited regulatory oversight, but stricter regulations could increase costs, restrict business activities, or even lead to prohibitions. Conversely, clearer regulations may benefit some companies. Additionally, blockchain firms store sensitive consumer data, making them targets for cybersecurity threats and theft. Loss or compromise of cryptographic keys could also result in irreversible asset losses.
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| Defiance COIN LightningSpread(TM) Income ETF | Risk Lose Money [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | The Fund may not achieve its investment objective and there is a risk that you could lose all of your money invested in the Fund. | ||||||||||||||||||||||||
| Defiance COIN LightningSpread(TM) Income ETF | Risk Nondiversified Status [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Non-Diversification Risk. Because the Fund is “non-diversified,” it may invest a greater percentage of its assets in the securities of a single issuer or a smaller number of issuers than if it was a diversified fund. As a result, a decline in the value of an investment in a single issuer or a smaller number of issuers could cause the Fund’s overall value to decline to a greater degree than if the Fund held a more diversified portfolio.
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| Defiance FcBk LightningSpread(TM) Income ETF | Derivatives Risks [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Derivatives Risks. Derivatives are financial instruments that derive value from the underlying reference asset or assets, such as stocks, bonds, or funds (including ETFs), interest rates or indexes. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other ordinary investments, including risk related to the market, imperfect correlation with underlying investments or the Fund’s other portfolio holdings, higher price volatility, lack of availability, counterparty risk, liquidity, valuation and legal restrictions. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with ordinary portfolio securities transactions. The use of derivatives may result in larger losses or smaller gains than directly investing in securities. When the Fund uses derivatives, there may be an imperfect correlation between the value of the underlying reference asset and the derivative, which may prevent the Fund from achieving its investment objective. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of those amounts initially invested. In addition, the Fund’s investments in derivatives are subject to the following risks:
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| Defiance FcBk LightningSpread(TM) Income ETF | Options Contracts [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
Although the Fund may use options to provide synthetic exposure to the Underlying Security, option prices may not perfectly replicate the rate of change of the Underlying Security prior to expiration, resulting in potential tracking differences. Similarly, the premiums received from selling put spreads are influenced by market volatility and the specific strike prices selected, which can vary based on market conditions.
The Fund may experience downside risk from certain options positions, including the potential for purchased options to expire worthless, resulting in the loss of premiums paid. Writing (selling) options also exposes the Fund to risk of loss, which may exceed the premiums received. For example, selling put options exposes the Fund to the risk that the price of the Underlying Security declines below the strike price, potentially resulting in substantial losses. Selling put spreads limits these losses to the difference between the strike prices of the sold and purchased puts, less the net premium received, but does not eliminate risk.
The Fund may encounter challenges in managing written options positions, particularly in volatile or illiquid markets, where closing or adjusting positions may be difficult or costly. Additionally, the process of rolling options positions, replacing expiring options with new contracts to maintain exposure, can involve significant transaction costs and expose the Fund to additional risks, such as adverse price movements during the roll period or reduced liquidity in the desired contracts. The Fund may also face margin requirements associated with written options, which could require the Fund to liquidate other assets to meet these obligations, potentially at unfavorable prices. Collectively, these risks may result in losses or reduced investment efficiency for the Fund.
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| Defiance FcBk LightningSpread(TM) Income ETF | Swap Agreements [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
The swap agreements in which the Fund invests are generally traded in the over-the-counter market, which generally has less transparency than exchange-traded derivative instruments. In a standard swap transaction, two parties agree to exchange the return (or differentials in rates of return) earned or realized on particular predetermined reference assets, securities, or instruments. The gross return to be exchanged or “swapped” between the parties is calculated based on a notional amount or the return on or change in value of a particular dollar amount invested in the reference asset.
If the Underlying Security experiences a significant price movement that causes a material change in the Fund’s net assets, the terms of a swap agreement between the Fund and its counterparty may permit the counterparty to close out the swap transaction with the Fund. In that event, the Fund may be unable to enter into another swap agreement or invest in other derivatives to maintain exposure consistent with its investment objective. This may temporarily reduce the Fund’s ability to maintain its intended level of synthetic exposure until replacement transactions can be established.
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| Defiance FcBk LightningSpread(TM) Income ETF | Counterparty Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Counterparty Risk. The Fund is subject to counterparty risk by virtue of its investments in options contracts. Transactions in some types of derivatives, including options, are required to be centrally cleared (“cleared derivatives”). In a transaction involving cleared derivatives, the Fund’s counterparty is a clearing house rather than a bank or broker. Since the Fund is not a member of clearing houses and only members of a clearing house (“clearing members”) can participate directly in the clearing house, the Fund will hold cleared derivatives through accounts at clearing members. In cleared derivatives positions, the Fund will make payments (including margin payments) to and receive payments from a clearing house through their accounts at clearing members. Customer funds held at a clearing organization in connection with any options contracts are held in a commingled omnibus account and are not identified to the name of the clearing member’s individual customers. As a result, assets deposited by the Fund with any clearing member as margin for options may, in certain circumstances, be used to satisfy losses of other clients of the Fund’s clearing member. In addition, although clearing members guarantee performance of their clients’ obligations to the clearing house, there is a risk that the assets of the Fund might not be fully protected in the event of the clearing member’s bankruptcy, as the Fund would be limited to recovering only a pro rata share of all available funds segregated on behalf of the clearing member’s customers for the relevant account class. The Fund is also subject to the risk that a limited number of clearing members are willing to transact on the Fund’s behalf, which heightens the risks associated with a clearing member’s default. This risk is greater for the Fund as it seeks to hold options contracts on a single security, and not a broader range of options contracts, which may limit the number of clearing members that are willing to transact on the Fund’s behalf. If a clearing member defaults the Fund could lose some or all of the benefits of a transaction entered into by the Fund with the clearing member. If the Fund cannot find a clearing member to transact with on the Fund’s behalf, the Fund may be unable to effectively implement its investment strategy.
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| Defiance FcBk LightningSpread(TM) Income ETF | Distribution Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Distribution Risk. As part of the Fund’s investment objective, the Fund seeks to provide current income twice weekly. There is no assurance that the Fund will make more than one, or any, distribution in a given week. If the Fund does make distributions, the amounts of such distributions will likely vary greatly from one distribution to the next.
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| Defiance FcBk LightningSpread(TM) Income ETF | NAV Erosion Risk Due to Distributions [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
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| Defiance FcBk LightningSpread(TM) Income ETF | Equity Market Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Equity Market Risk. Common stocks are generally exposed to greater risk than other types of securities, such as preferred stock and debt obligations, because common stockholders generally have inferior rights to receive payment from specific issuers. The equity securities held in the Fund’s portfolio may experience sudden, unpredictable drops in value or long periods of decline in value. This may occur because of factors that affect securities markets generally or factors affecting specific issuers, industries, or sectors in which the Fund invests. Common stocks, such as those held by the Fund, are generally exposed to greater risk than other types of securities, such as preferred stock and debt obligations, because common stockholders generally have inferior rights to receive payment from issuers.
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| Defiance FcBk LightningSpread(TM) Income ETF | Concentration Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Concentration Risk. The Fund’s investment exposure will be concentrated in (or substantially exposed to) the same industry or group of industries assigned to the Underlying Security. As a result, the Fund may be more susceptible to loss due to adverse occurrences that affect the price of such industries more than the market as a whole.
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| Defiance FcBk LightningSpread(TM) Income ETF | ETF Risks [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | ETF Risks
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| Defiance FcBk LightningSpread(TM) Income ETF | Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that are authorized to purchase and redeem Shares directly from the Fund (known as “Authorized Participants” or “APs”). In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services; or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
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| Defiance FcBk LightningSpread(TM) Income ETF | Cash Redemption Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Cash Redemption Risk. The Fund’s investment strategy may require it to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. For example, the Fund may not be able to redeem in-kind certain securities held by the Fund (e.g., derivative instruments). In such a case, the Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used. By paying out higher annual capital gain distributions, investors may be subjected to increased capital gains taxes. Additionally, there may be brokerage costs or taxable gains or losses that may be imposed on the Fund in connection with a cash redemption that may not have occurred if the Fund had made a redemption in-kind. These costs could decrease the value of the Fund to the extent they are not offset by a transaction fee payable by an AP.
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| Defiance FcBk LightningSpread(TM) Income ETF | Costs of Buying or Selling Shares [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
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| Defiance FcBk LightningSpread(TM) Income ETF | Shares May Trade at Prices Other Than NAV [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
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| Defiance FcBk LightningSpread(TM) Income ETF | Trading [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Trading. Although Shares are listed on a national securities exchange, such as Cboe BZX Exchange, Inc. (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that an active trading market for the Shares will develop or be maintained or that the Shares will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Shares. Shares trade on the Exchange at market price that may be below, at or above the Fund’s NAV. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable. In addition, trading in Shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange “circuit breaker” rules. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged. As a result, the Fund could be adversely affected and be unable to implement its investment strategies in the event of an unscheduled closing.
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| Defiance FcBk LightningSpread(TM) Income ETF | Economic and Market Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Economic and Market Risk. Economies and financial markets throughout the world are becoming increasingly interconnected, which increases the likelihood that events or conditions in one country or region will adversely impact markets or issuers in other countries or regions. Securities in the Fund’s portfolio may underperform in comparison to securities in the general financial markets, a particular financial market, or other asset classes, due to a number of factors, including inflation (or expectations for inflation), deflation (or expectations for deflation), interest rates, global demand for particular products or resources, market instability, financial system instability, debt crises and downgrades, embargoes, tariffs, sanctions and other trade barriers, regulatory events, other governmental trade or market control programs and related geopolitical events. In addition, the value of the Fund’s investments may be negatively affected by the occurrence of global events such as war, terrorism, environmental disasters, natural disasters or events, country instability, and infectious disease epidemics or pandemics. The imposition by the U.S. of tariffs on goods imported from foreign countries and reciprocal tariffs levied on U.S. goods by those countries also may lead to volatility and instability in domestic and foreign markets.
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| Defiance FcBk LightningSpread(TM) Income ETF | High Portfolio Turnover Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | High Portfolio Turnover Risk. The Fund may actively and frequently trade all or a significant portion of the Fund’s holdings. A high portfolio turnover rate increases transaction costs, which may increase the Fund’s expenses. Frequent trading may also cause adverse tax consequences for investors in the Fund due to an increase in short-term capital gains.
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| Defiance FcBk LightningSpread(TM) Income ETF | Inflation Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Inflation Risk. Inflation risk is the risk that the value of assets or income from investments will be less in the future as inflation decreases the value of money. As inflation increases, the present value of the Fund’s assets and distributions, if any, may decline.
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| Defiance FcBk LightningSpread(TM) Income ETF | Market Capitalization Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Market Capitalization Risk
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| Defiance FcBk LightningSpread(TM) Income ETF | Large-Capitalization Investing [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Large-Capitalization Investing. The securities of large-capitalization companies may be relatively mature compared to smaller companies and therefore subject to slower growth during times of economic expansion. Large-capitalization companies may also be unable to respond quickly to new competitive challenges, such as changes in technology and consumer tastes.
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| Defiance FcBk LightningSpread(TM) Income ETF | Money Market Instrument Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Money Market Instrument Risk. The Fund may use a variety of money market instruments for cash management purposes, including money market funds, depositary accounts and repurchase agreements. Repurchase agreements are contracts in which a seller of securities agrees to buy the securities back at a specified time and price. Repurchase agreements may be subject to market and credit risk related to the collateral securing the repurchase agreement. Money market instruments, including money market funds, may lose money through fees or other means.
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| Defiance FcBk LightningSpread(TM) Income ETF | New Fund Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | New Fund Risk. The Fund is a recently organized management investment company with no operating history. As a result, prospective investors do not have a track record or history on which to base their investment decisions.
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| Defiance FcBk LightningSpread(TM) Income ETF | Operational Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Operational Risk. The Fund is subject to risks arising from various operational factors, including, but not limited to, human error, processing and communication errors, errors of the Fund’s service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund relies on third-parties for a range of services, including custody. Any delay or failure relating to engaging or maintaining such service providers may affect the Fund’s ability to meet its investment objective. Although the Fund and Adviser seek to reduce these operational risks through controls and procedures, there is no way to completely protect against such risks.
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| Defiance FcBk LightningSpread(TM) Income ETF | Tax Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Tax Risk. The Fund intends to elect and to qualify each year to be treated as a regulated investment company (a “RIC”) under Subchapter M of the Internal Revenue Code of 1986, as amended (“Code”). As a RIC, the Fund will not be subject to U.S. federal income tax on the portion of its net investment income and net capital gain that it distributes to shareholders, provided that it satisfies certain requirements of the Code. If the Fund does not qualify as a RIC for any taxable year and certain relief provisions are not available, the Fund’s taxable income will be subject to tax at the Fund level and to a further tax at the shareholder level when such income is distributed. To comply with the asset diversification test applicable to a RIC, the Fund will attempt to ensure that the value of swap contracts and options on shares of a single issuer does not exceed 25% of the Fund’s value at the close of any quarter. If the value of swap contracts and options on shares of a single issuer were to exceed 25% of the Fund’s total assets at the end of a tax quarter, the Fund, generally, has a grace period to cure such lack of compliance. If the Fund fails to timely cure, it may no longer be eligible to be treated as a RIC.
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| Defiance FcBk LightningSpread(TM) Income ETF | U.S. Government and U.S. Agency Obligations Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | U.S. Government and U.S. Agency Obligations Risk. The Fund may invest in securities issued by the U.S. government or its agencies or instrumentalities. U.S. Government obligations include securities issued or guaranteed as to principal and interest by the U.S. Government, its agencies or instrumentalities, such as the U.S. Treasury. Payment of principal and interest on U.S. Government obligations may be backed by the full faith and credit of the United States or may be backed solely by the issuing or guaranteeing agency or instrumentality itself. In the latter case, the investor must look principally to the agency or instrumentality issuing or guaranteeing the obligation for ultimate repayment, which agency or instrumentality may be privately owned. There can be no assurance that the U.S. Government would provide financial support to its agencies or instrumentalities (including government-sponsored enterprises) where it is not obligated to do so.
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| Defiance FcBk LightningSpread(TM) Income ETF | Meta Platforms, Inc. Risks [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Meta Platforms, Inc. Risks. The Fund invests in derivative instruments that are based on the value of META. This subjects the Fund to certain of the same risks as if it owned shares of META, even though it does not. By virtue of the Fund’s investments in derivative instruments that are based on the value of META, the Fund may also be subject to the following risks:
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| Defiance FcBk LightningSpread(TM) Income ETF | Indirect Investment in Meta Platforms, Inc. [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Indirect Investment in Meta Platforms, Inc. Risk. Meta Platforms, Inc. is not affiliated with the Trust, the Fund, the Adviser, or their respective affiliates and is not involved with this offering in any way and has no obligation to consider your Shares in taking any corporate actions that might affect the value of Shares. Investors in the Fund will not have voting rights and will not be able to influence management of Meta Platforms, Inc. but will be exposed to the performance of META (the underlying stock). Investors in the Fund will not have rights to receive dividends or other distributions or any other rights with respect to the underlying stock but will be subject to declines in the performance of the underlying stock.
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| Defiance FcBk LightningSpread(TM) Income ETF | META Trading Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | META Trading Risk. The trading price of META may be highly volatile and could continue to be subject to wide fluctuations in response to various factors. The stock market in general, and the market for technology companies in particular, has experienced extreme price and volume fluctuations that have often been unrelated or disproportionate to the operating performance of those companies. In particular, a large proportion of META may be traded by short sellers which may put pressure on the supply and demand for the common stock of Meta Platforms, Inc., further influencing volatility in its market price. Public perception and other factors outside of the control of Meta Platforms, Inc. may additionally impact META’s stock price due to Meta Platforms, Inc. garnering a disproportionate degree of public attention, regardless of actual operating performance. In addition, in the past, following periods of volatility in the overall market and the market price of a particular company’s securities, securities class action litigation has often been instituted against companies such as these. Moreover, stockholder litigation like this has been filed against Meta Platforms, Inc. in the past. While Meta Platforms, Inc. continues to defend such actions, any judgment against Meta Platforms, Inc., or any future stockholder litigation could result in substantial costs and a diversion of the management of Meta Platforms, Inc.’s attention and resources. If META trading is halted, trading in Shares of the Fund may be impacted, either temporarily or indefinitely.
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| Defiance FcBk LightningSpread(TM) Income ETF | Meta Platforms, Inc. Performance Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Meta Platforms, Inc. Performance Risk. Meta Platforms, Inc. may fail to meet its publicly announced guidelines or other expectations about its business, which could cause the price of META to decline. Meta Platforms, Inc. provides guidance regarding its expected financial and business performance, such as projections regarding sales and production, as well as anticipated future revenues, gross margins, profitability and cash flows. Correctly identifying key factors affecting business conditions and predicting future events is inherently an uncertain process, and the guidance Meta Platforms, Inc. provides may not ultimately be accurate and has in the past been inaccurate in certain respects, such as the timing of new product manufacturing ramps. The guidance is based on certain assumptions such as those relating to global and local economic conditions, anticipated production and sales volumes (which generally are not linear throughout a given period), average sales prices, supplier and commodity costs, and planned cost reductions. If Meta Platforms, Inc.’s guidance is not accurate or varies from actual results due to its inability to meet the assumptions or the impact on its financial performance that could occur as a result of various risks and uncertainties, the market value of common stock issued by Meta Platforms, Inc. could decline significantly.
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| Defiance FcBk LightningSpread(TM) Income ETF | Communication Services Sector Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Communication Services Sector Risk. Communication services companies may be subject to specific risks associated with legislative or regulatory changes, adverse market conditions, intellectual property use and/or increased competition. Communication services companies are particularly vulnerable to rapid advancements in technology, the innovation of competitors, rapid product obsolescence and government regulation and competition, both domestically and internationally. Additionally, fluctuating domestic and international demand, shifting demographics and often unpredictable changes in consumer tastes can drastically affect a communication services company’s profitability. While all companies may be susceptible to network security breaches, certain communication services companies may be particular targets of hacking and potential theft of proprietary or consumer information or disruptions in service, which could have a material adverse effect on their businesses.
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| Defiance FcBk LightningSpread(TM) Income ETF | Risk Lose Money [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | The Fund may not achieve its investment objective and there is a risk that you could lose all of your money invested in the Fund. | ||||||||||||||||||||||||
| Defiance FcBk LightningSpread(TM) Income ETF | Risk Nondiversified Status [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Non-Diversification Risk. Because the Fund is “non-diversified,” it may invest a greater percentage of its assets in the securities of a single issuer or a smaller number of issuers than if it was a diversified fund. As a result, a decline in the value of an investment in a single issuer or a smaller number of issuers could cause the Fund’s overall value to decline to a greater degree than if the Fund held a more diversified portfolio.
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| Defiance MSTR LightningSpread(TM) Income ETF | Derivatives Risks [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Derivatives Risks. Derivatives are financial instruments that derive value from the underlying reference asset or assets, such as stocks, bonds, or funds (including ETFs), interest rates or indexes. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other ordinary investments, including risk related to the market, imperfect correlation with underlying investments or the Fund’s other portfolio holdings, higher price volatility, lack of availability, counterparty risk, liquidity, valuation and legal restrictions. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with ordinary portfolio securities transactions. The use of derivatives may result in larger losses or smaller gains than directly investing in securities. When the Fund uses derivatives, there may be an imperfect correlation between the value of the underlying reference asset and the derivative, which may prevent the Fund from achieving its investment objective. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of those amounts initially invested. In addition, the Fund’s investments in derivatives are subject to the following risks:
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| Defiance MSTR LightningSpread(TM) Income ETF | Options Contracts [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
Although the Fund may use options to provide synthetic exposure to the Underlying Security, option prices may not perfectly replicate the rate of change of the Underlying Security prior to expiration, resulting in potential tracking differences. Similarly, the premiums received from selling put spreads are influenced by market volatility and the specific strike prices selected, which can vary based on market conditions.
The Fund may experience downside risk from certain options positions, including the potential for purchased options to expire worthless, resulting in the loss of premiums paid. Writing (selling) options also exposes the Fund to risk of loss, which may exceed the premiums received. For example, selling put options exposes the Fund to the risk that the price of the Underlying Security declines below the strike price, potentially resulting in substantial losses. Selling put spreads limits these losses to the difference between the strike prices of the sold and purchased puts, less the net premium received, but does not eliminate risk.
The Fund may encounter challenges in managing written options positions, particularly in volatile or illiquid markets, where closing or adjusting positions may be difficult or costly. Additionally, the process of rolling options positions, replacing expiring options with new contracts to maintain exposure, can involve significant transaction costs and expose the Fund to additional risks, such as adverse price movements during the roll period or reduced liquidity in the desired contracts. The Fund may also face margin requirements associated with written options, which could require the Fund to liquidate other assets to meet these obligations, potentially at unfavorable prices. Collectively, these risks may result in losses or reduced investment efficiency for the Fund.
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| Defiance MSTR LightningSpread(TM) Income ETF | Swap Agreements [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
The swap agreements in which the Fund invests are generally traded in the over-the-counter market, which generally has less transparency than exchange-traded derivative instruments. In a standard swap transaction, two parties agree to exchange the return (or differentials in rates of return) earned or realized on particular predetermined reference assets, securities, or instruments. The gross return to be exchanged or “swapped” between the parties is calculated based on a notional amount or the return on or change in value of a particular dollar amount invested in the reference asset.
If the Underlying Security experiences a significant price movement that causes a material change in the Fund’s net assets, the terms of a swap agreement between the Fund and its counterparty may permit the counterparty to close out the swap transaction with the Fund. In that event, the Fund may be unable to enter into another swap agreement or invest in other derivatives to maintain exposure consistent with its investment objective. This may temporarily reduce the Fund’s ability to maintain its intended level of synthetic exposure until replacement transactions can be established.
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| Defiance MSTR LightningSpread(TM) Income ETF | Counterparty Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Counterparty Risk. The Fund is subject to counterparty risk by virtue of its investments in options contracts. Transactions in some types of derivatives, including options, are required to be centrally cleared (“cleared derivatives”). In a transaction involving cleared derivatives, the Fund’s counterparty is a clearing house rather than a bank or broker. Since the Fund is not a member of clearing houses and only members of a clearing house (“clearing members”) can participate directly in the clearing house, the Fund will hold cleared derivatives through accounts at clearing members. In cleared derivatives positions, the Fund will make payments (including margin payments) to and receive payments from a clearing house through their accounts at clearing members. Customer funds held at a clearing organization in connection with any options contracts are held in a commingled omnibus account and are not identified to the name of the clearing member’s individual customers. As a result, assets deposited by the Fund with any clearing member as margin for options may, in certain circumstances, be used to satisfy losses of other clients of the Fund’s clearing member. In addition, although clearing members guarantee performance of their clients’ obligations to the clearing house, there is a risk that the assets of the Fund might not be fully protected in the event of the clearing member’s bankruptcy, as the Fund would be limited to recovering only a pro rata share of all available funds segregated on behalf of the clearing member’s customers for the relevant account class. The Fund is also subject to the risk that a limited number of clearing members are willing to transact on the Fund’s behalf, which heightens the risks associated with a clearing member’s default. This risk is greater for the Fund as it seeks to hold options contracts on a single security, and not a broader range of options contracts, which may limit the number of clearing members that are willing to transact on the Fund’s behalf. If a clearing member defaults the Fund could lose some or all of the benefits of a transaction entered into by the Fund with the clearing member. If the Fund cannot find a clearing member to transact with on the Fund’s behalf, the Fund may be unable to effectively implement its investment strategy.
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| Defiance MSTR LightningSpread(TM) Income ETF | Distribution Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Distribution Risk. As part of the Fund’s investment objective, the Fund seeks to provide current income twice weekly. There is no assurance that the Fund will make more than one, or any, distribution in a given week. If the Fund does make distributions, the amounts of such distributions will likely vary greatly from one distribution to the next.
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| Defiance MSTR LightningSpread(TM) Income ETF | NAV Erosion Risk Due to Distributions [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
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| Defiance MSTR LightningSpread(TM) Income ETF | Equity Market Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Equity Market Risk. Common stocks are generally exposed to greater risk than other types of securities, such as preferred stock and debt obligations, because common stockholders generally have inferior rights to receive payment from specific issuers. The equity securities held in the Fund’s portfolio may experience sudden, unpredictable drops in value or long periods of decline in value. This may occur because of factors that affect securities markets generally or factors affecting specific issuers, industries, or sectors in which the Fund invests. Common stocks, such as those held by the Fund, are generally exposed to greater risk than other types of securities, such as preferred stock and debt obligations, because common stockholders generally have inferior rights to receive payment from issuers.
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| Defiance MSTR LightningSpread(TM) Income ETF | Concentration Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Concentration Risk. The Fund’s investment exposure will be concentrated in (or substantially exposed to) the same industry or group of industries assigned to the Underlying Security. As a result, the Fund may be more susceptible to loss due to adverse occurrences that affect the price of such industries more than the market as a whole.
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| Defiance MSTR LightningSpread(TM) Income ETF | ETF Risks [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | ETF Risks
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| Defiance MSTR LightningSpread(TM) Income ETF | Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that are authorized to purchase and redeem Shares directly from the Fund (known as “Authorized Participants” or “APs”). In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services; or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
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| Defiance MSTR LightningSpread(TM) Income ETF | Cash Redemption Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Cash Redemption Risk. The Fund’s investment strategy may require it to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. For example, the Fund may not be able to redeem in-kind certain securities held by the Fund (e.g., derivative instruments). In such a case, the Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used. By paying out higher annual capital gain distributions, investors may be subjected to increased capital gains taxes. Additionally, there may be brokerage costs or taxable gains or losses that may be imposed on the Fund in connection with a cash redemption that may not have occurred if the Fund had made a redemption in-kind. These costs could decrease the value of the Fund to the extent they are not offset by a transaction fee payable by an AP.
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| Defiance MSTR LightningSpread(TM) Income ETF | Costs of Buying or Selling Shares [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
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| Defiance MSTR LightningSpread(TM) Income ETF | Shares May Trade at Prices Other Than NAV [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
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| Defiance MSTR LightningSpread(TM) Income ETF | Trading [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Trading. Although Shares are listed on a national securities exchange, such as Cboe BZX Exchange, Inc. (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that an active trading market for the Shares will develop or be maintained or that the Shares will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Shares. Shares trade on the Exchange at market price that may be below, at or above the Fund’s NAV. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable. In addition, trading in Shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange “circuit breaker” rules. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged. As a result, the Fund could be adversely affected and be unable to implement its investment strategies in the event of an unscheduled closing.
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| Defiance MSTR LightningSpread(TM) Income ETF | Economic and Market Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Economic and Market Risk. Economies and financial markets throughout the world are becoming increasingly interconnected, which increases the likelihood that events or conditions in one country or region will adversely impact markets or issuers in other countries or regions. Securities in the Fund’s portfolio may underperform in comparison to securities in the general financial markets, a particular financial market, or other asset classes, due to a number of factors, including inflation (or expectations for inflation), deflation (or expectations for deflation), interest rates, global demand for particular products or resources, market instability, financial system instability, debt crises and downgrades, embargoes, tariffs, sanctions and other trade barriers, regulatory events, other governmental trade or market control programs and related geopolitical events. In addition, the value of the Fund’s investments may be negatively affected by the occurrence of global events such as war, terrorism, environmental disasters, natural disasters or events, country instability, and infectious disease epidemics or pandemics. The imposition by the U.S. of tariffs on goods imported from foreign countries and reciprocal tariffs levied on U.S. goods by those countries also may lead to volatility and instability in domestic and foreign markets.
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| Defiance MSTR LightningSpread(TM) Income ETF | High Portfolio Turnover Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | High Portfolio Turnover Risk. The Fund may actively and frequently trade all or a significant portion of the Fund’s holdings. A high portfolio turnover rate increases transaction costs, which may increase the Fund’s expenses. Frequent trading may also cause adverse tax consequences for investors in the Fund due to an increase in short-term capital gains.
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| Defiance MSTR LightningSpread(TM) Income ETF | Inflation Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Inflation Risk. Inflation risk is the risk that the value of assets or income from investments will be less in the future as inflation decreases the value of money. As inflation increases, the present value of the Fund’s assets and distributions, if any, may decline.
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| Defiance MSTR LightningSpread(TM) Income ETF | Market Capitalization Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Market Capitalization Risk
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| Defiance MSTR LightningSpread(TM) Income ETF | Large-Capitalization Investing [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Large-Capitalization Investing. The securities of large-capitalization companies may be relatively mature compared to smaller companies and therefore subject to slower growth during times of economic expansion. Large-capitalization companies may also be unable to respond quickly to new competitive challenges, such as changes in technology and consumer tastes.
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| Defiance MSTR LightningSpread(TM) Income ETF | Money Market Instrument Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Money Market Instrument Risk. The Fund may use a variety of money market instruments for cash management purposes, including money market funds, depositary accounts and repurchase agreements. Repurchase agreements are contracts in which a seller of securities agrees to buy the securities back at a specified time and price. Repurchase agreements may be subject to market and credit risk related to the collateral securing the repurchase agreement. Money market instruments, including money market funds, may lose money through fees or other means.
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| Defiance MSTR LightningSpread(TM) Income ETF | New Fund Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | New Fund Risk. The Fund is a recently organized management investment company with no operating history. As a result, prospective investors do not have a track record or history on which to base their investment decisions.
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| Defiance MSTR LightningSpread(TM) Income ETF | Operational Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Operational Risk. The Fund is subject to risks arising from various operational factors, including, but not limited to, human error, processing and communication errors, errors of the Fund’s service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund relies on third-parties for a range of services, including custody. Any delay or failure relating to engaging or maintaining such service providers may affect the Fund’s ability to meet its investment objective. Although the Fund and Adviser seek to reduce these operational risks through controls and procedures, there is no way to completely protect against such risks.
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| Defiance MSTR LightningSpread(TM) Income ETF | Tax Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Tax Risk. The Fund intends to elect and to qualify each year to be treated as a regulated investment company (a “RIC”) under Subchapter M of the Internal Revenue Code of 1986, as amended (“Code”). As a RIC, the Fund will not be subject to U.S. federal income tax on the portion of its net investment income and net capital gain that it distributes to shareholders, provided that it satisfies certain requirements of the Code. If the Fund does not qualify as a RIC for any taxable year and certain relief provisions are not available, the Fund’s taxable income will be subject to tax at the Fund level and to a further tax at the shareholder level when such income is distributed. To comply with the asset diversification test applicable to a RIC, the Fund will attempt to ensure that the value of swap contracts and options on shares of a single issuer does not exceed 25% of the Fund’s value at the close of any quarter. If the value of swap contracts and options on shares of a single issuer were to exceed 25% of the Fund’s total assets at the end of a tax quarter, the Fund, generally, has a grace period to cure such lack of compliance. If the Fund fails to timely cure, it may no longer be eligible to be treated as a RIC.
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| Defiance MSTR LightningSpread(TM) Income ETF | U.S. Government and U.S. Agency Obligations Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | U.S. Government and U.S. Agency Obligations Risk. The Fund may invest in securities issued by the U.S. government or its agencies or instrumentalities. U.S. Government obligations include securities issued or guaranteed as to principal and interest by the U.S. Government, its agencies or instrumentalities, such as the U.S. Treasury. Payment of principal and interest on U.S. Government obligations may be backed by the full faith and credit of the United States or may be backed solely by the issuing or guaranteeing agency or instrumentality itself. In the latter case, the investor must look principally to the agency or instrumentality issuing or guaranteeing the obligation for ultimate repayment, which agency or instrumentality may be privately owned. There can be no assurance that the U.S. Government would provide financial support to its agencies or instrumentalities (including government-sponsored enterprises) where it is not obligated to do so.
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| Defiance MSTR LightningSpread(TM) Income ETF | Software Industry Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Software Industry Risk. The software industry can be significantly affected by intense competition, aggressive pricing, technological innovations, and product obsolescence. Companies in the software industry are subject to significant competitive pressures, such as aggressive pricing, new market entrants, competition for market share, short product cycles due to an accelerated rate of technological developments and the potential for limited earnings and/or falling profit margins. These companies also face the risks that new services, equipment or technologies will not be accepted by consumers and businesses or will become rapidly obsolete. These factors can affect the profitability of these companies and, as a result, the value of their securities. Also, patent protection is integral to the success of many companies in this industry, and profitability can be affected materially by, among other things, the cost of obtaining (or failing to obtain) patent approvals, the cost of litigating patent infringement and the loss of patent protection for products (which significantly increases pricing pressures and can materially reduce profitability with respect to such products). In addition, many software companies have limited operating histories. Prices of these companies’ securities historically have been more volatile than other securities, especially over the short term.
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| Defiance MSTR LightningSpread(TM) Income ETF | MSTR Risks [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | MSTR Risks. The Fund invests in options contracts that are based on the value of MSTR. This subjects the Fund to certain of the same risks as if it owned shares of MSTR, even though it does not. By virtue of the Fund’s investments in options contracts that are based on the value of MSTR, the Fund may also be subject to the following risks:
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| Defiance MSTR LightningSpread(TM) Income ETF | Indirect Investment in MSTR Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Indirect Investment in MSTR Risk. MSTR is not affiliated with the Trust, the Fund, the Adviser, the Sub-Adviser, or their respective affiliates and is not involved with this offering in any way and has no obligation to consider your Shares in taking any corporate actions that might affect the value of Shares. Investors in the Fund will not have voting rights and will not be able to influence management of MSTR but will be exposed to the performance of MSTR (the underlying stock). Investors in the Fund will not have rights to receive dividends or other distributions or any other rights with respect to the underlying stock but will be subject to declines in the performance of the underlying stock.
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| Defiance MSTR LightningSpread(TM) Income ETF | MSTR Trading Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | MSTR Trading Risk. The trading price of MSTR may be highly volatile and could continue to be subject to wide fluctuations in response to various factors. The stock market in general, and the market for technology companies in particular, has experienced extreme price and volume fluctuations that have often been unrelated or disproportionate to the operating performance of those companies. In particular, a large proportion of MSTR may be traded by short sellers which may put pressure on the supply and demand for the common stock of MSTR, further influencing volatility in its market price. Public perception and other factors outside of the control of MSTR may additionally impact MSTR’s share price due to MSTR garnering a disproportionate degree of public attention, regardless of actual operating performance. In addition, in the past, following periods of volatility in the overall market and the market price of a particular company’s securities, securities class action litigation has often been instituted against companies such as these. Moreover, stockholder litigation like this has been filed against MSTR in the past. While MSTR continues to defend such actions, any judgment against MSTR, or any future stockholder litigation could result in substantial costs and a diversion of the management of MSTR’s attention and resources. If MSTR trading is halted, trading in Shares of the Fund may be impacted, either temporarily or indefinitely.
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| Defiance MSTR LightningSpread(TM) Income ETF | MSTR Performance Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | MSTR Performance Risk. MSTR may fail to meet its publicly announced guidelines or other expectations about its business, which could cause the price of MSTR to decline. MSTR provides guidance regarding its expected financial and business performance, such as projections regarding sales and production, as well as anticipated future revenues, gross margins, profitability and cash flows. Correctly identifying key factors affecting business conditions and predicting future events is inherently an uncertain process, and the guidance MSTR provides may not ultimately be accurate and has in the past been inaccurate in certain respects, such as the timing of new product manufacturing ramps. The guidance is based on certain assumptions such as those relating to global and local economic conditions, anticipated production and sales volumes (which generally are not linear throughout a given period), average sales prices, supplier and commodity costs, and planned cost reductions. If MSTR’s guidance is not accurate or varies from actual results due to its inability to meet the assumptions or the impact on its financial performance that could occur as a result of various risks and uncertainties, the market value of common stock issued by MSTR could decline significantly.
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| Defiance MSTR LightningSpread(TM) Income ETF | Bitcoin Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Bitcoin Risk. While the Fund will not directly invest in digital assets, it will be subject to the risks associated with Bitcoin by virtue of its investments in options contracts that reference MSTR. Investing in Bitcoin exposes investors (such as MSTR and, in turn, MSTR shareholders) to significant risks that are not typically present in other investments. These risks include the uncertainty surrounding new technology, limited evaluation due to Bitcoin’s short trading history, and the potential decline in adoption and value over the long term. The extreme volatility of Bitcoin’s price is also a risk factor. Regulatory uncertainties, such as potential government interventions and conflicting regulations across jurisdictions, can impact the demand for Bitcoin and restrict its usage. Additionally, risks associated with the sale of newly mined Bitcoin, Bitcoin exchanges, competition from alternative digital assets, mining operations, network modifications, and intellectual property claims pose further challenges to Bitcoin-linked investments.
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| Defiance MSTR LightningSpread(TM) Income ETF | Risk Lose Money [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | The Fund may not achieve its investment objective and there is a risk that you could lose all of your money invested in the Fund. | ||||||||||||||||||||||||
| Defiance MSTR LightningSpread(TM) Income ETF | Risk Nondiversified Status [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Non-Diversification Risk. Because the Fund is “non-diversified,” it may invest a greater percentage of its assets in the securities of a single issuer or a smaller number of issuers than if it was a diversified fund. As a result, a decline in the value of an investment in a single issuer or a smaller number of issuers could cause the Fund’s overall value to decline to a greater degree than if the Fund held a more diversified portfolio.
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| Defiance NVDA LightningSpread(TM) Income ETF | Semiconductor Company Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Semiconductor Company Risk. Competitive pressures may have a significant effect on the financial condition of semiconductor companies and, as product cycles shorten and manufacturing capacity increases, these companies may become increasingly subject to aggressive pricing, which hampers profitability. Reduced demand for end-user products, under-utilization of manufacturing capacity, and other factors could adversely impact the operating results of companies in the semiconductor sector. Semiconductor companies typically face high capital costs and may be heavily dependent on intellectual property rights. The semiconductor sector is highly cyclical, which may cause the operating results of many semiconductor companies to vary significantly. The stock prices of companies in the semiconductor sector have been and likely will continue to be extremely volatile.
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| Defiance NVDA LightningSpread(TM) Income ETF | Derivatives Risks [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Derivatives Risks. Derivatives are financial instruments that derive value from the underlying reference asset or assets, such as stocks, bonds, or funds (including ETFs), interest rates or indexes. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other ordinary investments, including risk related to the market, imperfect correlation with underlying investments or the Fund’s other portfolio holdings, higher price volatility, lack of availability, counterparty risk, liquidity, valuation and legal restrictions. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with ordinary portfolio securities transactions. The use of derivatives may result in larger losses or smaller gains than directly investing in securities. When the Fund uses derivatives, there may be an imperfect correlation between the value of the underlying reference asset and the derivative, which may prevent the Fund from achieving its investment objective. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of those amounts initially invested. In addition, the Fund’s investments in derivatives are subject to the following risks:
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| Defiance NVDA LightningSpread(TM) Income ETF | Options Contracts [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
Although the Fund may use options to provide synthetic exposure to the Underlying Security, option prices may not perfectly replicate the rate of change of the Underlying Security prior to expiration, resulting in potential tracking differences. Similarly, the premiums received from selling put spreads are influenced by market volatility and the specific strike prices selected, which can vary based on market conditions.
The Fund may experience downside risk from certain options positions, including the potential for purchased options to expire worthless, resulting in the loss of premiums paid. Writing (selling) options also exposes the Fund to risk of loss, which may exceed the premiums received. For example, selling put options exposes the Fund to the risk that the price of the Underlying Security declines below the strike price, potentially resulting in substantial losses. Selling put spreads limits these losses to the difference between the strike prices of the sold and purchased puts, less the net premium received, but does not eliminate risk.
The Fund may encounter challenges in managing written options positions, particularly in volatile or illiquid markets, where closing or adjusting positions may be difficult or costly. Additionally, the process of rolling options positions, replacing expiring options with new contracts to maintain exposure, can involve significant transaction costs and expose the Fund to additional risks, such as adverse price movements during the roll period or reduced liquidity in the desired contracts. The Fund may also face margin requirements associated with written options, which could require the Fund to liquidate other assets to meet these obligations, potentially at unfavorable prices. Collectively, these risks may result in losses or reduced investment efficiency for the Fund.
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| Defiance NVDA LightningSpread(TM) Income ETF | Swap Agreements [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
The swap agreements in which the Fund invests are generally traded in the over-the-counter market, which generally has less transparency than exchange-traded derivative instruments. In a standard swap transaction, two parties agree to exchange the return (or differentials in rates of return) earned or realized on particular predetermined reference assets, securities, or instruments. The gross return to be exchanged or “swapped” between the parties is calculated based on a notional amount or the return on or change in value of a particular dollar amount invested in the reference asset.
If the Underlying Security experiences a significant price movement that causes a material change in the Fund’s net assets, the terms of a swap agreement between the Fund and its counterparty may permit the counterparty to close out the swap transaction with the Fund. In that event, the Fund may be unable to enter into another swap agreement or invest in other derivatives to maintain exposure consistent with its investment objective. This may temporarily reduce the Fund’s ability to maintain its intended level of synthetic exposure until replacement transactions can be established.
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| Defiance NVDA LightningSpread(TM) Income ETF | Counterparty Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Counterparty Risk. The Fund is subject to counterparty risk by virtue of its investments in options contracts. Transactions in some types of derivatives, including options, are required to be centrally cleared (“cleared derivatives”). In a transaction involving cleared derivatives, the Fund’s counterparty is a clearing house rather than a bank or broker. Since the Fund is not a member of clearing houses and only members of a clearing house (“clearing members”) can participate directly in the clearing house, the Fund will hold cleared derivatives through accounts at clearing members. In cleared derivatives positions, the Fund will make payments (including margin payments) to and receive payments from a clearing house through their accounts at clearing members. Customer funds held at a clearing organization in connection with any options contracts are held in a commingled omnibus account and are not identified to the name of the clearing member’s individual customers. As a result, assets deposited by the Fund with any clearing member as margin for options may, in certain circumstances, be used to satisfy losses of other clients of the Fund’s clearing member. In addition, although clearing members guarantee performance of their clients’ obligations to the clearing house, there is a risk that the assets of the Fund might not be fully protected in the event of the clearing member’s bankruptcy, as the Fund would be limited to recovering only a pro rata share of all available funds segregated on behalf of the clearing member’s customers for the relevant account class. The Fund is also subject to the risk that a limited number of clearing members are willing to transact on the Fund’s behalf, which heightens the risks associated with a clearing member’s default. This risk is greater for the Fund as it seeks to hold options contracts on a single security, and not a broader range of options contracts, which may limit the number of clearing members that are willing to transact on the Fund’s behalf. If a clearing member defaults the Fund could lose some or all of the benefits of a transaction entered into by the Fund with the clearing member. If the Fund cannot find a clearing member to transact with on the Fund’s behalf, the Fund may be unable to effectively implement its investment strategy.
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| Defiance NVDA LightningSpread(TM) Income ETF | Distribution Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Distribution Risk. As part of the Fund’s investment objective, the Fund seeks to provide current income twice weekly. There is no assurance that the Fund will make more than one, or any, distribution in a given week. If the Fund does make distributions, the amounts of such distributions will likely vary greatly from one distribution to the next.
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| Defiance NVDA LightningSpread(TM) Income ETF | NAV Erosion Risk Due to Distributions [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
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| Defiance NVDA LightningSpread(TM) Income ETF | Equity Market Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Equity Market Risk. Common stocks are generally exposed to greater risk than other types of securities, such as preferred stock and debt obligations, because common stockholders generally have inferior rights to receive payment from specific issuers. The equity securities held in the Fund’s portfolio may experience sudden, unpredictable drops in value or long periods of decline in value. This may occur because of factors that affect securities markets generally or factors affecting specific issuers, industries, or sectors in which the Fund invests. Common stocks, such as those held by the Fund, are generally exposed to greater risk than other types of securities, such as preferred stock and debt obligations, because common stockholders generally have inferior rights to receive payment from issuers.
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| Defiance NVDA LightningSpread(TM) Income ETF | Concentration Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Concentration Risk. The Fund’s investment exposure will be concentrated in (or substantially exposed to) the same industry or group of industries assigned to the Underlying Security. As a result, the Fund may be more susceptible to loss due to adverse occurrences that affect the price of such industries more than the market as a whole.
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| Defiance NVDA LightningSpread(TM) Income ETF | ETF Risks [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | ETF Risks
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| Defiance NVDA LightningSpread(TM) Income ETF | Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that are authorized to purchase and redeem Shares directly from the Fund (known as “Authorized Participants” or “APs”). In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services; or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
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| Defiance NVDA LightningSpread(TM) Income ETF | Cash Redemption Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Cash Redemption Risk. The Fund’s investment strategy may require it to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. For example, the Fund may not be able to redeem in-kind certain securities held by the Fund (e.g., derivative instruments). In such a case, the Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used. By paying out higher annual capital gain distributions, investors may be subjected to increased capital gains taxes. Additionally, there may be brokerage costs or taxable gains or losses that may be imposed on the Fund in connection with a cash redemption that may not have occurred if the Fund had made a redemption in-kind. These costs could decrease the value of the Fund to the extent they are not offset by a transaction fee payable by an AP.
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| Defiance NVDA LightningSpread(TM) Income ETF | Costs of Buying or Selling Shares [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
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| Defiance NVDA LightningSpread(TM) Income ETF | Shares May Trade at Prices Other Than NAV [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
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| Defiance NVDA LightningSpread(TM) Income ETF | Trading [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Trading. Although Shares are listed on a national securities exchange, such as Cboe BZX Exchange, Inc. (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that an active trading market for the Shares will develop or be maintained or that the Shares will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Shares. Shares trade on the Exchange at market price that may be below, at or above the Fund’s NAV. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable. In addition, trading in Shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange “circuit breaker” rules. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged. As a result, the Fund could be adversely affected and be unable to implement its investment strategies in the event of an unscheduled closing.
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| Defiance NVDA LightningSpread(TM) Income ETF | Economic and Market Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Economic and Market Risk. Economies and financial markets throughout the world are becoming increasingly interconnected, which increases the likelihood that events or conditions in one country or region will adversely impact markets or issuers in other countries or regions. Securities in the Fund’s portfolio may underperform in comparison to securities in the general financial markets, a particular financial market, or other asset classes, due to a number of factors, including inflation (or expectations for inflation), deflation (or expectations for deflation), interest rates, global demand for particular products or resources, market instability, financial system instability, debt crises and downgrades, embargoes, tariffs, sanctions and other trade barriers, regulatory events, other governmental trade or market control programs and related geopolitical events. In addition, the value of the Fund’s investments may be negatively affected by the occurrence of global events such as war, terrorism, environmental disasters, natural disasters or events, country instability, and infectious disease epidemics or pandemics. The imposition by the U.S. of tariffs on goods imported from foreign countries and reciprocal tariffs levied on U.S. goods by those countries also may lead to volatility and instability in domestic and foreign markets.
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| Defiance NVDA LightningSpread(TM) Income ETF | High Portfolio Turnover Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | High Portfolio Turnover Risk. The Fund may actively and frequently trade all or a significant portion of the Fund’s holdings. A high portfolio turnover rate increases transaction costs, which may increase the Fund’s expenses. Frequent trading may also cause adverse tax consequences for investors in the Fund due to an increase in short-term capital gains.
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| Defiance NVDA LightningSpread(TM) Income ETF | Inflation Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Inflation Risk. Inflation risk is the risk that the value of assets or income from investments will be less in the future as inflation decreases the value of money. As inflation increases, the present value of the Fund’s assets and distributions, if any, may decline.
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| Defiance NVDA LightningSpread(TM) Income ETF | Market Capitalization Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Market Capitalization Risk
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| Defiance NVDA LightningSpread(TM) Income ETF | Large-Capitalization Investing [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Large-Capitalization Investing. The securities of large-capitalization companies may be relatively mature compared to smaller companies and therefore subject to slower growth during times of economic expansion. Large-capitalization companies may also be unable to respond quickly to new competitive challenges, such as changes in technology and consumer tastes.
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| Defiance NVDA LightningSpread(TM) Income ETF | Money Market Instrument Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Money Market Instrument Risk. The Fund may use a variety of money market instruments for cash management purposes, including money market funds, depositary accounts and repurchase agreements. Repurchase agreements are contracts in which a seller of securities agrees to buy the securities back at a specified time and price. Repurchase agreements may be subject to market and credit risk related to the collateral securing the repurchase agreement. Money market instruments, including money market funds, may lose money through fees or other means.
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| Defiance NVDA LightningSpread(TM) Income ETF | New Fund Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | New Fund Risk. The Fund is a recently organized management investment company with no operating history. As a result, prospective investors do not have a track record or history on which to base their investment decisions.
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| Defiance NVDA LightningSpread(TM) Income ETF | Operational Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Operational Risk. The Fund is subject to risks arising from various operational factors, including, but not limited to, human error, processing and communication errors, errors of the Fund’s service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund relies on third-parties for a range of services, including custody. Any delay or failure relating to engaging or maintaining such service providers may affect the Fund’s ability to meet its investment objective. Although the Fund and Adviser seek to reduce these operational risks through controls and procedures, there is no way to completely protect against such risks.
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| Defiance NVDA LightningSpread(TM) Income ETF | Tax Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Tax Risk. The Fund intends to elect and to qualify each year to be treated as a regulated investment company (a “RIC”) under Subchapter M of the Internal Revenue Code of 1986, as amended (“Code”). As a RIC, the Fund will not be subject to U.S. federal income tax on the portion of its net investment income and net capital gain that it distributes to shareholders, provided that it satisfies certain requirements of the Code. If the Fund does not qualify as a RIC for any taxable year and certain relief provisions are not available, the Fund’s taxable income will be subject to tax at the Fund level and to a further tax at the shareholder level when such income is distributed. To comply with the asset diversification test applicable to a RIC, the Fund will attempt to ensure that the value of swap contracts and options on shares of a single issuer does not exceed 25% of the Fund’s value at the close of any quarter. If the value of swap contracts and options on shares of a single issuer were to exceed 25% of the Fund’s total assets at the end of a tax quarter, the Fund, generally, has a grace period to cure such lack of compliance. If the Fund fails to timely cure, it may no longer be eligible to be treated as a RIC.
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| Defiance NVDA LightningSpread(TM) Income ETF | U.S. Government and U.S. Agency Obligations Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | U.S. Government and U.S. Agency Obligations Risk. The Fund may invest in securities issued by the U.S. government or its agencies or instrumentalities. U.S. Government obligations include securities issued or guaranteed as to principal and interest by the U.S. Government, its agencies or instrumentalities, such as the U.S. Treasury. Payment of principal and interest on U.S. Government obligations may be backed by the full faith and credit of the United States or may be backed solely by the issuing or guaranteeing agency or instrumentality itself. In the latter case, the investor must look principally to the agency or instrumentality issuing or guaranteeing the obligation for ultimate repayment, which agency or instrumentality may be privately owned. There can be no assurance that the U.S. Government would provide financial support to its agencies or instrumentalities (including government-sponsored enterprises) where it is not obligated to do so.
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| Defiance NVDA LightningSpread(TM) Income ETF | NVIDIA Corporation Risks [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | NVIDIA Corporation Risks. The Fund invests in derivative instruments that are based on the value of NVDA. This subjects the Fund to certain of the same risks as if it owned shares of NVDA, even though it does not. By virtue of the Fund’s investments in derivative instruments that are based on the value of NVDA, the Fund may also be subject to the following risks
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| Defiance NVDA LightningSpread(TM) Income ETF | Indirect Investment in NVIDIA Corporation Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Indirect Investment in NVIDIA Corporation Risk. NVIDIA Corporation is not affiliated with the Trust, the Fund, the Adviser, or their respective affiliates and is not involved with this offering in any way and has no obligation to consider your Shares in taking any corporate actions that might affect the value of Shares. Investors in the Fund will not have voting rights and will not be able to influence management of NVIDIA Corporation. but will be exposed to the performance of NVDA (the underlying stock). Investors in the Fund will not have rights to receive dividends or other distributions or any other rights with respect to the underlying stock but will be subject to declines in the performance of the underlying stock.
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| Defiance NVDA LightningSpread(TM) Income ETF | NVDA Trading Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | NVDA Trading Risk. The trading price of NVDA may be highly volatile and could continue to be subject to wide fluctuations in response to various factors. The stock market in general, and the market for technology companies in particular, has experienced extreme price and volume fluctuations that have often been unrelated or disproportionate to the operating performance of those companies. In particular, a large proportion of NVDA may be traded by short sellers which may put pressure on the supply and demand for the common stock of NVIDIA Corporation, further influencing volatility in its market price. Public perception and other factors outside of the control of NVIDIA Corporation may additionally impact NVDA’s stock price due to NVIDIA Corporation garnering a disproportionate degree of public attention, regardless of actual operating performance. In addition, in the past, following periods of volatility in the overall market and the market price of a particular company’s securities, securities class action litigation has often been instituted against companies such as these. Moreover, stockholder litigation like this has been filed against NVIDIA Corporation in the past. While NVIDIA Corporation continues to defend such actions, any judgment against NVIDIA Corporation, or any future stockholder litigation could result in substantial costs and a diversion of the management of NVIDIA Corporation’s attention and resources. If NVDA trading is halted, trading in Shares of the Fund may be impacted, either temporarily or indefinitely.
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| Defiance NVDA LightningSpread(TM) Income ETF | NVIDIA Corporation Performance Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | NVIDIA Corporation Performance Risk. NVIDIA Corporation may fail to meet its publicly announced guidelines or other expectations about its business, which could cause the price of NVDA to decline. NVIDIA Corporation provides guidance regarding its expected financial and business performance, such as projections regarding sales and production, as well as anticipated future revenues, gross margins, profitability and cash flows. Correctly identifying key factors affecting business conditions and predicting future events is inherently an uncertain process, and the guidance NVIDIA Corporation provides may not ultimately be accurate and has in the past been inaccurate in certain respects, such as the timing of new product manufacturing ramps. The guidance is based on certain assumptions such as those relating to global and local economic conditions, anticipated production and sales volumes (which generally are not linear throughout a given period), average sales prices, supplier and commodity costs, and planned cost reductions. If NVIDIA Corporation’s guidance is not accurate or varies from actual results due to its inability to meet the assumptions or the impact on its financial performance that could occur as a result of various risks and uncertainties, the market value of common stock issued by NVIDIA Corporation could decline significantly.
NVIDIA Corporation’s accelerated computing platforms address four large markets: Gaming, Data Center, Professional Visualization, and Automotive. These markets experience rapid changes in technology, customer requirements, new product introductions and enhancements, and industry standards.
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| Defiance NVDA LightningSpread(TM) Income ETF | Risk Lose Money [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | The Fund may not achieve its investment objective and there is a risk that you could lose all of your money invested in the Fund. | ||||||||||||||||||||||||
| Defiance NVDA LightningSpread(TM) Income ETF | Risk Nondiversified Status [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Non-Diversification Risk. Because the Fund is “non-diversified,” it may invest a greater percentage of its assets in the securities of a single issuer or a smaller number of issuers than if it was a diversified fund. As a result, a decline in the value of an investment in a single issuer or a smaller number of issuers could cause the Fund’s overall value to decline to a greater degree than if the Fund held a more diversified portfolio.
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| Defiance ORCL LightningSpread(TM) Income ETF | Derivatives Risks [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Derivatives Risks. Derivatives are financial instruments that derive value from the underlying reference asset or assets, such as stocks, bonds, or funds (including ETFs), interest rates or indexes. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other ordinary investments, including risk related to the market, imperfect correlation with underlying investments or the Fund’s other portfolio holdings, higher price volatility, lack of availability, counterparty risk, liquidity, valuation and legal restrictions. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with ordinary portfolio securities transactions. The use of derivatives may result in larger losses or smaller gains than directly investing in securities. When the Fund uses derivatives, there may be an imperfect correlation between the value of the underlying reference asset and the derivative, which may prevent the Fund from achieving its investment objective. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of those amounts initially invested. In addition, the Fund’s investments in derivatives are subject to the following risks:
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| Defiance ORCL LightningSpread(TM) Income ETF | Options Contracts [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
Although the Fund may use options to provide synthetic exposure to the Underlying Security, option prices may not perfectly replicate the rate of change of the Underlying Security prior to expiration, resulting in potential tracking differences. Similarly, the premiums received from selling put spreads are influenced by market volatility and the specific strike prices selected, which can vary based on market conditions.
The Fund may experience downside risk from certain options positions, including the potential for purchased options to expire worthless, resulting in the loss of premiums paid. Writing (selling) options also exposes the Fund to risk of loss, which may exceed the premiums received. For example, selling put options exposes the Fund to the risk that the price of the Underlying Security declines below the strike price, potentially resulting in substantial losses. Selling put spreads limits these losses to the difference between the strike prices of the sold and purchased puts, less the net premium received, but does not eliminate risk.
The Fund may encounter challenges in managing written options positions, particularly in volatile or illiquid markets, where closing or adjusting positions may be difficult or costly. Additionally, the process of rolling options positions, replacing expiring options with new contracts to maintain exposure, can involve significant transaction costs and expose the Fund to additional risks, such as adverse price movements during the roll period or reduced liquidity in the desired contracts. The Fund may also face margin requirements associated with written options, which could require the Fund to liquidate other assets to meet these obligations, potentially at unfavorable prices. Collectively, these risks may result in losses or reduced investment efficiency for the Fund.
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| Defiance ORCL LightningSpread(TM) Income ETF | Swap Agreements [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
The swap agreements in which the Fund invests are generally traded in the over-the-counter market, which generally has less transparency than exchange-traded derivative instruments. In a standard swap transaction, two parties agree to exchange the return (or differentials in rates of return) earned or realized on particular predetermined reference assets, securities, or instruments. The gross return to be exchanged or “swapped” between the parties is calculated based on a notional amount or the return on or change in value of a particular dollar amount invested in the reference asset.
If the Underlying Security experiences a significant price movement that causes a material change in the Fund’s net assets, the terms of a swap agreement between the Fund and its counterparty may permit the counterparty to close out the swap transaction with the Fund. In that event, the Fund may be unable to enter into another swap agreement or invest in other derivatives to maintain exposure consistent with its investment objective. This may temporarily reduce the Fund’s ability to maintain its intended level of synthetic exposure until replacement transactions can be established.
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| Defiance ORCL LightningSpread(TM) Income ETF | Counterparty Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Counterparty Risk. The Fund is subject to counterparty risk by virtue of its investments in options contracts. Transactions in some types of derivatives, including options, are required to be centrally cleared (“cleared derivatives”). In a transaction involving cleared derivatives, the Fund’s counterparty is a clearing house rather than a bank or broker. Since the Fund is not a member of clearing houses and only members of a clearing house (“clearing members”) can participate directly in the clearing house, the Fund will hold cleared derivatives through accounts at clearing members. In cleared derivatives positions, the Fund will make payments (including margin payments) to and receive payments from a clearing house through their accounts at clearing members. Customer funds held at a clearing organization in connection with any options contracts are held in a commingled omnibus account and are not identified to the name of the clearing member’s individual customers. As a result, assets deposited by the Fund with any clearing member as margin for options may, in certain circumstances, be used to satisfy losses of other clients of the Fund’s clearing member. In addition, although clearing members guarantee performance of their clients’ obligations to the clearing house, there is a risk that the assets of the Fund might not be fully protected in the event of the clearing member’s bankruptcy, as the Fund would be limited to recovering only a pro rata share of all available funds segregated on behalf of the clearing member’s customers for the relevant account class. The Fund is also subject to the risk that a limited number of clearing members are willing to transact on the Fund’s behalf, which heightens the risks associated with a clearing member’s default. This risk is greater for the Fund as it seeks to hold options contracts on a single security, and not a broader range of options contracts, which may limit the number of clearing members that are willing to transact on the Fund’s behalf. If a clearing member defaults the Fund could lose some or all of the benefits of a transaction entered into by the Fund with the clearing member. If the Fund cannot find a clearing member to transact with on the Fund’s behalf, the Fund may be unable to effectively implement its investment strategy.
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| Defiance ORCL LightningSpread(TM) Income ETF | Distribution Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Distribution Risk. As part of the Fund’s investment objective, the Fund seeks to provide current income twice weekly. There is no assurance that the Fund will make more than one, or any, distribution in a given week. If the Fund does make distributions, the amounts of such distributions will likely vary greatly from one distribution to the next.
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| Defiance ORCL LightningSpread(TM) Income ETF | NAV Erosion Risk Due to Distributions [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
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| Defiance ORCL LightningSpread(TM) Income ETF | Equity Market Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Equity Market Risk. Common stocks are generally exposed to greater risk than other types of securities, such as preferred stock and debt obligations, because common stockholders generally have inferior rights to receive payment from specific issuers. The equity securities held in the Fund’s portfolio may experience sudden, unpredictable drops in value or long periods of decline in value. This may occur because of factors that affect securities markets generally or factors affecting specific issuers, industries, or sectors in which the Fund invests. Common stocks, such as those held by the Fund, are generally exposed to greater risk than other types of securities, such as preferred stock and debt obligations, because common stockholders generally have inferior rights to receive payment from issuers.
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| Defiance ORCL LightningSpread(TM) Income ETF | Concentration Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Concentration Risk. The Fund’s investment exposure will be concentrated in (or substantially exposed to) the same industry or group of industries assigned to the Underlying Security. As a result, the Fund may be more susceptible to loss due to adverse occurrences that affect the price of such industries more than the market as a whole.
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| Defiance ORCL LightningSpread(TM) Income ETF | ETF Risks [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | ETF Risks
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| Defiance ORCL LightningSpread(TM) Income ETF | Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that are authorized to purchase and redeem Shares directly from the Fund (known as “Authorized Participants” or “APs”). In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services; or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
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| Defiance ORCL LightningSpread(TM) Income ETF | Cash Redemption Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Cash Redemption Risk. The Fund’s investment strategy may require it to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. For example, the Fund may not be able to redeem in-kind certain securities held by the Fund (e.g., derivative instruments). In such a case, the Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used. By paying out higher annual capital gain distributions, investors may be subjected to increased capital gains taxes. Additionally, there may be brokerage costs or taxable gains or losses that may be imposed on the Fund in connection with a cash redemption that may not have occurred if the Fund had made a redemption in-kind. These costs could decrease the value of the Fund to the extent they are not offset by a transaction fee payable by an AP.
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| Defiance ORCL LightningSpread(TM) Income ETF | Costs of Buying or Selling Shares [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
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| Defiance ORCL LightningSpread(TM) Income ETF | Shares May Trade at Prices Other Than NAV [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
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| Defiance ORCL LightningSpread(TM) Income ETF | Trading [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Trading. Although Shares are listed on a national securities exchange, such as Cboe BZX Exchange, Inc. (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that an active trading market for the Shares will develop or be maintained or that the Shares will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Shares. Shares trade on the Exchange at market price that may be below, at or above the Fund’s NAV. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable. In addition, trading in Shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange “circuit breaker” rules. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged. As a result, the Fund could be adversely affected and be unable to implement its investment strategies in the event of an unscheduled closing.
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| Defiance ORCL LightningSpread(TM) Income ETF | Economic and Market Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Economic and Market Risk. Economies and financial markets throughout the world are becoming increasingly interconnected, which increases the likelihood that events or conditions in one country or region will adversely impact markets or issuers in other countries or regions. Securities in the Fund’s portfolio may underperform in comparison to securities in the general financial markets, a particular financial market, or other asset classes, due to a number of factors, including inflation (or expectations for inflation), deflation (or expectations for deflation), interest rates, global demand for particular products or resources, market instability, financial system instability, debt crises and downgrades, embargoes, tariffs, sanctions and other trade barriers, regulatory events, other governmental trade or market control programs and related geopolitical events. In addition, the value of the Fund’s investments may be negatively affected by the occurrence of global events such as war, terrorism, environmental disasters, natural disasters or events, country instability, and infectious disease epidemics or pandemics. The imposition by the U.S. of tariffs on goods imported from foreign countries and reciprocal tariffs levied on U.S. goods by those countries also may lead to volatility and instability in domestic and foreign markets.
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| Defiance ORCL LightningSpread(TM) Income ETF | High Portfolio Turnover Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | High Portfolio Turnover Risk. The Fund may actively and frequently trade all or a significant portion of the Fund’s holdings. A high portfolio turnover rate increases transaction costs, which may increase the Fund’s expenses. Frequent trading may also cause adverse tax consequences for investors in the Fund due to an increase in short-term capital gains.
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| Defiance ORCL LightningSpread(TM) Income ETF | Inflation Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Inflation Risk. Inflation risk is the risk that the value of assets or income from investments will be less in the future as inflation decreases the value of money. As inflation increases, the present value of the Fund’s assets and distributions, if any, may decline.
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| Defiance ORCL LightningSpread(TM) Income ETF | Market Capitalization Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Market Capitalization Risk
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| Defiance ORCL LightningSpread(TM) Income ETF | Large-Capitalization Investing [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Large-Capitalization Investing. The securities of large-capitalization companies may be relatively mature compared to smaller companies and therefore subject to slower growth during times of economic expansion. Large-capitalization companies may also be unable to respond quickly to new competitive challenges, such as changes in technology and consumer tastes.
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| Defiance ORCL LightningSpread(TM) Income ETF | Money Market Instrument Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Money Market Instrument Risk. The Fund may use a variety of money market instruments for cash management purposes, including money market funds, depositary accounts and repurchase agreements. Repurchase agreements are contracts in which a seller of securities agrees to buy the securities back at a specified time and price. Repurchase agreements may be subject to market and credit risk related to the collateral securing the repurchase agreement. Money market instruments, including money market funds, may lose money through fees or other means.
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| Defiance ORCL LightningSpread(TM) Income ETF | New Fund Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | New Fund Risk. The Fund is a recently organized management investment company with no operating history. As a result, prospective investors do not have a track record or history on which to base their investment decisions.
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| Defiance ORCL LightningSpread(TM) Income ETF | Operational Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Operational Risk. The Fund is subject to risks arising from various operational factors, including, but not limited to, human error, processing and communication errors, errors of the Fund’s service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund relies on third-parties for a range of services, including custody. Any delay or failure relating to engaging or maintaining such service providers may affect the Fund’s ability to meet its investment objective. Although the Fund and Adviser seek to reduce these operational risks through controls and procedures, there is no way to completely protect against such risks.
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| Defiance ORCL LightningSpread(TM) Income ETF | Tax Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Tax Risk. The Fund intends to elect and to qualify each year to be treated as a regulated investment company (a “RIC”) under Subchapter M of the Internal Revenue Code of 1986, as amended (“Code”). As a RIC, the Fund will not be subject to U.S. federal income tax on the portion of its net investment income and net capital gain that it distributes to shareholders, provided that it satisfies certain requirements of the Code. If the Fund does not qualify as a RIC for any taxable year and certain relief provisions are not available, the Fund’s taxable income will be subject to tax at the Fund level and to a further tax at the shareholder level when such income is distributed. To comply with the asset diversification test applicable to a RIC, the Fund will attempt to ensure that the value of swap contracts and options on shares of a single issuer does not exceed 25% of the Fund’s value at the close of any quarter. If the value of swap contracts and options on shares of a single issuer were to exceed 25% of the Fund’s total assets at the end of a tax quarter, the Fund, generally, has a grace period to cure such lack of compliance. If the Fund fails to timely cure, it may no longer be eligible to be treated as a RIC.
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| Defiance ORCL LightningSpread(TM) Income ETF | U.S. Government and U.S. Agency Obligations Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | U.S. Government and U.S. Agency Obligations Risk. The Fund may invest in securities issued by the U.S. government or its agencies or instrumentalities. U.S. Government obligations include securities issued or guaranteed as to principal and interest by the U.S. Government, its agencies or instrumentalities, such as the U.S. Treasury. Payment of principal and interest on U.S. Government obligations may be backed by the full faith and credit of the United States or may be backed solely by the issuing or guaranteeing agency or instrumentality itself. In the latter case, the investor must look principally to the agency or instrumentality issuing or guaranteeing the obligation for ultimate repayment, which agency or instrumentality may be privately owned. There can be no assurance that the U.S. Government would provide financial support to its agencies or instrumentalities (including government-sponsored enterprises) where it is not obligated to do so.
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| Defiance ORCL LightningSpread(TM) Income ETF | Software Industry Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Software Industry Risk. The software industry can be significantly affected by intense competition, aggressive pricing, technological innovations, and product obsolescence. Companies in the software industry are subject to significant competitive pressures, such as aggressive pricing, new market entrants, competition for market share, short product cycles due to an accelerated rate of technological developments and the potential for limited earnings and/or falling profit margins. These companies also face the risks that new services, equipment or technologies will not be accepted by consumers and businesses or will become rapidly obsolete. These factors can affect the profitability of these companies and, as a result, the value of their securities. Also, patent protection is integral to the success of many companies in this industry, and profitability can be affected materially by, among other things, the cost of obtaining (or failing to obtain) patent approvals, the cost of litigating patent infringement and the loss of patent protection for products (which significantly increases pricing pressures and can materially reduce profitability with respect to such products). In addition, many software companies have limited operating histories. Prices of these companies’ securities historically have been more volatile than other securities, especially over the short term.
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| Defiance ORCL LightningSpread(TM) Income ETF | ORCL Risks [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | ORCL Risks. The Fund invests in derivative instruments that are based on the value of ORCL. This subjects the Fund to certain of the same risks as if it owned shares of ORCL, even though it does not. By virtue of the Fund’s investments in derivative instruments that are based on the value of ORCL, the Fund may also be subject to the following risks:
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| Defiance ORCL LightningSpread(TM) Income ETF | Indirect Investment in ORCL Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Indirect Investment in ORCL Risk. ORCL is not affiliated with the Trust, the Fund, or the Adviser, or their respective affiliates and is not involved with this offering in any way and has no obligation to consider your Shares in taking any corporate actions that might affect the value of Shares. Investors in the Fund will not have voting rights and will not be able to influence management of ORCL but will be exposed to the performance of ORCL (the Underlying Security). Investors in the Fund will not have the right to receive dividends or other distributions or any other rights with respect to the Underlying Security but will be subject to declines in the performance of the Underlying Security.
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| Defiance ORCL LightningSpread(TM) Income ETF | ORCL Trading Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | ORCL Trading Risk. The trading price of ORCL may be subject to volatility and could experience wide fluctuations due to various factors. Short sellers may also play a significant role in trading ORCL, potentially affecting the supply and demand dynamics and contributing to market price volatility. Public perception and external factors beyond the company’s control may influence ORCL’s stock price disproportionately. Additionally, following periods of market volatility, companies have faced securities class action litigation. Any adverse judgment or future stockholder litigation could result in substantial costs and divert management’s attention and resources. In the event of a halt in trading of ORCL, trading in shares of related funds may be impacted, either temporarily or indefinitely.
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| Defiance ORCL LightningSpread(TM) Income ETF | ORCL Performance Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | ORCL Performance Risk. ORCL may fail to meet its publicly announced guidelines or other expectations about its business, which could cause the price of ORCL to decline. ORCL provides guidance regarding its expected financial and business performance, such as projections regarding sales and production, as well as anticipated future revenues, gross margins, profitability and cash flows. Correctly identifying key factors affecting business conditions and predicting future events is inherently an uncertain process, and the guidance ORCL provides may not ultimately be accurate. If ORCL’s guidance is not accurate or varies from actual results due to its inability to meet the assumptions or the impact on its financial performance that could occur as a result of various risks and uncertainties, the market value of common stock issued by ORCL could decline significantly.
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| Defiance ORCL LightningSpread(TM) Income ETF | Operations and Business Risks [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Operations and Business Risks. ORCL may be unsuccessful in developing and selling new products and services, integrating acquired products and services and enhancing its existing products and services. ORCL’s industry is characterized by rapid technological advances, intense competition, changing delivery models, evolving standards in communications infrastructure, increasingly sophisticated customer needs and frequent new product introductions and enhancements. If ORCL is unable to develop new or sufficiently differentiated products and services, enhance and improve its product offerings and support services in a timely manner or position and price its products and services to meet demand, customers may not purchase or subscribe to ORCL’s license, hardware or cloud offerings or renew license support, hardware support or cloud subscriptions contracts.
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| Defiance ORCL LightningSpread(TM) Income ETF | Data Security Risks [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Data Security Risks. If ORCL’s security measures for its products and services are compromised and as a result, its data, its customers’ data or its IT systems are accessed improperly, made unavailable, or improperly modified, ORCL’s products and services may be perceived as vulnerable, its brand and reputation could be damaged, the IT services ORCL provides to its customers could be disrupted, and customers may stop using ORCL’s products and services, any of which could reduce ORCL’s revenue and earnings, increase its expenses and expose it to legal claims and regulatory actions.
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| Defiance ORCL LightningSpread(TM) Income ETF | Intellectual Property Risks [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Intellectual Property Risks. ORCL relies on copyright, trademark, patent and trade secret laws, confidentiality procedures, controls and contractual commitments to protect its intellectual property. Despite ORCL’s efforts, these protections may be limited. Unauthorized third parties may try to copy or reverse engineer ORCL products or otherwise use its intellectual property. ORCL patents may be invalidated or circumvented. Any of ORCL’s pending or future patent applications may not be issued with the claim scope it seeks, if at all. In addition, the laws of some countries do not provide the same level of intellectual property protection as U.S. laws and courts. If ORCL cannot protect its intellectual property against unauthorized copying or use, or other misappropriation, ORCL may not remain competitive.
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| Defiance ORCL LightningSpread(TM) Income ETF | Risk Lose Money [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | The Fund may not achieve its investment objective and there is a risk that you could lose all of your money invested in the Fund. | ||||||||||||||||||||||||
| Defiance ORCL LightningSpread(TM) Income ETF | Risk Nondiversified Status [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Non-Diversification Risk. Because the Fund is “non-diversified,” it may invest a greater percentage of its assets in the securities of a single issuer or a smaller number of issuers than if it was a diversified fund. As a result, a decline in the value of an investment in a single issuer or a smaller number of issuers could cause the Fund’s overall value to decline to a greater degree than if the Fund held a more diversified portfolio.
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| Defiance PLTR LightningSpread(TM) Income ETF | Derivatives Risks [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Derivatives Risks. Derivatives are financial instruments that derive value from the underlying reference asset or assets, such as stocks, bonds, or funds (including ETFs), interest rates or indexes. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other ordinary investments, including risk related to the market, imperfect correlation with underlying investments or the Fund’s other portfolio holdings, higher price volatility, lack of availability, counterparty risk, liquidity, valuation and legal restrictions. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with ordinary portfolio securities transactions. The use of derivatives may result in larger losses or smaller gains than directly investing in securities. When the Fund uses derivatives, there may be an imperfect correlation between the value of the underlying reference asset and the derivative, which may prevent the Fund from achieving its investment objective. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of those amounts initially invested. In addition, the Fund’s investments in derivatives are subject to the following risks:
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| Defiance PLTR LightningSpread(TM) Income ETF | Options Contracts [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
Although the Fund may use options to provide synthetic exposure to the Underlying Security, option prices may not perfectly replicate the rate of change of the Underlying Security prior to expiration, resulting in potential tracking differences. Similarly, the premiums received from selling put spreads are influenced by market volatility and the specific strike prices selected, which can vary based on market conditions.
The Fund may experience downside risk from certain options positions, including the potential for purchased options to expire worthless, resulting in the loss of premiums paid. Writing (selling) options also exposes the Fund to risk of loss, which may exceed the premiums received. For example, selling put options exposes the Fund to the risk that the price of the Underlying Security declines below the strike price, potentially resulting in substantial losses. Selling put spreads limits these losses to the difference between the strike prices of the sold and purchased puts, less the net premium received, but does not eliminate risk.
The Fund may encounter challenges in managing written options positions, particularly in volatile or illiquid markets, where closing or adjusting positions may be difficult or costly. Additionally, the process of rolling options positions, replacing expiring options with new contracts to maintain exposure, can involve significant transaction costs and expose the Fund to additional risks, such as adverse price movements during the roll period or reduced liquidity in the desired contracts. The Fund may also face margin requirements associated with written options, which could require the Fund to liquidate other assets to meet these obligations, potentially at unfavorable prices. Collectively, these risks may result in losses or reduced investment efficiency for the Fund.
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| Defiance PLTR LightningSpread(TM) Income ETF | Swap Agreements [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
The swap agreements in which the Fund invests are generally traded in the over-the-counter market, which generally has less transparency than exchange-traded derivative instruments. In a standard swap transaction, two parties agree to exchange the return (or differentials in rates of return) earned or realized on particular predetermined reference assets, securities, or instruments. The gross return to be exchanged or “swapped” between the parties is calculated based on a notional amount or the return on or change in value of a particular dollar amount invested in the reference asset.
If the Underlying Security experiences a significant price movement that causes a material change in the Fund’s net assets, the terms of a swap agreement between the Fund and its counterparty may permit the counterparty to close out the swap transaction with the Fund. In that event, the Fund may be unable to enter into another swap agreement or invest in other derivatives to maintain exposure consistent with its investment objective. This may temporarily reduce the Fund’s ability to maintain its intended level of synthetic exposure until replacement transactions can be established.
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| Defiance PLTR LightningSpread(TM) Income ETF | Counterparty Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Counterparty Risk. The Fund is subject to counterparty risk by virtue of its investments in options contracts. Transactions in some types of derivatives, including options, are required to be centrally cleared (“cleared derivatives”). In a transaction involving cleared derivatives, the Fund’s counterparty is a clearing house rather than a bank or broker. Since the Fund is not a member of clearing houses and only members of a clearing house (“clearing members”) can participate directly in the clearing house, the Fund will hold cleared derivatives through accounts at clearing members. In cleared derivatives positions, the Fund will make payments (including margin payments) to and receive payments from a clearing house through their accounts at clearing members. Customer funds held at a clearing organization in connection with any options contracts are held in a commingled omnibus account and are not identified to the name of the clearing member’s individual customers. As a result, assets deposited by the Fund with any clearing member as margin for options may, in certain circumstances, be used to satisfy losses of other clients of the Fund’s clearing member. In addition, although clearing members guarantee performance of their clients’ obligations to the clearing house, there is a risk that the assets of the Fund might not be fully protected in the event of the clearing member’s bankruptcy, as the Fund would be limited to recovering only a pro rata share of all available funds segregated on behalf of the clearing member’s customers for the relevant account class. The Fund is also subject to the risk that a limited number of clearing members are willing to transact on the Fund’s behalf, which heightens the risks associated with a clearing member’s default. This risk is greater for the Fund as it seeks to hold options contracts on a single security, and not a broader range of options contracts, which may limit the number of clearing members that are willing to transact on the Fund’s behalf. If a clearing member defaults the Fund could lose some or all of the benefits of a transaction entered into by the Fund with the clearing member. If the Fund cannot find a clearing member to transact with on the Fund’s behalf, the Fund may be unable to effectively implement its investment strategy.
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| Defiance PLTR LightningSpread(TM) Income ETF | Distribution Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Distribution Risk. As part of the Fund’s investment objective, the Fund seeks to provide current income twice weekly. There is no assurance that the Fund will make more than one, or any, distribution in a given week. If the Fund does make distributions, the amounts of such distributions will likely vary greatly from one distribution to the next.
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| Defiance PLTR LightningSpread(TM) Income ETF | NAV Erosion Risk Due to Distributions [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
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| Defiance PLTR LightningSpread(TM) Income ETF | Equity Market Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Equity Market Risk. Common stocks are generally exposed to greater risk than other types of securities, such as preferred stock and debt obligations, because common stockholders generally have inferior rights to receive payment from specific issuers. The equity securities held in the Fund’s portfolio may experience sudden, unpredictable drops in value or long periods of decline in value. This may occur because of factors that affect securities markets generally or factors affecting specific issuers, industries, or sectors in which the Fund invests. Common stocks, such as those held by the Fund, are generally exposed to greater risk than other types of securities, such as preferred stock and debt obligations, because common stockholders generally have inferior rights to receive payment from issuers.
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| Defiance PLTR LightningSpread(TM) Income ETF | Concentration Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Concentration Risk. The Fund’s investment exposure will be concentrated in (or substantially exposed to) the same industry or group of industries assigned to the Underlying Security. As a result, the Fund may be more susceptible to loss due to adverse occurrences that affect the price of such industries more than the market as a whole.
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| Defiance PLTR LightningSpread(TM) Income ETF | ETF Risks [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | ETF Risks
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| Defiance PLTR LightningSpread(TM) Income ETF | Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that are authorized to purchase and redeem Shares directly from the Fund (known as “Authorized Participants” or “APs”). In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services; or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
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| Defiance PLTR LightningSpread(TM) Income ETF | Cash Redemption Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Cash Redemption Risk. The Fund’s investment strategy may require it to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. For example, the Fund may not be able to redeem in-kind certain securities held by the Fund (e.g., derivative instruments). In such a case, the Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used. By paying out higher annual capital gain distributions, investors may be subjected to increased capital gains taxes. Additionally, there may be brokerage costs or taxable gains or losses that may be imposed on the Fund in connection with a cash redemption that may not have occurred if the Fund had made a redemption in-kind. These costs could decrease the value of the Fund to the extent they are not offset by a transaction fee payable by an AP.
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| Defiance PLTR LightningSpread(TM) Income ETF | Costs of Buying or Selling Shares [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
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| Defiance PLTR LightningSpread(TM) Income ETF | Shares May Trade at Prices Other Than NAV [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
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| Defiance PLTR LightningSpread(TM) Income ETF | Trading [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Trading. Although Shares are listed on a national securities exchange, such as Cboe BZX Exchange, Inc. (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that an active trading market for the Shares will develop or be maintained or that the Shares will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Shares. Shares trade on the Exchange at market price that may be below, at or above the Fund’s NAV. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable. In addition, trading in Shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange “circuit breaker” rules. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged. As a result, the Fund could be adversely affected and be unable to implement its investment strategies in the event of an unscheduled closing.
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| Defiance PLTR LightningSpread(TM) Income ETF | Economic and Market Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Economic and Market Risk. Economies and financial markets throughout the world are becoming increasingly interconnected, which increases the likelihood that events or conditions in one country or region will adversely impact markets or issuers in other countries or regions. Securities in the Fund’s portfolio may underperform in comparison to securities in the general financial markets, a particular financial market, or other asset classes, due to a number of factors, including inflation (or expectations for inflation), deflation (or expectations for deflation), interest rates, global demand for particular products or resources, market instability, financial system instability, debt crises and downgrades, embargoes, tariffs, sanctions and other trade barriers, regulatory events, other governmental trade or market control programs and related geopolitical events. In addition, the value of the Fund’s investments may be negatively affected by the occurrence of global events such as war, terrorism, environmental disasters, natural disasters or events, country instability, and infectious disease epidemics or pandemics. The imposition by the U.S. of tariffs on goods imported from foreign countries and reciprocal tariffs levied on U.S. goods by those countries also may lead to volatility and instability in domestic and foreign markets.
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| Defiance PLTR LightningSpread(TM) Income ETF | High Portfolio Turnover Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | High Portfolio Turnover Risk. The Fund may actively and frequently trade all or a significant portion of the Fund’s holdings. A high portfolio turnover rate increases transaction costs, which may increase the Fund’s expenses. Frequent trading may also cause adverse tax consequences for investors in the Fund due to an increase in short-term capital gains.
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| Defiance PLTR LightningSpread(TM) Income ETF | Inflation Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Inflation Risk. Inflation risk is the risk that the value of assets or income from investments will be less in the future as inflation decreases the value of money. As inflation increases, the present value of the Fund’s assets and distributions, if any, may decline.
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| Defiance PLTR LightningSpread(TM) Income ETF | Market Capitalization Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Market Capitalization Risk
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| Defiance PLTR LightningSpread(TM) Income ETF | Large-Capitalization Investing [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Large-Capitalization Investing. The securities of large-capitalization companies may be relatively mature compared to smaller companies and therefore subject to slower growth during times of economic expansion. Large-capitalization companies may also be unable to respond quickly to new competitive challenges, such as changes in technology and consumer tastes.
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| Defiance PLTR LightningSpread(TM) Income ETF | Money Market Instrument Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Money Market Instrument Risk. The Fund may use a variety of money market instruments for cash management purposes, including money market funds, depositary accounts and repurchase agreements. Repurchase agreements are contracts in which a seller of securities agrees to buy the securities back at a specified time and price. Repurchase agreements may be subject to market and credit risk related to the collateral securing the repurchase agreement. Money market instruments, including money market funds, may lose money through fees or other means.
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| Defiance PLTR LightningSpread(TM) Income ETF | New Fund Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | New Fund Risk. The Fund is a recently organized management investment company with no operating history. As a result, prospective investors do not have a track record or history on which to base their investment decisions.
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| Defiance PLTR LightningSpread(TM) Income ETF | Operational Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Operational Risk. The Fund is subject to risks arising from various operational factors, including, but not limited to, human error, processing and communication errors, errors of the Fund’s service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund relies on third-parties for a range of services, including custody. Any delay or failure relating to engaging or maintaining such service providers may affect the Fund’s ability to meet its investment objective. Although the Fund and Adviser seek to reduce these operational risks through controls and procedures, there is no way to completely protect against such risks.
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| Defiance PLTR LightningSpread(TM) Income ETF | Tax Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Tax Risk. The Fund intends to elect and to qualify each year to be treated as a regulated investment company (a “RIC”) under Subchapter M of the Internal Revenue Code of 1986, as amended (“Code”). As a RIC, the Fund will not be subject to U.S. federal income tax on the portion of its net investment income and net capital gain that it distributes to shareholders, provided that it satisfies certain requirements of the Code. If the Fund does not qualify as a RIC for any taxable year and certain relief provisions are not available, the Fund’s taxable income will be subject to tax at the Fund level and to a further tax at the shareholder level when such income is distributed. To comply with the asset diversification test applicable to a RIC, the Fund will attempt to ensure that the value of swap contracts and options on shares of a single issuer does not exceed 25% of the Fund’s value at the close of any quarter. If the value of swap contracts and options on shares of a single issuer were to exceed 25% of the Fund’s total assets at the end of a tax quarter, the Fund, generally, has a grace period to cure such lack of compliance. If the Fund fails to timely cure, it may no longer be eligible to be treated as a RIC.
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| Defiance PLTR LightningSpread(TM) Income ETF | U.S. Government and U.S. Agency Obligations Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | U.S. Government and U.S. Agency Obligations Risk. The Fund may invest in securities issued by the U.S. government or its agencies or instrumentalities. U.S. Government obligations include securities issued or guaranteed as to principal and interest by the U.S. Government, its agencies or instrumentalities, such as the U.S. Treasury. Payment of principal and interest on U.S. Government obligations may be backed by the full faith and credit of the United States or may be backed solely by the issuing or guaranteeing agency or instrumentality itself. In the latter case, the investor must look principally to the agency or instrumentality issuing or guaranteeing the obligation for ultimate repayment, which agency or instrumentality may be privately owned. There can be no assurance that the U.S. Government would provide financial support to its agencies or instrumentalities (including government-sponsored enterprises) where it is not obligated to do so.
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| Defiance PLTR LightningSpread(TM) Income ETF | Software Industry Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Software Industry Risk. The software industry can be significantly affected by intense competition, aggressive pricing, technological innovations, and product obsolescence. Companies in the software industry are subject to significant competitive pressures, such as aggressive pricing, new market entrants, competition for market share, short product cycles due to an accelerated rate of technological developments and the potential for limited earnings and/or falling profit margins. These companies also face the risks that new services, equipment or technologies will not be accepted by consumers and businesses or will become rapidly obsolete. These factors can affect the profitability of these companies and, as a result, the value of their securities. Also, patent protection is integral to the success of many companies in this industry, and profitability can be affected materially by, among other things, the cost of obtaining (or failing to obtain) patent approvals, the cost of litigating patent infringement and the loss of patent protection for products (which significantly increases pricing pressures and can materially reduce profitability with respect to such products). In addition, many software companies have limited operating histories. Prices of these companies’ securities historically have been more volatile than other securities, especially over the short term.
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| Defiance PLTR LightningSpread(TM) Income ETF | Palantir Technologies Inc. Risks [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Palantir Technologies Inc. Risks. The Fund invests in derivative instruments that are based on the value of PLTR. This subjects the Fund to certain of the same risks as if it owned shares of PLTR, even though it does not. By virtue of the Fund’s investments in derivative instruments that are based on the value of PLTR, the Fund may also be subject to the following risks:
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| Defiance PLTR LightningSpread(TM) Income ETF | Indirect Investment in Palantir Technologies Inc. Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Indirect Investment in Palantir Technologies Inc. Risk. Palantir Technologies Inc. is not affiliated with the Trust, the Fund, the Adviser or their respective affiliates and is not involved with this offering in any way and has no obligation to consider your Shares in taking any corporate actions that might affect the value of Shares. Investors in the Fund will not have voting rights and will not be able to influence management of PLTR but will be exposed to the performance of PLTR (the Underlying Security). Investors in the Fund will not have rights to receive dividends or other distributions or any other rights with respect to the underlying stock but will be subject to declines in the performance of the underlying stock.
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| Defiance PLTR LightningSpread(TM) Income ETF | PLTR Trading Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | PLTR Trading Risk. The trading price of PLTR may be highly volatile and could continue to be subject to wide fluctuations in response to various factors. The stock market in general, and the market for technology companies in particular, has experienced extreme price and volume fluctuations that have often been unrelated or disproportionate to the operating performance of those companies. In particular, a large proportion of PLTR may be traded by short sellers which may put pressure on the supply and demand for the common stock of PLTR, further influencing volatility in its market price. Public perception and other factors outside of the control of PLTR may additionally impact PLTR’s stock price due to PLTR garnering a disproportionate degree of public attention, regardless of actual operating performance. In addition, in the past, following periods of volatility in the overall market and the market price of a particular company’s securities, securities class action litigation has often been instituted against companies such as these. Moreover, stockholder litigation like this has been filed against PLTR in the past. While PLTR continues to defend such actions, any judgment against PLTR, or any future stockholder litigation could result in substantial costs and a diversion of the management of PLTR’s attention and resources. If PLTR trading is halted, trading in Shares of the Fund may be impacted, either temporarily or indefinitely.
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| Defiance PLTR LightningSpread(TM) Income ETF | Palantir Technologies Inc. Performance Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Palantir Technologies Inc. Performance Risk. Palantir Technologies Inc. may fail to meet its publicly announced guidelines or other expectations about its business, which could cause the price of PLTR to decline. Palantir Technologies Inc. provides guidance regarding its expected financial and business performance, such as projections regarding sales and production, as well as anticipated future revenues, gross margins, profitability and cash flows. Correctly identifying key factors affecting business conditions and predicting future events is inherently an uncertain process, and the guidance Palantir Technologies Inc. provides may not ultimately be accurate and has in the past been inaccurate in certain respects, such as the timing of new product manufacturing ramps. The guidance is based on certain assumptions such as those relating to global and local economic conditions, anticipated production and sales volumes (which generally are not linear throughout a given period), average sales prices, supplier and commodity costs, and planned cost reductions. If Palantir Technologies Inc.’s guidance is not accurate or varies from actual results due to its inability to meet the assumptions or the impact on its financial performance that could occur as a result of various risks and uncertainties, the market value of common stock issued by Palantir Technologies Inc. could decline significantly.
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| Defiance PLTR LightningSpread(TM) Income ETF | AI Platform Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | AI Platform Risk. Palantir Technologies Inc. has launched an AI (artificial intelligence) platform, which subjects Palantir Technologies Inc. to additional risks, including challenges in developing and deploying new technologies to meet customer needs and ensuring compatibility with third-party products and services. Palantir Technologies Inc. may struggle to hire, retain, and train qualified personnel, which is crucial for meeting customer demand. The use of AI could lead to reputational harm or liability issues, and there may be difficulties in obtaining, maintaining, protecting, and enforcing intellectual property rights. Additionally, the platform could encounter real or perceived errors, failures, defects, or bugs, and reliance on third-party technology could pose risks if it becomes difficult to replace or causes errors. Finally, Palantir Technologies Inc.’s AI platform will be subject to complex and evolving U.S. and non-U.S. laws and regulations regarding privacy, data protection, security, and technology protection.
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| Defiance PLTR LightningSpread(TM) Income ETF | Risk Lose Money [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | The Fund may not achieve its investment objective and there is a risk that you could lose all of your money invested in the Fund. | ||||||||||||||||||||||||
| Defiance PLTR LightningSpread(TM) Income ETF | Risk Nondiversified Status [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Non-Diversification Risk. Because the Fund is “non-diversified,” it may invest a greater percentage of its assets in the securities of a single issuer or a smaller number of issuers than if it was a diversified fund. As a result, a decline in the value of an investment in a single issuer or a smaller number of issuers could cause the Fund’s overall value to decline to a greater degree than if the Fund held a more diversified portfolio.
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| Defiance TSLA LightningSpread(TM) Income ETF | Derivatives Risks [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Derivatives Risks. Derivatives are financial instruments that derive value from the underlying reference asset or assets, such as stocks, bonds, or funds (including ETFs), interest rates or indexes. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other ordinary investments, including risk related to the market, imperfect correlation with underlying investments or the Fund’s other portfolio holdings, higher price volatility, lack of availability, counterparty risk, liquidity, valuation and legal restrictions. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with ordinary portfolio securities transactions. The use of derivatives may result in larger losses or smaller gains than directly investing in securities. When the Fund uses derivatives, there may be an imperfect correlation between the value of the underlying reference asset and the derivative, which may prevent the Fund from achieving its investment objective. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of those amounts initially invested. In addition, the Fund’s investments in derivatives are subject to the following risks:
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| Defiance TSLA LightningSpread(TM) Income ETF | Options Contracts [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
Although the Fund may use options to provide synthetic exposure to the Underlying Security, option prices may not perfectly replicate the rate of change of the Underlying Security prior to expiration, resulting in potential tracking differences. Similarly, the premiums received from selling put spreads are influenced by market volatility and the specific strike prices selected, which can vary based on market conditions.
The Fund may experience downside risk from certain options positions, including the potential for purchased options to expire worthless, resulting in the loss of premiums paid. Writing (selling) options also exposes the Fund to risk of loss, which may exceed the premiums received. For example, selling put options exposes the Fund to the risk that the price of the Underlying Security declines below the strike price, potentially resulting in substantial losses. Selling put spreads limits these losses to the difference between the strike prices of the sold and purchased puts, less the net premium received, but does not eliminate risk.
The Fund may encounter challenges in managing written options positions, particularly in volatile or illiquid markets, where closing or adjusting positions may be difficult or costly. Additionally, the process of rolling options positions, replacing expiring options with new contracts to maintain exposure, can involve significant transaction costs and expose the Fund to additional risks, such as adverse price movements during the roll period or reduced liquidity in the desired contracts. The Fund may also face margin requirements associated with written options, which could require the Fund to liquidate other assets to meet these obligations, potentially at unfavorable prices. Collectively, these risks may result in losses or reduced investment efficiency for the Fund.
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| Defiance TSLA LightningSpread(TM) Income ETF | Swap Agreements [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
The swap agreements in which the Fund invests are generally traded in the over-the-counter market, which generally has less transparency than exchange-traded derivative instruments. In a standard swap transaction, two parties agree to exchange the return (or differentials in rates of return) earned or realized on particular predetermined reference assets, securities, or instruments. The gross return to be exchanged or “swapped” between the parties is calculated based on a notional amount or the return on or change in value of a particular dollar amount invested in the reference asset.
If the Underlying Security experiences a significant price movement that causes a material change in the Fund’s net assets, the terms of a swap agreement between the Fund and its counterparty may permit the counterparty to close out the swap transaction with the Fund. In that event, the Fund may be unable to enter into another swap agreement or invest in other derivatives to maintain exposure consistent with its investment objective. This may temporarily reduce the Fund’s ability to maintain its intended level of synthetic exposure until replacement transactions can be established.
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| Defiance TSLA LightningSpread(TM) Income ETF | Counterparty Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Counterparty Risk. The Fund is subject to counterparty risk by virtue of its investments in options contracts. Transactions in some types of derivatives, including options, are required to be centrally cleared (“cleared derivatives”). In a transaction involving cleared derivatives, the Fund’s counterparty is a clearing house rather than a bank or broker. Since the Fund is not a member of clearing houses and only members of a clearing house (“clearing members”) can participate directly in the clearing house, the Fund will hold cleared derivatives through accounts at clearing members. In cleared derivatives positions, the Fund will make payments (including margin payments) to and receive payments from a clearing house through their accounts at clearing members. Customer funds held at a clearing organization in connection with any options contracts are held in a commingled omnibus account and are not identified to the name of the clearing member’s individual customers. As a result, assets deposited by the Fund with any clearing member as margin for options may, in certain circumstances, be used to satisfy losses of other clients of the Fund’s clearing member. In addition, although clearing members guarantee performance of their clients’ obligations to the clearing house, there is a risk that the assets of the Fund might not be fully protected in the event of the clearing member’s bankruptcy, as the Fund would be limited to recovering only a pro rata share of all available funds segregated on behalf of the clearing member’s customers for the relevant account class. The Fund is also subject to the risk that a limited number of clearing members are willing to transact on the Fund’s behalf, which heightens the risks associated with a clearing member’s default. This risk is greater for the Fund as it seeks to hold options contracts on a single security, and not a broader range of options contracts, which may limit the number of clearing members that are willing to transact on the Fund’s behalf. If a clearing member defaults the Fund could lose some or all of the benefits of a transaction entered into by the Fund with the clearing member. If the Fund cannot find a clearing member to transact with on the Fund’s behalf, the Fund may be unable to effectively implement its investment strategy.
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| Defiance TSLA LightningSpread(TM) Income ETF | Distribution Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Distribution Risk. As part of the Fund’s investment objective, the Fund seeks to provide current income twice weekly. There is no assurance that the Fund will make more than one, or any, distribution in a given week. If the Fund does make distributions, the amounts of such distributions will likely vary greatly from one distribution to the next.
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| Defiance TSLA LightningSpread(TM) Income ETF | NAV Erosion Risk Due to Distributions [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
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| Defiance TSLA LightningSpread(TM) Income ETF | Equity Market Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Equity Market Risk. Common stocks are generally exposed to greater risk than other types of securities, such as preferred stock and debt obligations, because common stockholders generally have inferior rights to receive payment from specific issuers. The equity securities held in the Fund’s portfolio may experience sudden, unpredictable drops in value or long periods of decline in value. This may occur because of factors that affect securities markets generally or factors affecting specific issuers, industries, or sectors in which the Fund invests. Common stocks, such as those held by the Fund, are generally exposed to greater risk than other types of securities, such as preferred stock and debt obligations, because common stockholders generally have inferior rights to receive payment from issuers.
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| Defiance TSLA LightningSpread(TM) Income ETF | Concentration Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Concentration Risk. The Fund’s investment exposure will be concentrated in (or substantially exposed to) the same industry or group of industries assigned to the Underlying Security. As a result, the Fund may be more susceptible to loss due to adverse occurrences that affect the price of such industries more than the market as a whole.
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| Defiance TSLA LightningSpread(TM) Income ETF | ETF Risks [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | ETF Risks
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| Defiance TSLA LightningSpread(TM) Income ETF | Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that are authorized to purchase and redeem Shares directly from the Fund (known as “Authorized Participants” or “APs”). In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services; or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
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| Defiance TSLA LightningSpread(TM) Income ETF | Cash Redemption Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Cash Redemption Risk. The Fund’s investment strategy may require it to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. For example, the Fund may not be able to redeem in-kind certain securities held by the Fund (e.g., derivative instruments). In such a case, the Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used. By paying out higher annual capital gain distributions, investors may be subjected to increased capital gains taxes. Additionally, there may be brokerage costs or taxable gains or losses that may be imposed on the Fund in connection with a cash redemption that may not have occurred if the Fund had made a redemption in-kind. These costs could decrease the value of the Fund to the extent they are not offset by a transaction fee payable by an AP.
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| Defiance TSLA LightningSpread(TM) Income ETF | Costs of Buying or Selling Shares [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
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| Defiance TSLA LightningSpread(TM) Income ETF | Shares May Trade at Prices Other Than NAV [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
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| Defiance TSLA LightningSpread(TM) Income ETF | Trading [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Trading. Although Shares are listed on a national securities exchange, such as Cboe BZX Exchange, Inc. (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that an active trading market for the Shares will develop or be maintained or that the Shares will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Shares. Shares trade on the Exchange at market price that may be below, at or above the Fund’s NAV. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable. In addition, trading in Shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange “circuit breaker” rules. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged. As a result, the Fund could be adversely affected and be unable to implement its investment strategies in the event of an unscheduled closing.
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| Defiance TSLA LightningSpread(TM) Income ETF | Economic and Market Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Economic and Market Risk. Economies and financial markets throughout the world are becoming increasingly interconnected, which increases the likelihood that events or conditions in one country or region will adversely impact markets or issuers in other countries or regions. Securities in the Fund’s portfolio may underperform in comparison to securities in the general financial markets, a particular financial market, or other asset classes, due to a number of factors, including inflation (or expectations for inflation), deflation (or expectations for deflation), interest rates, global demand for particular products or resources, market instability, financial system instability, debt crises and downgrades, embargoes, tariffs, sanctions and other trade barriers, regulatory events, other governmental trade or market control programs and related geopolitical events. In addition, the value of the Fund’s investments may be negatively affected by the occurrence of global events such as war, terrorism, environmental disasters, natural disasters or events, country instability, and infectious disease epidemics or pandemics. The imposition by the U.S. of tariffs on goods imported from foreign countries and reciprocal tariffs levied on U.S. goods by those countries also may lead to volatility and instability in domestic and foreign markets.
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| Defiance TSLA LightningSpread(TM) Income ETF | High Portfolio Turnover Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | High Portfolio Turnover Risk. The Fund may actively and frequently trade all or a significant portion of the Fund’s holdings. A high portfolio turnover rate increases transaction costs, which may increase the Fund’s expenses. Frequent trading may also cause adverse tax consequences for investors in the Fund due to an increase in short-term capital gains.
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| Defiance TSLA LightningSpread(TM) Income ETF | Inflation Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Inflation Risk. Inflation risk is the risk that the value of assets or income from investments will be less in the future as inflation decreases the value of money. As inflation increases, the present value of the Fund’s assets and distributions, if any, may decline.
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| Defiance TSLA LightningSpread(TM) Income ETF | Market Capitalization Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Market Capitalization Risk
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| Defiance TSLA LightningSpread(TM) Income ETF | Large-Capitalization Investing [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Large-Capitalization Investing. The securities of large-capitalization companies may be relatively mature compared to smaller companies and therefore subject to slower growth during times of economic expansion. Large-capitalization companies may also be unable to respond quickly to new competitive challenges, such as changes in technology and consumer tastes.
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| Defiance TSLA LightningSpread(TM) Income ETF | Money Market Instrument Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Money Market Instrument Risk. The Fund may use a variety of money market instruments for cash management purposes, including money market funds, depositary accounts and repurchase agreements. Repurchase agreements are contracts in which a seller of securities agrees to buy the securities back at a specified time and price. Repurchase agreements may be subject to market and credit risk related to the collateral securing the repurchase agreement. Money market instruments, including money market funds, may lose money through fees or other means.
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| Defiance TSLA LightningSpread(TM) Income ETF | New Fund Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | New Fund Risk. The Fund is a recently organized management investment company with no operating history. As a result, prospective investors do not have a track record or history on which to base their investment decisions.
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| Defiance TSLA LightningSpread(TM) Income ETF | Operational Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Operational Risk. The Fund is subject to risks arising from various operational factors, including, but not limited to, human error, processing and communication errors, errors of the Fund’s service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund relies on third-parties for a range of services, including custody. Any delay or failure relating to engaging or maintaining such service providers may affect the Fund’s ability to meet its investment objective. Although the Fund and Adviser seek to reduce these operational risks through controls and procedures, there is no way to completely protect against such risks.
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| Defiance TSLA LightningSpread(TM) Income ETF | Tax Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Tax Risk. The Fund intends to elect and to qualify each year to be treated as a regulated investment company (a “RIC”) under Subchapter M of the Internal Revenue Code of 1986, as amended (“Code”). As a RIC, the Fund will not be subject to U.S. federal income tax on the portion of its net investment income and net capital gain that it distributes to shareholders, provided that it satisfies certain requirements of the Code. If the Fund does not qualify as a RIC for any taxable year and certain relief provisions are not available, the Fund’s taxable income will be subject to tax at the Fund level and to a further tax at the shareholder level when such income is distributed. To comply with the asset diversification test applicable to a RIC, the Fund will attempt to ensure that the value of swap contracts and options on shares of a single issuer does not exceed 25% of the Fund’s value at the close of any quarter. If the value of swap contracts and options on shares of a single issuer were to exceed 25% of the Fund’s total assets at the end of a tax quarter, the Fund, generally, has a grace period to cure such lack of compliance. If the Fund fails to timely cure, it may no longer be eligible to be treated as a RIC.
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| Defiance TSLA LightningSpread(TM) Income ETF | U.S. Government and U.S. Agency Obligations Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | U.S. Government and U.S. Agency Obligations Risk. The Fund may invest in securities issued by the U.S. government or its agencies or instrumentalities. U.S. Government obligations include securities issued or guaranteed as to principal and interest by the U.S. Government, its agencies or instrumentalities, such as the U.S. Treasury. Payment of principal and interest on U.S. Government obligations may be backed by the full faith and credit of the United States or may be backed solely by the issuing or guaranteeing agency or instrumentality itself. In the latter case, the investor must look principally to the agency or instrumentality issuing or guaranteeing the obligation for ultimate repayment, which agency or instrumentality may be privately owned. There can be no assurance that the U.S. Government would provide financial support to its agencies or instrumentalities (including government-sponsored enterprises) where it is not obligated to do so.
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| Defiance TSLA LightningSpread(TM) Income ETF | Tesla, Inc. Risks [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Tesla, Inc. Risks. The Fund invests in derivative instruments that are based on the value of TSLA. This subjects the Fund to certain of the same risks as if it owned shares of TSLA, even though it does not. By virtue of the Fund’s investments in derivative instruments that are based on the value of TSLA, the Fund may also be subject to the following risks:
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| Defiance TSLA LightningSpread(TM) Income ETF | Indirect Investment In Tsla Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Indirect Investment in TSLA Risk. Tesla, Inc. is not affiliated with the Trust, the Fund, the Adviser, or their respective affiliates and is not involved with this offering in any way and has no obligation to consider your Shares in taking any corporate actions that might affect the value of Shares. Investors in the Fund will not have voting rights and will not be able to influence management of Tesla, Inc. but will be exposed to the performance of TSLA (an Underlying Security). Investors in the Fund will not have rights to receive dividends or other distributions or any other rights with respect to the Underlying Security but will be subject to declines in the performance of the Underlying Security.
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| Defiance TSLA LightningSpread(TM) Income ETF | Tsla Trading Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | TSLA Trading Risk. The trading price of TSLA may be highly volatile and could continue to be subject to wide fluctuations in response to various factors. The stock market in general, and the market for technology companies in particular, has experienced extreme price and volume fluctuations that have often been unrelated or disproportionate to the operating performance of those companies. In particular, a large proportion of TSLA may be traded by short sellers which may put pressure on the supply and demand for the common stock of Tesla, Inc., further influencing volatility in its market price. Public perception and other factors outside of the control of Tesla, Inc. may additionally impact TSLA’s stock price due to Tesla, Inc. garnering a disproportionate degree of public attention, regardless of actual operating performance. In addition, in the past, following periods of volatility in the overall market and the market price of a particular company’s securities, securities class action litigation has often been instituted against companies such as these. Moreover, stockholder litigation like this has been filed against Tesla, Inc. in the past. While Tesla, Inc. continues to defend such actions, any judgment against Tesla, Inc., or any future stockholder litigation could result in substantial costs and a diversion of the management of Tesla, Inc.’s attention and resources. If TSLA trading is halted, trading in Shares of the Fund may be impacted, either temporarily or indefinitely.
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| Defiance TSLA LightningSpread(TM) Income ETF | Tesla, Inc. Performance Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Tesla, Inc. Performance Risk. Tesla, Inc. may fail to meet its publicly announced guidelines or other expectations about its business, which could cause the price of TSLA to decline. Tesla, Inc. provides guidance regarding its expected financial and business performance, such as projections regarding sales and production, as well as anticipated future revenues, gross margins, profitability and cash flows. Correctly identifying key factors affecting business conditions and predicting future events is inherently an uncertain process, and the guidance Tesla, Inc. provides may not ultimately be accurate and has in the past been inaccurate in certain respects, such as the timing of new product manufacturing ramps. The guidance is based on certain assumptions such as those relating to global and local economic conditions, anticipated production and sales volumes (which generally are not linear throughout a given period), average sales prices, supplier and commodity costs, and planned cost reductions. If Tesla, Inc.’s guidance is not accurate or varies from actual results due to its inability to meet the assumptions or the impact on its financial performance that could occur as a result of various risks and uncertainties, the market value of common stock issued by Tesla, Inc. could decline significantly.
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| Defiance TSLA LightningSpread(TM) Income ETF | Electric Vehicles Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Electric Vehicles Risk. The future growth and success of Tesla, Inc. are dependent upon consumers’ demand for electric vehicles, and specifically, its vehicles in an automotive industry that is generally competitive, cyclical and volatile. If the market for electric vehicles in general and Tesla, Inc. vehicles in particular does not develop as Tesla, Inc. expects, develops more slowly than it expects, or if demand for its vehicles decreases in its markets or its vehicles compete with each other, the business, prospects, financial condition and operating results of Tesla, Inc. may be harmed. Tesla, Inc. is still at an earlier stage of development and have limited resources and production relative to established competitors that offer internal combustion engine vehicles. In addition, electric vehicles still comprise a small percentage of overall vehicle sales. As a result, the market for Tesla, Inc. vehicles could be negatively affected by numerous factors, such as: (i) perceptions about electric vehicle features, quality, safety, performance and cost; (ii) perceptions about the limited range over which electric vehicles may be driven on a single battery charge, and access to charging facilities; (iii) competition, including from other types of alternative fuel vehicles, plug-in hybrid electric vehicles and high fuel-economy internal combustion engine vehicles; (iv) volatility in the cost of oil and gasoline, such as wide fluctuations in crude oil prices; (v) government regulations and economic incentives; and (vi) concerns about the future viability of Tesla, Inc. Finally, the target demographics for Tesla, Inc. vehicles are highly competitive. Sales of vehicles in the automotive industry tend to be cyclical in many markets, which may expose Tesla, Inc. to further volatility.
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| Defiance TSLA LightningSpread(TM) Income ETF | Automotive Companies Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Automotive Companies Risk. The automotive industry can be highly cyclical, and companies in the industry may suffer periodic operating losses. Automotive companies can be significantly affected by labor relations, fluctuating component prices and supplier disruptions. Developments in automotive technologies (e.g., autonomous vehicle technologies) may require significant capital expenditures that may not generate profits for several years, if ever. Automotive companies may be significantly subject to government policies and regulations regarding imports and exports of automotive products. Governmental policies affecting the automotive industry, such as taxes, tariffs, duties, subsidies, and import and export restrictions on automotive products can influence industry profitability. In addition, such companies must comply with environmental laws and regulations, for which there may be severe consequences for non-compliance. While most of the major automotive manufacturers are large companies, certain others may be non-diversified in both product line and customer base and may be more vulnerable to certain events that may negatively impact the automotive industry.
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| Defiance TSLA LightningSpread(TM) Income ETF | Elon Musk’s Influence on TSLA Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Elon Musk’s Influence on TSLA Risk. The Fund’s performance is closely tied to the stock price of TSLA, which may be significantly impacted by the actions, decisions, and public statements of its CEO, Elon Musk. His social media activity, interviews, and public remarks have historically caused sharp volatility in TSLA’s stock price and have, at times, resulted in regulatory scrutiny and legal proceedings. Additionally, Mr. Musk’s leadership decisions, including strategic shifts or changes in Tesla’s business model, could introduce uncertainty. His involvement in multiple high-profile ventures, such as SpaceX and X (formerly Twitter), may also raise concerns about his focus on Tesla. Furthermore, any potential reduction in his role or departure from Tesla could negatively affect investor sentiment. Given Mr. Musk’s influence, TSLA’s valuation may be subject to sudden and unpredictable changes, which could materially impact the Fund’s performance.
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| Defiance TSLA LightningSpread(TM) Income ETF | Risk Lose Money [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | The Fund may not achieve its investment objective and there is a risk that you could lose all of your money invested in the Fund. | ||||||||||||||||||||||||
| Defiance TSLA LightningSpread(TM) Income ETF | Risk Nondiversified Status [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Non-Diversification Risk. Because the Fund is “non-diversified,” it may invest a greater percentage of its assets in the securities of a single issuer or a smaller number of issuers than if it was a diversified fund. As a result, a decline in the value of an investment in a single issuer or a smaller number of issuers could cause the Fund’s overall value to decline to a greater degree than if the Fund held a more diversified portfolio.
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| Defiance Bitcoin LightningSpread(TM) Income ETF | Derivatives Risks [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Derivatives Risks. Derivatives are financial instruments that derive value from the underlying reference asset or assets, such as stocks, bonds, or funds (including ETFs), interest rates or indexes. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other ordinary investments, including risk related to the market, imperfect correlation with underlying investments or the Fund’s other portfolio holdings, higher price volatility, lack of availability, counterparty risk, liquidity, valuation and legal restrictions. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with ordinary portfolio securities transactions. The use of derivatives may result in larger losses or smaller gains than directly investing in securities. When the Fund uses derivatives, there may be an imperfect correlation between the value of the underlying reference asset and the derivative, which may prevent the Fund from achieving its investment objective. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of those amounts initially invested. In addition, the Fund’s investments in derivatives are subject to the following risks:
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| Defiance Bitcoin LightningSpread(TM) Income ETF | Options Contracts [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
Although the Fund may use options to provide synthetic exposure to the Underlying ETP, option prices may not perfectly replicate the rate of change of the Underlying ETP prior to expiration, resulting in potential tracking differences. Similarly, the premiums received from selling put spreads are influenced by market volatility and the specific strike prices selected, which can vary based on market conditions.
The Fund may experience downside risk from certain options positions, including the potential for purchased options to expire worthless, resulting in the loss of premiums paid. Writing (selling) options also exposes the Fund to risk of loss, which may exceed the premiums received. For example, selling put options exposes the Fund to the risk that the price of the Underlying ETP declines below the strike price, potentially resulting in substantial losses. Selling put spreads limits these losses to the difference between the strike prices of the sold and purchased puts, less the net premium received, but does not eliminate risk.
The Fund may encounter challenges in managing written options positions, particularly in volatile or illiquid markets, where closing or adjusting positions may be difficult or costly. Additionally, the process of rolling options positions, replacing expiring options with new contracts to maintain exposure, can involve significant transaction costs and expose the Fund to additional risks, such as adverse price movements during the roll period or reduced liquidity in the desired contracts. The Fund may also face margin requirements associated with written options, which could require the Fund to liquidate other assets to meet these obligations, potentially at unfavorable prices. Collectively, these risks may result in losses or reduced investment efficiency for the Fund.
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| Defiance Bitcoin LightningSpread(TM) Income ETF | Swap Agreements [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
The swap agreements in which the Fund invests are generally traded in the over-the-counter market, which generally has less transparency than exchange-traded derivative instruments. In a standard swap transaction, two parties agree to exchange the return (or differentials in rates of return) earned or realized on particular predetermined reference assets, securities, or instruments. The gross return to be exchanged or “swapped” between the parties is calculated based on a notional amount or the return on or change in value of a particular dollar amount invested in the reference asset.
If the Underlying ETP experiences a significant price movement that causes a material change in the Fund’s net assets, the terms of a swap agreement between the Fund and its counterparty may permit the counterparty to close out the swap transaction with the Fund. In that event, the Fund may be unable to enter into another swap agreement or invest in other derivatives to maintain exposure consistent with its investment objective. This may temporarily reduce the Fund’s ability to maintain its intended level of synthetic exposure until replacement transactions can be established.
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| Defiance Bitcoin LightningSpread(TM) Income ETF | Counterparty Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Counterparty Risk. The Fund is subject to counterparty risk by virtue of its investments in options contracts. Transactions in some types of derivatives, including options, are required to be centrally cleared (“cleared derivatives”). In a transaction involving cleared derivatives, the Fund’s counterparty is a clearing house rather than a bank or broker. Since the Fund is not a member of clearing houses and only members of a clearing house (“clearing members”) can participate directly in the clearing house, the Fund will hold cleared derivatives through accounts at clearing members. In cleared derivatives positions, the Fund will make payments (including margin payments) to and receive payments from a clearing house through their accounts at clearing members. Customer funds held at a clearing organization in connection with any options contracts are held in a commingled omnibus account and are not identified to the name of the clearing member’s individual customers. As a result, assets deposited by the Fund with any clearing member as margin for options may, in certain circumstances, be used to satisfy losses of other clients of the Fund’s clearing member. In addition, although clearing members guarantee performance of their clients’ obligations to the clearing house, there is a risk that the assets of the Fund might not be fully protected in the event of the clearing member’s bankruptcy, as the Fund would be limited to recovering only a pro rata share of all available funds segregated on behalf of the clearing member’s customers for the relevant account class. The Fund is also subject to the risk that a limited number of clearing members are willing to transact on the Fund’s behalf, which heightens the risks associated with a clearing member’s default. This risk is greater for the Fund as it seeks to hold options contracts on a single security, and not a broader range of options contracts, which may limit the number of clearing members that are willing to transact on the Fund’s behalf. If a clearing member defaults the Fund could lose some or all of the benefits of a transaction entered into by the Fund with the clearing member. If the Fund cannot find a clearing member to transact with on the Fund’s behalf, the Fund may be unable to effectively implement its investment strategy.
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| Defiance Bitcoin LightningSpread(TM) Income ETF | Distribution Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Distribution Risk. As part of the Fund’s investment objective, the Fund seeks to provide current income twice weekly. There is no assurance that the Fund will make more than one, or any, distribution in a given week. If the Fund does make distributions, the amounts of such distributions will likely vary greatly from one distribution to the next.
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| Defiance Bitcoin LightningSpread(TM) Income ETF | NAV Erosion Risk Due to Distributions [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
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| Defiance Bitcoin LightningSpread(TM) Income ETF | Equity Market Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Equity Market Risk. Common stocks are generally exposed to greater risk than other types of securities, such as preferred stock and debt obligations, because common stockholders generally have inferior rights to receive payment from specific issuers. The equity securities held in the Fund’s portfolio may experience sudden, unpredictable drops in value or long periods of decline in value. This may occur because of factors that affect securities markets generally or factors affecting specific issuers, industries, or sectors in which the Fund invests. Common stocks, such as those held by the Fund, are generally exposed to greater risk than other types of securities, such as preferred stock and debt obligations, because common stockholders generally have inferior rights to receive payment from issuers.
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| Defiance Bitcoin LightningSpread(TM) Income ETF | Concentration Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Concentration Risk. The Fund’s investment exposure will be concentrated in (or substantially exposed to) the same industry or groups of industries, if any, to which the Underlying ETP is concentrated. As a result, the Fund may be more susceptible to loss due to adverse occurrences that affect the price of such industries more than the market as a whole.
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| Defiance Bitcoin LightningSpread(TM) Income ETF | ETF Risks [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | ETF Risks
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| Defiance Bitcoin LightningSpread(TM) Income ETF | Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that are authorized to purchase and redeem Shares directly from the Fund (known as “Authorized Participants” or “APs”). In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services; or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
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| Defiance Bitcoin LightningSpread(TM) Income ETF | Cash Redemption Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Cash Redemption Risk. The Fund’s investment strategy may require it to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. For example, the Fund may not be able to redeem in-kind certain securities held by the Fund (e.g., derivative instruments). In such a case, the Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used. By paying out higher annual capital gain distributions, investors may be subjected to increased capital gains taxes. Additionally, there may be brokerage costs or taxable gains or losses that may be imposed on the Fund in connection with a cash redemption that may not have occurred if the Fund had made a redemption in-kind. These costs could decrease the value of the Fund to the extent they are not offset by a transaction fee payable by an AP.
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| Defiance Bitcoin LightningSpread(TM) Income ETF | Costs of Buying or Selling Shares [Member] | |||||||||||||||||||||||||
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| Defiance Bitcoin LightningSpread(TM) Income ETF | Shares May Trade at Prices Other Than NAV [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
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| Defiance Bitcoin LightningSpread(TM) Income ETF | Trading [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Trading. Although Shares are listed on a national securities exchange, such as Cboe BZX Exchange, Inc. (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that an active trading market for the Shares will develop or be maintained or that the Shares will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Shares. Shares trade on the Exchange at market price that may be below, at or above the Fund’s NAV. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable. In addition, trading in Shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange “circuit breaker” rules. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged. As a result, the Fund could be adversely affected and be unable to implement its investment strategies in the event of an unscheduled closing.
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| Defiance Bitcoin LightningSpread(TM) Income ETF | Economic and Market Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Economic and Market Risk. Economies and financial markets throughout the world are becoming increasingly interconnected, which increases the likelihood that events or conditions in one country or region will adversely impact markets or issuers in other countries or regions. Securities in the Fund’s portfolio may underperform in comparison to securities in the general financial markets, a particular financial market, or other asset classes, due to a number of factors, including inflation (or expectations for inflation), deflation (or expectations for deflation), interest rates, global demand for particular products or resources, market instability, financial system instability, debt crises and downgrades, embargoes, tariffs, sanctions and other trade barriers, regulatory events, other governmental trade or market control programs and related geopolitical events. In addition, the value of the Fund’s investments may be negatively affected by the occurrence of global events such as war, terrorism, environmental disasters, natural disasters or events, country instability, and infectious disease epidemics or pandemics. The imposition by the U.S. of tariffs on goods imported from foreign countries and reciprocal tariffs levied on U.S. goods by those countries also may lead to volatility and instability in domestic and foreign markets.
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| Defiance Bitcoin LightningSpread(TM) Income ETF | High Portfolio Turnover Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | High Portfolio Turnover Risk. The Fund may actively and frequently trade all or a significant portion of the Fund’s holdings. A high portfolio turnover rate increases transaction costs, which may increase the Fund’s expenses. Frequent trading may also cause adverse tax consequences for investors in the Fund due to an increase in short-term capital gains.
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| Defiance Bitcoin LightningSpread(TM) Income ETF | Inflation Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Inflation Risk. Inflation risk is the risk that the value of assets or income from investments will be less in the future as inflation decreases the value of money. As inflation increases, the present value of the Fund’s assets and distributions, if any, may decline.
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| Defiance Bitcoin LightningSpread(TM) Income ETF | Money Market Instrument Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Money Market Instrument Risk. The Fund may use a variety of money market instruments for cash management purposes, including money market funds, depositary accounts and repurchase agreements. Repurchase agreements are contracts in which a seller of securities agrees to buy the securities back at a specified time and price. Repurchase agreements may be subject to market and credit risk related to the collateral securing the repurchase agreement. Money market instruments, including money market funds, may lose money through fees or other means.
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| Defiance Bitcoin LightningSpread(TM) Income ETF | New Fund Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | New Fund Risk. The Fund is a recently organized management investment company with no operating history. As a result, prospective investors do not have a track record or history on which to base their investment decisions.
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| Defiance Bitcoin LightningSpread(TM) Income ETF | Operational Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Operational Risk. The Fund is subject to risks arising from various operational factors, including, but not limited to, human error, processing and communication errors, errors of the Fund’s service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund relies on third-parties for a range of services, including custody. Any delay or failure relating to engaging or maintaining such service providers may affect the Fund’s ability to meet its investment objective. Although the Fund and Adviser seek to reduce these operational risks through controls and procedures, there is no way to completely protect against such risks.
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| Defiance Bitcoin LightningSpread(TM) Income ETF | Tax Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Tax Risk. The Fund intends to elect and to qualify each year to be treated as a regulated investment company (a “RIC”) under Subchapter M of the Internal Revenue Code of 1986, as amended (“Code”). As a RIC, the Fund will not be subject to U.S. federal income tax on the portion of its net investment income and net capital gain that it distributes to shareholders, provided that it satisfies certain requirements of the Code. If the Fund does not qualify as a RIC for any taxable year and certain relief provisions are not available, the Fund’s taxable income will be subject to tax at the Fund level and to a further tax at the shareholder level when such income is distributed. To comply with the asset diversification test applicable to a RIC, the Fund will attempt to ensure that the value of swap contracts and options on shares of a single issuer does not exceed 25% of the Fund’s value at the close of any quarter. If the value of swap contracts and options on shares of a single issuer were to exceed 25% of the Fund’s total assets at the end of a tax quarter, the Fund, generally, has a grace period to cure such lack of compliance. If the Fund fails to timely cure, it may no longer be eligible to be treated as a RIC.
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| Defiance Bitcoin LightningSpread(TM) Income ETF | U.S. Government and U.S. Agency Obligations Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | U.S. Government and U.S. Agency Obligations Risk. The Fund may invest in securities issued by the U.S. government or its agencies or instrumentalities. U.S. Government obligations include securities issued or guaranteed as to principal and interest by the U.S. Government, its agencies or instrumentalities, such as the U.S. Treasury. Payment of principal and interest on U.S. Government obligations may be backed by the full faith and credit of the United States or may be backed solely by the issuing or guaranteeing agency or instrumentality itself. In the latter case, the investor must look principally to the agency or instrumentality issuing or guaranteeing the obligation for ultimate repayment, which agency or instrumentality may be privately owned. There can be no assurance that the U.S. Government would provide financial support to its agencies or instrumentalities (including government-sponsored enterprises) where it is not obligated to do so.
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| Defiance Bitcoin LightningSpread(TM) Income ETF | Digital Assets Risk [Member] | |||||||||||||||||||||||||
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| Defiance Bitcoin LightningSpread(TM) Income ETF | IBIT Risks [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | IBIT Risks. The Fund invests in instruments based on the value of IBIT. This subjects the Fund to certain of the same risks as if it owned shares of IBIT as well as the risks associated with the assets held by IBIT, even though the Fund does not hold those assets directly. The value of IBIT will fluctuate with the market price of bitcoin, which may be affected by economic conditions, regulatory developments, supply and demand for bitcoin, technological developments, investor sentiment and other factors. Brokerage, custody, management fees and other expenses may negatively impact the performance of IBIT and therefore the value of the Fund’s shares.
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| Defiance Bitcoin LightningSpread(TM) Income ETF | Digital Asset and Market Risks [Member] | |||||||||||||||||||||||||
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| Defiance Bitcoin LightningSpread(TM) Income ETF | Custody and Operational Risks [Member] | |||||||||||||||||||||||||
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| Defiance Bitcoin LightningSpread(TM) Income ETF | Regulatory Risk [Member] | |||||||||||||||||||||||||
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| Defiance Bitcoin LightningSpread(TM) Income ETF | Non-Diversification and Concentration Risk [Member] | |||||||||||||||||||||||||
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| Defiance Bitcoin LightningSpread(TM) Income ETF | No 1940 Act Protections [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
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| Defiance Bitcoin LightningSpread(TM) Income ETF | Bitcoin Investment Risks [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Bitcoin Investment Risks. The Fund’s indirect investment in bitcoin exposes it to the unique risks of this emerging innovation. Bitcoin’s price is highly volatile, and its market is influenced by the changing bitcoin network, fluctuating acceptance levels, and unpredictable usage trends. Not being a legal tender and operating outside central authority systems like banks, bitcoin faces potential government restrictions. For instance, some countries may limit or ban bitcoin transactions, negatively impacting its market value.
The risks associated with bitcoin include the possibility of fraud, theft, market manipulation, and security breaches in trading platforms. A small group of large bitcoin holders, known as “whales,” can significantly influence bitcoin’s price and may have the ability to manipulate the price. The largely unregulated nature of bitcoin and its trading venues heightens risks of fraudulent activities and market manipulation, which could affect bitcoin’s price. For example, if a group of miners gains control over a majority of the bitcoin network, they could manipulate transactions to their advantage. Historical instances have seen bitcoin trading venues shut down due to fraud or security breaches, often leaving investors without recourse and facing significant losses.
Updates to bitcoin’s software, proposed by developers, can lead to the creation of new digital assets, or “forks,” if not broadly adopted. This can impact bitcoin’s demand and the Fund’s performance. The extreme volatility of bitcoin’s market price can result in shareholder losses. Furthermore, the operation of bitcoin trading platforms may be disrupted or cease altogether due to various issues, further affecting bitcoin’s price and the Fund’s investments.
The value of bitcoin has historically been subject to significant speculation, making trading and investing in bitcoin reliant on market sentiment rather than traditional fundamental analysis.
Bitcoin’s price can be influenced by events unrelated to its security or utility, including instability in other speculative areas of the crypto/blockchain space, potentially leading to substantial declines in its value.
Risks associated with crypto asset trading platforms include fragmentation, regulatory non-compliance, and the possibility of enforcement actions by regulatory authorities, which could impact the valuation of bitcoin-linked derivatives held by the Fund.
The security of the Bitcoin Blockchain may be compromised if a single miner or group controls more than 50% of the network’s hashing power, where hashing power refers to the computational capacity used to validate and secure transactions on the blockchain.
Proposed changes to the bitcoin protocol may not be universally adopted, leading to the creation of competing blockchains (forks) with different assets and participants, exemplified by past forks like Bitcoin Cash and Bitcoin SV.
The Bitcoin Blockchain protocol may contain vulnerabilities that attackers could exploit to disrupt its operation, potentially compromising the security and reliability of the network.
Emerging alternative public blockchains, particularly those emphasizing privacy through technologies like zero-knowledge cryptography, pose risks and challenges to the dominance of the Bitcoin Blockchain as a payment system.
Common impediments to adopting the Bitcoin Blockchain as a payment network include slow transaction processing, variability in transaction fees, and the volatility of bitcoin’s price, which may deter widespread adoption by businesses and consumers.
The development and use of “Layer II solutions” are critical for the scalability and functionality of the Bitcoin Blockchain, but they also introduce risks such as off-chain transaction execution, which could affect transparency and security. Layer II solutions are off-chain protocols that improve scalability and reduce transaction costs by processing transactions outside the main blockchain network.
Adoption and use of other blockchains supporting advanced applications like smart contracts present challenges to the dominance of the Bitcoin Blockchain, potentially impacting its long-term relevance and utility in the evolving landscape of blockchain technology.
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| Defiance Bitcoin LightningSpread(TM) Income ETF | Digital Asset Markets Risk [Member] | |||||||||||||||||||||||||
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| Defiance Bitcoin LightningSpread(TM) Income ETF | Blockchain Technology Risk [Member] | |||||||||||||||||||||||||
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| Defiance Bitcoin LightningSpread(TM) Income ETF | Risk Lose Money [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | The Fund may not achieve its investment objective and there is a risk that you could lose all of your money invested in the Fund. | ||||||||||||||||||||||||
| Defiance Bitcoin LightningSpread(TM) Income ETF | Risk Nondiversified Status [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Non-Diversification Risk. Because the Fund is “non-diversified,” it may invest a greater percentage of its assets in the securities of a single issuer or a smaller number of issuers than if it was a diversified fund. As a result, a decline in the value of an investment in a single issuer or a smaller number of issuers could cause the Fund’s overall value to decline to a greater degree than if the Fund held a more diversified portfolio.
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| Defiance Ethereum LightningSpread(TM) Income ETF | Derivatives Risks [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Derivatives Risks. Derivatives are financial instruments that derive value from the underlying reference asset or assets, such as stocks, bonds, or funds (including ETFs), interest rates or indexes. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other ordinary investments, including risk related to the market, imperfect correlation with underlying investments or the Fund’s other portfolio holdings, higher price volatility, lack of availability, counterparty risk, liquidity, valuation and legal restrictions. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with ordinary portfolio securities transactions. The use of derivatives may result in larger losses or smaller gains than directly investing in securities. When the Fund uses derivatives, there may be an imperfect correlation between the value of the underlying reference asset and the derivative, which may prevent the Fund from achieving its investment objective. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of those amounts initially invested. In addition, the Fund’s investments in derivatives are subject to the following risks:
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| Defiance Ethereum LightningSpread(TM) Income ETF | Options Contracts [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] |
Although the Fund may use options to provide synthetic exposure to the Underlying ETP, option prices may not perfectly replicate the rate of change of the Underlying ETP prior to expiration, resulting in potential tracking differences. Similarly, the premiums received from selling put spreads are influenced by market volatility and the specific strike prices selected, which can vary based on market conditions.
The Fund may experience downside risk from certain options positions, including the potential for purchased options to expire worthless, resulting in the loss of premiums paid. Writing (selling) options also exposes the Fund to risk of loss, which may exceed the premiums received. For example, selling put options exposes the Fund to the risk that the price of the Underlying ETP declines below the strike price, potentially resulting in substantial losses. Selling put spreads limits these losses to the difference between the strike prices of the sold and purchased puts, less the net premium received, but does not eliminate risk.
The Fund may encounter challenges in managing written options positions, particularly in volatile or illiquid markets, where closing or adjusting positions may be difficult or costly. Additionally, the process of rolling options positions, replacing expiring options with new contracts to maintain exposure, can involve significant transaction costs and expose the Fund to additional risks, such as adverse price movements during the roll period or reduced liquidity in the desired contracts. The Fund may also face margin requirements associated with written options, which could require the Fund to liquidate other assets to meet these obligations, potentially at unfavorable prices. Collectively, these risks may result in losses or reduced investment efficiency for the Fund.
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| Defiance Ethereum LightningSpread(TM) Income ETF | Swap Agreements [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
The swap agreements in which the Fund invests are generally traded in the over-the-counter market, which generally has less transparency than exchange-traded derivative instruments. In a standard swap transaction, two parties agree to exchange the return (or differentials in rates of return) earned or realized on particular predetermined reference assets, securities, or instruments. The gross return to be exchanged or “swapped” between the parties is calculated based on a notional amount or the return on or change in value of a particular dollar amount invested in the reference asset.
If the Underlying ETP experiences a significant price movement that causes a material change in the Fund’s net assets, the terms of a swap agreement between the Fund and its counterparty may permit the counterparty to close out the swap transaction with the Fund. In that event, the Fund may be unable to enter into another swap agreement or invest in other derivatives to maintain exposure consistent with its investment objective. This may temporarily reduce the Fund’s ability to maintain its intended level of synthetic exposure until replacement transactions can be established.
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| Defiance Ethereum LightningSpread(TM) Income ETF | Counterparty Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Counterparty Risk. The Fund is subject to counterparty risk by virtue of its investments in options contracts. Transactions in some types of derivatives, including options, are required to be centrally cleared (“cleared derivatives”). In a transaction involving cleared derivatives, the Fund’s counterparty is a clearing house rather than a bank or broker. Since the Fund is not a member of clearing houses and only members of a clearing house (“clearing members”) can participate directly in the clearing house, the Fund will hold cleared derivatives through accounts at clearing members. In cleared derivatives positions, the Fund will make payments (including margin payments) to and receive payments from a clearing house through their accounts at clearing members. Customer funds held at a clearing organization in connection with any options contracts are held in a commingled omnibus account and are not identified to the name of the clearing member’s individual customers. As a result, assets deposited by the Fund with any clearing member as margin for options may, in certain circumstances, be used to satisfy losses of other clients of the Fund’s clearing member. In addition, although clearing members guarantee performance of their clients’ obligations to the clearing house, there is a risk that the assets of the Fund might not be fully protected in the event of the clearing member’s bankruptcy, as the Fund would be limited to recovering only a pro rata share of all available funds segregated on behalf of the clearing member’s customers for the relevant account class. The Fund is also subject to the risk that a limited number of clearing members are willing to transact on the Fund’s behalf, which heightens the risks associated with a clearing member’s default. This risk is greater for the Fund as it seeks to hold options contracts on a single security, and not a broader range of options contracts, which may limit the number of clearing members that are willing to transact on the Fund’s behalf. If a clearing member defaults the Fund could lose some or all of the benefits of a transaction entered into by the Fund with the clearing member. If the Fund cannot find a clearing member to transact with on the Fund’s behalf, the Fund may be unable to effectively implement its investment strategy.
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| Defiance Ethereum LightningSpread(TM) Income ETF | Distribution Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Distribution Risk. As part of the Fund’s investment objective, the Fund seeks to provide current income twice weekly. There is no assurance that the Fund will make more than one, or any, distribution in a given week. If the Fund does make distributions, the amounts of such distributions will likely vary greatly from one distribution to the next.
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| Defiance Ethereum LightningSpread(TM) Income ETF | NAV Erosion Risk Due to Distributions [Member] | |||||||||||||||||||||||||
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| Defiance Ethereum LightningSpread(TM) Income ETF | Equity Market Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Equity Market Risk. Common stocks are generally exposed to greater risk than other types of securities, such as preferred stock and debt obligations, because common stockholders generally have inferior rights to receive payment from specific issuers. The equity securities held in the Fund’s portfolio may experience sudden, unpredictable drops in value or long periods of decline in value. This may occur because of factors that affect securities markets generally or factors affecting specific issuers, industries, or sectors in which the Fund invests. Common stocks, such as those held by the Fund, are generally exposed to greater risk than other types of securities, such as preferred stock and debt obligations, because common stockholders generally have inferior rights to receive payment from issuers.
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| Defiance Ethereum LightningSpread(TM) Income ETF | Concentration Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Concentration Risk. The Fund’s investment exposure will be concentrated in (or substantially exposed to) the same industry or groups of industries, if any, to which the Underlying ETP is concentrated. As a result, the Fund may be more susceptible to loss due to adverse occurrences that affect the price of such industries more than the market as a whole.
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| Defiance Ethereum LightningSpread(TM) Income ETF | ETF Risks [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | ETF Risks
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| Defiance Ethereum LightningSpread(TM) Income ETF | Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that are authorized to purchase and redeem Shares directly from the Fund (known as “Authorized Participants” or “APs”). In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services; or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
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| Defiance Ethereum LightningSpread(TM) Income ETF | Cash Redemption Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Cash Redemption Risk. The Fund’s investment strategy may require it to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. For example, the Fund may not be able to redeem in-kind certain securities held by the Fund (e.g., derivative instruments). In such a case, the Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used. By paying out higher annual capital gain distributions, investors may be subjected to increased capital gains taxes. Additionally, there may be brokerage costs or taxable gains or losses that may be imposed on the Fund in connection with a cash redemption that may not have occurred if the Fund had made a redemption in-kind. These costs could decrease the value of the Fund to the extent they are not offset by a transaction fee payable by an AP.
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| Defiance Ethereum LightningSpread(TM) Income ETF | Costs of Buying or Selling Shares [Member] | |||||||||||||||||||||||||
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| Defiance Ethereum LightningSpread(TM) Income ETF | Shares May Trade at Prices Other Than NAV [Member] | |||||||||||||||||||||||||
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| Defiance Ethereum LightningSpread(TM) Income ETF | Trading [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Trading. Although Shares are listed on a national securities exchange, such as Cboe BZX Exchange, Inc. (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that an active trading market for the Shares will develop or be maintained or that the Shares will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Shares. Shares trade on the Exchange at market price that may be below, at or above the Fund’s NAV. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable. In addition, trading in Shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange “circuit breaker” rules. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged. As a result, the Fund could be adversely affected and be unable to implement its investment strategies in the event of an unscheduled closing.
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| Defiance Ethereum LightningSpread(TM) Income ETF | Economic and Market Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Economic and Market Risk. Economies and financial markets throughout the world are becoming increasingly interconnected, which increases the likelihood that events or conditions in one country or region will adversely impact markets or issuers in other countries or regions. Securities in the Fund’s portfolio may underperform in comparison to securities in the general financial markets, a particular financial market, or other asset classes, due to a number of factors, including inflation (or expectations for inflation), deflation (or expectations for deflation), interest rates, global demand for particular products or resources, market instability, financial system instability, debt crises and downgrades, embargoes, tariffs, sanctions and other trade barriers, regulatory events, other governmental trade or market control programs and related geopolitical events. In addition, the value of the Fund’s investments may be negatively affected by the occurrence of global events such as war, terrorism, environmental disasters, natural disasters or events, country instability, and infectious disease epidemics or pandemics. The imposition by the U.S. of tariffs on goods imported from foreign countries and reciprocal tariffs levied on U.S. goods by those countries also may lead to volatility and instability in domestic and foreign markets.
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| Defiance Ethereum LightningSpread(TM) Income ETF | High Portfolio Turnover Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | High Portfolio Turnover Risk. The Fund may actively and frequently trade all or a significant portion of the Fund’s holdings. A high portfolio turnover rate increases transaction costs, which may increase the Fund’s expenses. Frequent trading may also cause adverse tax consequences for investors in the Fund due to an increase in short-term capital gains.
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| Defiance Ethereum LightningSpread(TM) Income ETF | Inflation Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Inflation Risk. Inflation risk is the risk that the value of assets or income from investments will be less in the future as inflation decreases the value of money. As inflation increases, the present value of the Fund’s assets and distributions, if any, may decline.
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| Defiance Ethereum LightningSpread(TM) Income ETF | Money Market Instrument Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Money Market Instrument Risk. The Fund may use a variety of money market instruments for cash management purposes, including money market funds, depositary accounts and repurchase agreements. Repurchase agreements are contracts in which a seller of securities agrees to buy the securities back at a specified time and price. Repurchase agreements may be subject to market and credit risk related to the collateral securing the repurchase agreement. Money market instruments, including money market funds, may lose money through fees or other means.
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| Defiance Ethereum LightningSpread(TM) Income ETF | New Fund Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | New Fund Risk. The Fund is a recently organized management investment company with no operating history. As a result, prospective investors do not have a track record or history on which to base their investment decisions.
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| Defiance Ethereum LightningSpread(TM) Income ETF | Operational Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Operational Risk. The Fund is subject to risks arising from various operational factors, including, but not limited to, human error, processing and communication errors, errors of the Fund’s service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund relies on third-parties for a range of services, including custody. Any delay or failure relating to engaging or maintaining such service providers may affect the Fund’s ability to meet its investment objective. Although the Fund and Adviser seek to reduce these operational risks through controls and procedures, there is no way to completely protect against such risks.
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| Defiance Ethereum LightningSpread(TM) Income ETF | Tax Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Tax Risk. The Fund intends to elect and to qualify each year to be treated as a regulated investment company (a “RIC”) under Subchapter M of the Internal Revenue Code of 1986, as amended (“Code”). As a RIC, the Fund will not be subject to U.S. federal income tax on the portion of its net investment income and net capital gain that it distributes to shareholders, provided that it satisfies certain requirements of the Code. If the Fund does not qualify as a RIC for any taxable year and certain relief provisions are not available, the Fund’s taxable income will be subject to tax at the Fund level and to a further tax at the shareholder level when such income is distributed. To comply with the asset diversification test applicable to a RIC, the Fund will attempt to ensure that the value of swap contracts and options on shares of a single issuer does not exceed 25% of the Fund’s value at the close of any quarter. If the value of swap contracts and options on shares of a single issuer were to exceed 25% of the Fund’s total assets at the end of a tax quarter, the Fund, generally, has a grace period to cure such lack of compliance. If the Fund fails to timely cure, it may no longer be eligible to be treated as a RIC.
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| Defiance Ethereum LightningSpread(TM) Income ETF | U.S. Government and U.S. Agency Obligations Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | U.S. Government and U.S. Agency Obligations Risk. The Fund may invest in securities issued by the U.S. government or its agencies or instrumentalities. U.S. Government obligations include securities issued or guaranteed as to principal and interest by the U.S. Government, its agencies or instrumentalities, such as the U.S. Treasury. Payment of principal and interest on U.S. Government obligations may be backed by the full faith and credit of the United States or may be backed solely by the issuing or guaranteeing agency or instrumentality itself. In the latter case, the investor must look principally to the agency or instrumentality issuing or guaranteeing the obligation for ultimate repayment, which agency or instrumentality may be privately owned. There can be no assurance that the U.S. Government would provide financial support to its agencies or instrumentalities (including government-sponsored enterprises) where it is not obligated to do so.
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| Defiance Ethereum LightningSpread(TM) Income ETF | No 1940 Act Protections [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
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| Defiance Ethereum LightningSpread(TM) Income ETF | ETHE Risks [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | ETHE Risks. The Fund invests in instruments based on the value of ETHE. This subjects the Fund to certain of the same risks as if it owned shares of ETHE as well as the risks associated with the assets held by ETHE, even though the Fund does not hold those assets directly. The value of ETHE will fluctuate with the market price of Ether, which may be affected by economic conditions, regulatory developments, supply and demand for bitcoin, technological developments, investor sentiment and other factors. Brokerage, custody, management fees and other expenses may negatively impact the performance of ETHE and therefore the value of the Fund’s shares.
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| Defiance Ethereum LightningSpread(TM) Income ETF | ETHE and Digital Asset Exposure Risks [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
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| Defiance Ethereum LightningSpread(TM) Income ETF | Ethereum Network and Technology Risks [Member] | |||||||||||||||||||||||||
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| Defiance Ethereum LightningSpread(TM) Income ETF | Regulatory and Legal Risks [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
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| Defiance Ethereum LightningSpread(TM) Income ETF | Market, Volatility, and Liquidity Risks [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
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| Defiance Ethereum LightningSpread(TM) Income ETF | Operational, Custody, and Counterparty Risks [Member] | |||||||||||||||||||||||||
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| Defiance Ethereum LightningSpread(TM) Income ETF | Digital Asset Market Structure Risks [Member] | |||||||||||||||||||||||||
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| Defiance Ethereum LightningSpread(TM) Income ETF | Environmental, Technological, and Smart-Contract Risks [Member] | |||||||||||||||||||||||||
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| Defiance Ethereum LightningSpread(TM) Income ETF | Concentration and Non-Diversification Risks [Member] | |||||||||||||||||||||||||
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| Defiance Ethereum LightningSpread(TM) Income ETF | Ether Risks [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Ether Risks. The Fund’s exposure to ETHE indirectly exposes the Fund to the risks associated with an investment in ether. Ether is a relatively new innovation and is subject to unique and substantial risks. The market for ether is subject to rapid price swings, changes and uncertainty. The further development of the Ethereum Network and the acceptance and use of ether are subject to a variety of factors that are difficult to evaluate. The slowing, stopping or reversing of the development of the Ethereum Network or the acceptance of ether may adversely affect the price and liquidity of ether. Ether is subject to the risk of fraud, theft, manipulation or security failures, operational or other problems that impact ether trading venues. Additionally, if one or a coordinated group of validators were to gain control of 33% or more of staked ether (i.e., ether that is deposited to support the Ethereum Network), they would have the ability to execute extensive attacks, manipulate transactions and fraudulently obtain ether. If such a validator or group of validators were to gain control of one-third of staked ether, they could halt payments. A significant portion of ether is held by a small number of holders sometimes referred to as “whales”. Transactions by these holders may influence the price of ether.
Unlike the exchanges for more traditional assets, such as equity securities and futures contracts, ether and ether trading venues are largely unregulated. As a result of the lack of regulation, individuals or groups may engage in fraud or market manipulation (including using social media to promote ether in a way that artificially increases the price of ether). Investors may be more exposed to the risk of theft, fraud and market manipulation than when investing in more traditional asset classes. Over the past several years, a number of ether trading venues have been closed due to fraud, failure or security breaches. Investors in ether may have little or no recourse should such theft, fraud or manipulation occur and could suffer significant losses.
The realization of any of these risks could result in a decline in the acceptance of ether and consequently a reduction in the value of ether, ether futures, and the Fund.
Additionally, legal or regulatory changes may negatively impact the operation of the Ethereum Network or restrict the use of ether. For example, if ether were determined to be or were expected to be determined to be a security under the federal securities laws, it is possible certain trading venues would no longer facilitate trading in ether, trading in ether futures may become significantly more volatile and/or completely halted, and the value of an investment in the Fund could decline significantly and without warning, including to zero.
Finally, the creation of a “fork” (as described above) or a substantial giveaway of ether (sometimes referred to as an “air drop”) may result in significant and unexpected declines in the value of ether, ether futures, and the Fund. A fork may be intentional, such as the ‘Merge.’ The ‘Merge’ refers to protocol changes altering the method by which transactions are validated.
The market for ether futures may be less developed, and potentially less liquid and more volatile, than more established futures markets. While the ether futures market has grown substantially since ether futures commenced trading, there can be no assurance that this growth will continue. The price for ether futures contracts is based on a number of factors, including the supply of and the demand for ether futures contracts. Market conditions and expectations, regulatory limitations or limitations imposed by the listing exchanges or futures commission merchants (“FCMs”) (e.g., margin requirements, position limits, and accountability levels), collateral requirements, availability of counterparties, and other factors each can impact the supply of and demand for ether futures contracts.
Market conditions and expectations, margin requirements, position limits, accountability levels, collateral requirements, availability of counterparties, and other factors may also limit the Fund’s ability to achieve its desired exposure to ether futures contracts. If the Fund is unable to achieve such exposure it may not be able to meet its investment objective and the Fund’s returns may be different or lower than expected. Additionally, collateral requirements may require the Fund to liquidate its positions, potentially incurring losses and expenses, when it otherwise would not do so. Investing in derivatives like ether futures may be considered aggressive and may expose the Fund to significant risks. These risks include counterparty risk and liquidity risk.
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| Defiance Ethereum LightningSpread(TM) Income ETF | Risk Lose Money [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | The Fund may not achieve its investment objective and there is a risk that you could lose all of your money invested in the Fund. | ||||||||||||||||||||||||
| Defiance Ethereum LightningSpread(TM) Income ETF | Risk Nondiversified Status [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Non-Diversification Risk. Because the Fund is “non-diversified,” it may invest a greater percentage of its assets in the securities of a single issuer or a smaller number of issuers than if it was a diversified fund. As a result, a decline in the value of an investment in a single issuer or a smaller number of issuers could cause the Fund’s overall value to decline to a greater degree than if the Fund held a more diversified portfolio.
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| Defiance Gold LightningSpread(TM) Income ETF | Derivatives Risks [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Derivatives Risks. Derivatives are financial instruments that derive value from the underlying reference asset or assets, such as stocks, bonds, or funds (including ETFs), interest rates or indexes. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other ordinary investments, including risk related to the market, imperfect correlation with underlying investments or the Fund’s other portfolio holdings, higher price volatility, lack of availability, counterparty risk, liquidity, valuation and legal restrictions. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with ordinary portfolio securities transactions. The use of derivatives may result in larger losses or smaller gains than directly investing in securities. When the Fund uses derivatives, there may be an imperfect correlation between the value of the underlying reference asset and the derivative, which may prevent the Fund from achieving its investment objective. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of those amounts initially invested. In addition, the Fund’s investments in derivatives are subject to the following risks:
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| Defiance Gold LightningSpread(TM) Income ETF | Options Contracts [Member] | |||||||||||||||||||||||||
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Although the Fund may use options to provide synthetic exposure to the Underlying ETP, option prices may not perfectly replicate the rate of change of the Underlying ETP prior to expiration, resulting in potential tracking differences. Similarly, the premiums received from selling put spreads are influenced by market volatility and the specific strike prices selected, which can vary based on market conditions.
The Fund may experience downside risk from certain options positions, including the potential for purchased options to expire worthless, resulting in the loss of premiums paid. Writing (selling) options also exposes the Fund to risk of loss, which may exceed the premiums received. For example, selling put options exposes the Fund to the risk that the price of the Underlying ETP declines below the strike price, potentially resulting in substantial losses. Selling put spreads limits these losses to the difference between the strike prices of the sold and purchased puts, less the net premium received, but does not eliminate risk.
The Fund may encounter challenges in managing written options positions, particularly in volatile or illiquid markets, where closing or adjusting positions may be difficult or costly. Additionally, the process of rolling options positions, replacing expiring options with new contracts to maintain exposure, can involve significant transaction costs and expose the Fund to additional risks, such as adverse price movements during the roll period or reduced liquidity in the desired contracts. The Fund may also face margin requirements associated with written options, which could require the Fund to liquidate other assets to meet these obligations, potentially at unfavorable prices. Collectively, these risks may result in losses or reduced investment efficiency for the Fund.
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| Defiance Gold LightningSpread(TM) Income ETF | Swap Agreements [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] |
The swap agreements in which the Fund invests are generally traded in the over-the-counter market, which generally has less transparency than exchange-traded derivative instruments. In a standard swap transaction, two parties agree to exchange the return (or differentials in rates of return) earned or realized on particular predetermined reference assets, securities, or instruments. The gross return to be exchanged or “swapped” between the parties is calculated based on a notional amount or the return on or change in value of a particular dollar amount invested in the reference asset.
If the Underlying ETP experiences a significant price movement that causes a material change in the Fund’s net assets, the terms of a swap agreement between the Fund and its counterparty may permit the counterparty to close out the swap transaction with the Fund. In that event, the Fund may be unable to enter into another swap agreement or invest in other derivatives to maintain exposure consistent with its investment objective. This may temporarily reduce the Fund’s ability to maintain its intended level of synthetic exposure until replacement transactions can be established.
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| Defiance Gold LightningSpread(TM) Income ETF | Counterparty Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Counterparty Risk. The Fund is subject to counterparty risk by virtue of its investments in options contracts. Transactions in some types of derivatives, including options, are required to be centrally cleared (“cleared derivatives”). In a transaction involving cleared derivatives, the Fund’s counterparty is a clearing house rather than a bank or broker. Since the Fund is not a member of clearing houses and only members of a clearing house (“clearing members”) can participate directly in the clearing house, the Fund will hold cleared derivatives through accounts at clearing members. In cleared derivatives positions, the Fund will make payments (including margin payments) to and receive payments from a clearing house through their accounts at clearing members. Customer funds held at a clearing organization in connection with any options contracts are held in a commingled omnibus account and are not identified to the name of the clearing member’s individual customers. As a result, assets deposited by the Fund with any clearing member as margin for options may, in certain circumstances, be used to satisfy losses of other clients of the Fund’s clearing member. In addition, although clearing members guarantee performance of their clients’ obligations to the clearing house, there is a risk that the assets of the Fund might not be fully protected in the event of the clearing member’s bankruptcy, as the Fund would be limited to recovering only a pro rata share of all available funds segregated on behalf of the clearing member’s customers for the relevant account class. The Fund is also subject to the risk that a limited number of clearing members are willing to transact on the Fund’s behalf, which heightens the risks associated with a clearing member’s default. This risk is greater for the Fund as it seeks to hold options contracts on a single security, and not a broader range of options contracts, which may limit the number of clearing members that are willing to transact on the Fund’s behalf. If a clearing member defaults the Fund could lose some or all of the benefits of a transaction entered into by the Fund with the clearing member. If the Fund cannot find a clearing member to transact with on the Fund’s behalf, the Fund may be unable to effectively implement its investment strategy.
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| Defiance Gold LightningSpread(TM) Income ETF | Distribution Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Distribution Risk. As part of the Fund’s investment objective, the Fund seeks to provide current income twice weekly. There is no assurance that the Fund will make more than one, or any, distribution in a given week. If the Fund does make distributions, the amounts of such distributions will likely vary greatly from one distribution to the next.
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| Defiance Gold LightningSpread(TM) Income ETF | NAV Erosion Risk Due to Distributions [Member] | |||||||||||||||||||||||||
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| Defiance Gold LightningSpread(TM) Income ETF | Equity Market Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Equity Market Risk. Common stocks are generally exposed to greater risk than other types of securities, such as preferred stock and debt obligations, because common stockholders generally have inferior rights to receive payment from specific issuers. The equity securities held in the Fund’s portfolio may experience sudden, unpredictable drops in value or long periods of decline in value. This may occur because of factors that affect securities markets generally or factors affecting specific issuers, industries, or sectors in which the Fund invests. Common stocks, such as those held by the Fund, are generally exposed to greater risk than other types of securities, such as preferred stock and debt obligations, because common stockholders generally have inferior rights to receive payment from issuers.
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| Defiance Gold LightningSpread(TM) Income ETF | Concentration Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Concentration Risk. The Fund’s investment exposure will be concentrated in (or substantially exposed to) the same industry or groups of industries, if any, to which the Underlying ETP is concentrated. As a result, the Fund may be more susceptible to loss due to adverse occurrences that affect the price of such industries more than the market as a whole.
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| Defiance Gold LightningSpread(TM) Income ETF | ETF Risks [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | ETF Risks
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| Defiance Gold LightningSpread(TM) Income ETF | Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that are authorized to purchase and redeem Shares directly from the Fund (known as “Authorized Participants” or “APs”). In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services; or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
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| Defiance Gold LightningSpread(TM) Income ETF | Cash Redemption Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Cash Redemption Risk. The Fund’s investment strategy may require it to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. For example, the Fund may not be able to redeem in-kind certain securities held by the Fund (e.g., derivative instruments). In such a case, the Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used. By paying out higher annual capital gain distributions, investors may be subjected to increased capital gains taxes. Additionally, there may be brokerage costs or taxable gains or losses that may be imposed on the Fund in connection with a cash redemption that may not have occurred if the Fund had made a redemption in-kind. These costs could decrease the value of the Fund to the extent they are not offset by a transaction fee payable by an AP.
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| Defiance Gold LightningSpread(TM) Income ETF | Costs of Buying or Selling Shares [Member] | |||||||||||||||||||||||||
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| Defiance Gold LightningSpread(TM) Income ETF | Shares May Trade at Prices Other Than NAV [Member] | |||||||||||||||||||||||||
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| Defiance Gold LightningSpread(TM) Income ETF | Trading [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Trading. Although Shares are listed on a national securities exchange, such as Cboe BZX Exchange, Inc. (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that an active trading market for the Shares will develop or be maintained or that the Shares will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Shares. Shares trade on the Exchange at market price that may be below, at or above the Fund’s NAV. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable. In addition, trading in Shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange “circuit breaker” rules. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged. As a result, the Fund could be adversely affected and be unable to implement its investment strategies in the event of an unscheduled closing.
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| Defiance Gold LightningSpread(TM) Income ETF | Economic and Market Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Economic and Market Risk. Economies and financial markets throughout the world are becoming increasingly interconnected, which increases the likelihood that events or conditions in one country or region will adversely impact markets or issuers in other countries or regions. Securities in the Fund’s portfolio may underperform in comparison to securities in the general financial markets, a particular financial market, or other asset classes, due to a number of factors, including inflation (or expectations for inflation), deflation (or expectations for deflation), interest rates, global demand for particular products or resources, market instability, financial system instability, debt crises and downgrades, embargoes, tariffs, sanctions and other trade barriers, regulatory events, other governmental trade or market control programs and related geopolitical events. In addition, the value of the Fund’s investments may be negatively affected by the occurrence of global events such as war, terrorism, environmental disasters, natural disasters or events, country instability, and infectious disease epidemics or pandemics. The imposition by the U.S. of tariffs on goods imported from foreign countries and reciprocal tariffs levied on U.S. goods by those countries also may lead to volatility and instability in domestic and foreign markets.
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| Defiance Gold LightningSpread(TM) Income ETF | High Portfolio Turnover Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | High Portfolio Turnover Risk. The Fund may actively and frequently trade all or a significant portion of the Fund’s holdings. A high portfolio turnover rate increases transaction costs, which may increase the Fund’s expenses. Frequent trading may also cause adverse tax consequences for investors in the Fund due to an increase in short-term capital gains.
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| Defiance Gold LightningSpread(TM) Income ETF | Inflation Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Inflation Risk. Inflation risk is the risk that the value of assets or income from investments will be less in the future as inflation decreases the value of money. As inflation increases, the present value of the Fund’s assets and distributions, if any, may decline.
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| Defiance Gold LightningSpread(TM) Income ETF | Money Market Instrument Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Money Market Instrument Risk. The Fund may use a variety of money market instruments for cash management purposes, including money market funds, depositary accounts and repurchase agreements. Repurchase agreements are contracts in which a seller of securities agrees to buy the securities back at a specified time and price. Repurchase agreements may be subject to market and credit risk related to the collateral securing the repurchase agreement. Money market instruments, including money market funds, may lose money through fees or other means.
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| Defiance Gold LightningSpread(TM) Income ETF | New Fund Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | New Fund Risk. The Fund is a recently organized management investment company with no operating history. As a result, prospective investors do not have a track record or history on which to base their investment decisions.
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| Defiance Gold LightningSpread(TM) Income ETF | Operational Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Operational Risk. The Fund is subject to risks arising from various operational factors, including, but not limited to, human error, processing and communication errors, errors of the Fund’s service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund relies on third-parties for a range of services, including custody. Any delay or failure relating to engaging or maintaining such service providers may affect the Fund’s ability to meet its investment objective. Although the Fund and Adviser seek to reduce these operational risks through controls and procedures, there is no way to completely protect against such risks.
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| Defiance Gold LightningSpread(TM) Income ETF | Tax Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Tax Risk. The Fund intends to elect and to qualify each year to be treated as a regulated investment company (a “RIC”) under Subchapter M of the Internal Revenue Code of 1986, as amended (“Code”). As a RIC, the Fund will not be subject to U.S. federal income tax on the portion of its net investment income and net capital gain that it distributes to shareholders, provided that it satisfies certain requirements of the Code. If the Fund does not qualify as a RIC for any taxable year and certain relief provisions are not available, the Fund’s taxable income will be subject to tax at the Fund level and to a further tax at the shareholder level when such income is distributed. To comply with the asset diversification test applicable to a RIC, the Fund will attempt to ensure that the value of swap contracts and options on shares of a single issuer does not exceed 25% of the Fund’s value at the close of any quarter. If the value of swap contracts and options on shares of a single issuer were to exceed 25% of the Fund’s total assets at the end of a tax quarter, the Fund, generally, has a grace period to cure such lack of compliance. If the Fund fails to timely cure, it may no longer be eligible to be treated as a RIC.
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| Defiance Gold LightningSpread(TM) Income ETF | U.S. Government and U.S. Agency Obligations Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | U.S. Government and U.S. Agency Obligations Risk. The Fund may invest in securities issued by the U.S. government or its agencies or instrumentalities. U.S. Government obligations include securities issued or guaranteed as to principal and interest by the U.S. Government, its agencies or instrumentalities, such as the U.S. Treasury. Payment of principal and interest on U.S. Government obligations may be backed by the full faith and credit of the United States or may be backed solely by the issuing or guaranteeing agency or instrumentality itself. In the latter case, the investor must look principally to the agency or instrumentality issuing or guaranteeing the obligation for ultimate repayment, which agency or instrumentality may be privately owned. There can be no assurance that the U.S. Government would provide financial support to its agencies or instrumentalities (including government-sponsored enterprises) where it is not obligated to do so.
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| Defiance Gold LightningSpread(TM) Income ETF | No 1940 Act Protections [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
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| Defiance Gold LightningSpread(TM) Income ETF | GLD Risks [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | GLD Risks. The Fund invests in derivative instruments that are based on the value of GLD. This subjects the Fund to certain of the same risks as if it owned shares of GLD, even though it does not. By virtue of the Fund’s investments in derivative instruments that are based on the value of GLD, the Fund may also be subject to the following risks:
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| Defiance Gold LightningSpread(TM) Income ETF | GLD Trading Risk [Member] | |||||||||||||||||||||||||
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GLD faces significant custodial and safeguarding risks regarding its gold holdings. There is an inherent danger of these gold bars being lost, damaged, stolen, or becoming inaccessible due to factors such as natural disasters or terrorism. GLD does not insure its gold, and the insurance held by its custodian might not fully cover potential losses. The custodian’s liability is restricted to direct losses from negligence, fraud, or willful default, limited to the gold’s market value at the time of the incident, a constraint that also applies to any subcustodians. Additionally, legal and practical difficulties in foreign jurisdictions could complicate the enforcement of rights or claims. The custodian, not specifically regulated for gold bullion custody, relies on industry best practices and internal controls, which presents a security risk for GLD’s gold. Furthermore, gold in GLD’s unallocated accounts isn’t segregated from the custodian’s assets, thus in the event of the custodian’s insolvency, GLD would be an unsecured creditor, potentially leading to delays and extra costs in recovering allocated gold. These challenges in dealing with subcustodians and the potential complications in legal actions due to the lack of direct contractual arrangements and the intricacies of foreign legal systems highlight the significant custodial risks in investing in GLD Shares.
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| Defiance Gold LightningSpread(TM) Income ETF | Indirect Investments in GLD [Member] | |||||||||||||||||||||||||
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| Defiance Gold LightningSpread(TM) Income ETF | Gold Performance Risk [Member] | |||||||||||||||||||||||||
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| Defiance Gold LightningSpread(TM) Income ETF | Risk Lose Money [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | The Fund may not achieve its investment objective and there is a risk that you could lose all of your money invested in the Fund. | ||||||||||||||||||||||||
| Defiance Gold LightningSpread(TM) Income ETF | Risk Nondiversified Status [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Non-Diversification Risk. Because the Fund is “non-diversified,” it may invest a greater percentage of its assets in the securities of a single issuer or a smaller number of issuers than if it was a diversified fund. As a result, a decline in the value of an investment in a single issuer or a smaller number of issuers could cause the Fund’s overall value to decline to a greater degree than if the Fund held a more diversified portfolio.
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| Defiance Gold Miners LightningSpread(TM) Income ETF | Derivatives Risks [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Derivatives Risks. Derivatives are financial instruments that derive value from the underlying reference asset or assets, such as stocks, bonds, or funds (including ETFs), interest rates or indexes. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other ordinary investments, including risk related to the market, imperfect correlation with underlying investments or the Fund’s other portfolio holdings, higher price volatility, lack of availability, counterparty risk, liquidity, valuation and legal restrictions. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with ordinary portfolio securities transactions. The use of derivatives may result in larger losses or smaller gains than directly investing in securities. When the Fund uses derivatives, there may be an imperfect correlation between the value of the underlying reference asset and the derivative, which may prevent the Fund from achieving its investment objective. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of those amounts initially invested. In addition, the Fund’s investments in derivatives are subject to the following risks:
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| Defiance Gold Miners LightningSpread(TM) Income ETF | Options Contracts [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] |
Although the Fund may use options to provide synthetic exposure to the Underlying ETF, option prices may not perfectly replicate the rate of change of the Underlying ETF prior to expiration, resulting in potential tracking differences. Similarly, the premiums received from selling put spreads are influenced by market volatility and the specific strike prices selected, which can vary based on market conditions.
The Fund may experience downside risk from certain options positions, including the potential for purchased options to expire worthless, resulting in the loss of premiums paid. Writing (selling) options also exposes the Fund to risk of loss, which may exceed the premiums received. For example, selling put options exposes the Fund to the risk that the price of the Underlying ETF declines below the strike price, potentially resulting in substantial losses. Selling put spreads limits these losses to the difference between the strike prices of the sold and purchased puts, less the net premium received, but does not eliminate risk.
The Fund may encounter challenges in managing written options positions, particularly in volatile or illiquid markets, where closing or adjusting positions may be difficult or costly. Additionally, the process of rolling options positions, replacing expiring options with new contracts to maintain exposure, can involve significant transaction costs and expose the Fund to additional risks, such as adverse price movements during the roll period or reduced liquidity in the desired contracts. The Fund may also face margin requirements associated with written options, which could require the Fund to liquidate other assets to meet these obligations, potentially at unfavorable prices. Collectively, these risks may result in losses or reduced investment efficiency for the Fund.
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| Defiance Gold Miners LightningSpread(TM) Income ETF | Swap Agreements [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] |
The swap agreements in which the Fund invests are generally traded in the over-the-counter market, which generally has less transparency than exchange-traded derivative instruments. In a standard swap transaction, two parties agree to exchange the return (or differentials in rates of return) earned or realized on particular predetermined reference assets, securities, or instruments. The gross return to be exchanged or “swapped” between the parties is calculated based on a notional amount or the return on or change in value of a particular dollar amount invested in the reference asset.
If the Underlying ETF experiences a significant price movement that causes a material change in the Fund’s net assets, the terms of a swap agreement between the Fund and its counterparty may permit the counterparty to close out the swap transaction with the Fund. In that event, the Fund may be unable to enter into another swap agreement or invest in other derivatives to maintain exposure consistent with its investment objective. This may temporarily reduce the Fund’s ability to maintain its intended level of synthetic exposure until replacement transactions can be established.
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| Defiance Gold Miners LightningSpread(TM) Income ETF | Counterparty Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Counterparty Risk. The Fund is subject to counterparty risk by virtue of its investments in options contracts. Transactions in some types of derivatives, including options, are required to be centrally cleared (“cleared derivatives”). In a transaction involving cleared derivatives, the Fund’s counterparty is a clearing house rather than a bank or broker. Since the Fund is not a member of clearing houses and only members of a clearing house (“clearing members”) can participate directly in the clearing house, the Fund will hold cleared derivatives through accounts at clearing members. In cleared derivatives positions, the Fund will make payments (including margin payments) to and receive payments from a clearing house through their accounts at clearing members. Customer funds held at a clearing organization in connection with any options contracts are held in a commingled omnibus account and are not identified to the name of the clearing member’s individual customers. As a result, assets deposited by the Fund with any clearing member as margin for options may, in certain circumstances, be used to satisfy losses of other clients of the Fund’s clearing member. In addition, although clearing members guarantee performance of their clients’ obligations to the clearing house, there is a risk that the assets of the Fund might not be fully protected in the event of the clearing member’s bankruptcy, as the Fund would be limited to recovering only a pro rata share of all available funds segregated on behalf of the clearing member’s customers for the relevant account class. The Fund is also subject to the risk that a limited number of clearing members are willing to transact on the Fund’s behalf, which heightens the risks associated with a clearing member’s default. This risk is greater for the Fund as it seeks to hold options contracts on a single security, and not a broader range of options contracts, which may limit the number of clearing members that are willing to transact on the Fund’s behalf. If a clearing member defaults the Fund could lose some or all of the benefits of a transaction entered into by the Fund with the clearing member. If the Fund cannot find a clearing member to transact with on the Fund’s behalf, the Fund may be unable to effectively implement its investment strategy.
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| Defiance Gold Miners LightningSpread(TM) Income ETF | Distribution Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Distribution Risk. As part of the Fund’s investment objective, the Fund seeks to provide current income twice weekly. There is no assurance that the Fund will make more than one, or any, distribution in a given week. If the Fund does make distributions, the amounts of such distributions will likely vary greatly from one distribution to the next.
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| Defiance Gold Miners LightningSpread(TM) Income ETF | NAV Erosion Risk Due to Distributions [Member] | |||||||||||||||||||||||||
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| Defiance Gold Miners LightningSpread(TM) Income ETF | Equity Market Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Equity Market Risk. Common stocks are generally exposed to greater risk than other types of securities, such as preferred stock and debt obligations, because common stockholders generally have inferior rights to receive payment from specific issuers. The equity securities held in the Fund’s portfolio may experience sudden, unpredictable drops in value or long periods of decline in value. This may occur because of factors that affect securities markets generally or factors affecting specific issuers, industries, or sectors in which the Fund invests. Common stocks, such as those held by the Fund, are generally exposed to greater risk than other types of securities, such as preferred stock and debt obligations, because common stockholders generally have inferior rights to receive payment from issuers.
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| Defiance Gold Miners LightningSpread(TM) Income ETF | Concentration Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Concentration Risk. The Fund’s investment exposure will be concentrated in (or substantially exposed to) the same industry or groups of industries, if any, to which the Underlying ETF is concentrated. As a result, the Fund may be more susceptible to loss due to adverse occurrences that affect the price of such industries more than the market as a whole.
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| Defiance Gold Miners LightningSpread(TM) Income ETF | ETF Risks [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | ETF Risks
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| Defiance Gold Miners LightningSpread(TM) Income ETF | Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that are authorized to purchase and redeem Shares directly from the Fund (known as “Authorized Participants” or “APs”). In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services; or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
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| Defiance Gold Miners LightningSpread(TM) Income ETF | Cash Redemption Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Cash Redemption Risk. The Fund’s investment strategy may require it to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. For example, the Fund may not be able to redeem in-kind certain securities held by the Fund (e.g., derivative instruments). In such a case, the Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used. By paying out higher annual capital gain distributions, investors may be subjected to increased capital gains taxes. Additionally, there may be brokerage costs or taxable gains or losses that may be imposed on the Fund in connection with a cash redemption that may not have occurred if the Fund had made a redemption in-kind. These costs could decrease the value of the Fund to the extent they are not offset by a transaction fee payable by an AP.
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| Defiance Gold Miners LightningSpread(TM) Income ETF | Costs of Buying or Selling Shares [Member] | |||||||||||||||||||||||||
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| Defiance Gold Miners LightningSpread(TM) Income ETF | Shares May Trade at Prices Other Than NAV [Member] | |||||||||||||||||||||||||
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| Defiance Gold Miners LightningSpread(TM) Income ETF | Trading [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Trading. Although Shares are listed on a national securities exchange, such as Cboe BZX Exchange, Inc. (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that an active trading market for the Shares will develop or be maintained or that the Shares will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Shares. Shares trade on the Exchange at market price that may be below, at or above the Fund’s NAV. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable. In addition, trading in Shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange “circuit breaker” rules. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged. As a result, the Fund could be adversely affected and be unable to implement its investment strategies in the event of an unscheduled closing.
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| Defiance Gold Miners LightningSpread(TM) Income ETF | Economic and Market Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Economic and Market Risk. Economies and financial markets throughout the world are becoming increasingly interconnected, which increases the likelihood that events or conditions in one country or region will adversely impact markets or issuers in other countries or regions. Securities in the Fund’s portfolio may underperform in comparison to securities in the general financial markets, a particular financial market, or other asset classes, due to a number of factors, including inflation (or expectations for inflation), deflation (or expectations for deflation), interest rates, global demand for particular products or resources, market instability, financial system instability, debt crises and downgrades, embargoes, tariffs, sanctions and other trade barriers, regulatory events, other governmental trade or market control programs and related geopolitical events. In addition, the value of the Fund’s investments may be negatively affected by the occurrence of global events such as war, terrorism, environmental disasters, natural disasters or events, country instability, and infectious disease epidemics or pandemics. The imposition by the U.S. of tariffs on goods imported from foreign countries and reciprocal tariffs levied on U.S. goods by those countries also may lead to volatility and instability in domestic and foreign markets.
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| Defiance Gold Miners LightningSpread(TM) Income ETF | High Portfolio Turnover Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | High Portfolio Turnover Risk. The Fund may actively and frequently trade all or a significant portion of the Fund’s holdings. A high portfolio turnover rate increases transaction costs, which may increase the Fund’s expenses. Frequent trading may also cause adverse tax consequences for investors in the Fund due to an increase in short-term capital gains.
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| Defiance Gold Miners LightningSpread(TM) Income ETF | Inflation Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Inflation Risk. Inflation risk is the risk that the value of assets or income from investments will be less in the future as inflation decreases the value of money. As inflation increases, the present value of the Fund’s assets and distributions, if any, may decline.
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| Defiance Gold Miners LightningSpread(TM) Income ETF | Money Market Instrument Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Money Market Instrument Risk. The Fund may use a variety of money market instruments for cash management purposes, including money market funds, depositary accounts and repurchase agreements. Repurchase agreements are contracts in which a seller of securities agrees to buy the securities back at a specified time and price. Repurchase agreements may be subject to market and credit risk related to the collateral securing the repurchase agreement. Money market instruments, including money market funds, may lose money through fees or other means.
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| Defiance Gold Miners LightningSpread(TM) Income ETF | New Fund Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | New Fund Risk. The Fund is a recently organized management investment company with no operating history. As a result, prospective investors do not have a track record or history on which to base their investment decisions.
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| Defiance Gold Miners LightningSpread(TM) Income ETF | Operational Risk [Member] | |||||||||||||||||||||||||
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| Defiance Gold Miners LightningSpread(TM) Income ETF | Tax Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Tax Risk. The Fund intends to elect and to qualify each year to be treated as a regulated investment company (a “RIC”) under Subchapter M of the Internal Revenue Code of 1986, as amended (“Code”). As a RIC, the Fund will not be subject to U.S. federal income tax on the portion of its net investment income and net capital gain that it distributes to Shareholders, provided that it satisfies certain requirements of the Code. If the Fund does not qualify as a RIC for any taxable year and certain relief provisions are not available, the Fund’s taxable income will be subject to tax at the Fund level and to a further tax at the shareholder level when such income is distributed.
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| Defiance Gold Miners LightningSpread(TM) Income ETF | U.S. Government and U.S. Agency Obligations Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | U.S. Government and U.S. Agency Obligations Risk. The Fund may invest in securities issued by the U.S. government or its agencies or instrumentalities. U.S. Government obligations include securities issued or guaranteed as to principal and interest by the U.S. Government, its agencies or instrumentalities, such as the U.S. Treasury. Payment of principal and interest on U.S. Government obligations may be backed by the full faith and credit of the United States or may be backed solely by the issuing or guaranteeing agency or instrumentality itself. In the latter case, the investor must look principally to the agency or instrumentality issuing or guaranteeing the obligation for ultimate repayment, which agency or instrumentality may be privately owned. There can be no assurance that the U.S. Government would provide financial support to its agencies or instrumentalities (including government-sponsored enterprises) where it is not obligated to do so.
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| Defiance Gold Miners LightningSpread(TM) Income ETF | GDX Risks [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | GDX Risks. The Fund invests in derivative instruments that are based on the value of an ETF, specifically GDX. This subjects the Fund to certain of the same risks as if it owned shares of GDX, as well as the types of instruments in which GDX invests, even though it does not. The value of GDX will fluctuate over time based on fluctuations in the values of the securities held by GDX, which may be affected by changes in general economic conditions, expectations for future growth and profits, interest rates and the supply and demand for those securities. Brokerage, tax and other expenses may negatively impact the performance of GDX and, in turn, the value of the Fund’s shares. Since GDX is an ETF, it is also subject to the same structural risks as the Fund, which is an ETF. By virtue of the Fund’s investments in derivative instruments that are based on the value of GDX, the Fund may also be subject to the following risks:
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| Defiance Gold Miners LightningSpread(TM) Income ETF | Risk of Investing in Gold and Silver Mining Companies [Member] | |||||||||||||||||||||||||
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| Defiance Gold Miners LightningSpread(TM) Income ETF | Special Risk Considerations of Investing in Canadian Issuers [Member] | |||||||||||||||||||||||||
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| Defiance Gold Miners LightningSpread(TM) Income ETF | Special Risk Considerations of Investing in Australian Issuers [Member] | |||||||||||||||||||||||||
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| Defiance Gold Miners LightningSpread(TM) Income ETF | Special Risk Considerations of Investing in African Issuers [Member] | |||||||||||||||||||||||||
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| Defiance Gold Miners LightningSpread(TM) Income ETF | Risk of Investing in Foreign Securities [Member] | |||||||||||||||||||||||||
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| Defiance Gold Miners LightningSpread(TM) Income ETF | Risk of Investing in Emerging Market Issuers [Member] | |||||||||||||||||||||||||
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| Defiance Gold Miners LightningSpread(TM) Income ETF | Risk of Investing in Depositary Receipts [Member] | |||||||||||||||||||||||||
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| Defiance Gold Miners LightningSpread(TM) Income ETF | Risk of Investing in Small- and Medium-Capitalization Companies [Member] | |||||||||||||||||||||||||
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| Defiance Gold Miners LightningSpread(TM) Income ETF | Equity Securities Risk [Member] | |||||||||||||||||||||||||
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| Defiance Gold Miners LightningSpread(TM) Income ETF | Foreign Currency Risk [Member] | |||||||||||||||||||||||||
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| Defiance Gold Miners LightningSpread(TM) Income ETF | Index Tracking Risk [Member] | |||||||||||||||||||||||||
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| Defiance Gold Miners LightningSpread(TM) Income ETF | Passive Management Risk [Member] | |||||||||||||||||||||||||
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| Defiance Gold Miners LightningSpread(TM) Income ETF | Non-Diversified and Index-Related Concentration Risks [Member] | |||||||||||||||||||||||||
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| Defiance Gold Miners LightningSpread(TM) Income ETF | Operationals Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Operational Risk. The Fund is subject to risks arising from various operational factors, including, but not limited to, human error, processing and communication errors, errors of the Fund’s service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund relies on third-parties for a range of services, including custody. Any delay or failure relating to engaging or maintaining such service providers may affect the Fund’s ability to meet its investment objective. Although the Fund and Adviser seek to reduce these operational risks through controls and procedures, there is no way to completely protect against such risks.
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| Defiance Gold Miners LightningSpread(TM) Income ETF | Risk Lose Money [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | The Fund may not achieve its investment objective and there is a risk that you could lose all of your money invested in the Fund. | ||||||||||||||||||||||||
| Defiance Gold Miners LightningSpread(TM) Income ETF | Risk Nondiversified Status [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Non-Diversification Risk. Because the Fund is “non-diversified,” it may invest a greater percentage of its assets in the securities of a single issuer or a smaller number of issuers than if it was a diversified fund. As a result, a decline in the value of an investment in a single issuer or a smaller number of issuers could cause the Fund’s overall value to decline to a greater degree than if the Fund held a more diversified portfolio.
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| Defiance Silver LightningSpread(TM) Income ETF | Derivatives Risks [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Derivatives Risks. Derivatives are financial instruments that derive value from the underlying reference asset or assets, such as stocks, bonds, or funds (including ETFs), interest rates or indexes. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other ordinary investments, including risk related to the market, imperfect correlation with underlying investments or the Fund’s other portfolio holdings, higher price volatility, lack of availability, counterparty risk, liquidity, valuation and legal restrictions. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with ordinary portfolio securities transactions. The use of derivatives may result in larger losses or smaller gains than directly investing in securities. When the Fund uses derivatives, there may be an imperfect correlation between the value of the underlying reference asset and the derivative, which may prevent the Fund from achieving its investment objective. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of those amounts initially invested. In addition, the Fund’s investments in derivatives are subject to the following risks:
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| Defiance Silver LightningSpread(TM) Income ETF | Options Contracts [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
Although the Fund may use options to provide synthetic exposure to the Underlying ETP, option prices may not perfectly replicate the rate of change of the Underlying ETP prior to expiration, resulting in potential tracking differences. Similarly, the premiums received from selling put spreads are influenced by market volatility and the specific strike prices selected, which can vary based on market conditions.
The Fund may experience downside risk from certain options positions, including the potential for purchased options to expire worthless, resulting in the loss of premiums paid. Writing (selling) options also exposes the Fund to risk of loss, which may exceed the premiums received. For example, selling put options exposes the Fund to the risk that the price of the Underlying ETP declines below the strike price, potentially resulting in substantial losses. Selling put spreads limits these losses to the difference between the strike prices of the sold and purchased puts, less the net premium received, but does not eliminate risk.
The Fund may encounter challenges in managing written options positions, particularly in volatile or illiquid markets, where closing or adjusting positions may be difficult or costly. Additionally, the process of rolling options positions, replacing expiring options with new contracts to maintain exposure, can involve significant transaction costs and expose the Fund to additional risks, such as adverse price movements during the roll period or reduced liquidity in the desired contracts. The Fund may also face margin requirements associated with written options, which could require the Fund to liquidate other assets to meet these obligations, potentially at unfavorable prices. Collectively, these risks may result in losses or reduced investment efficiency for the Fund.
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| Defiance Silver LightningSpread(TM) Income ETF | Swap Agreements [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
The swap agreements in which the Fund invests are generally traded in the over-the-counter market, which generally has less transparency than exchange-traded derivative instruments. In a standard swap transaction, two parties agree to exchange the return (or differentials in rates of return) earned or realized on particular predetermined reference assets, securities, or instruments. The gross return to be exchanged or “swapped” between the parties is calculated based on a notional amount or the return on or change in value of a particular dollar amount invested in the reference asset.
If the Underlying ETP experiences a significant price movement that causes a material change in the Fund’s net assets, the terms of a swap agreement between the Fund and its counterparty may permit the counterparty to close out the swap transaction with the Fund. In that event, the Fund may be unable to enter into another swap agreement or invest in other derivatives to maintain exposure consistent with its investment objective. This may temporarily reduce the Fund’s ability to maintain its intended level of synthetic exposure until replacement transactions can be established.
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| Defiance Silver LightningSpread(TM) Income ETF | Counterparty Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Counterparty Risk. The Fund is subject to counterparty risk by virtue of its investments in options contracts. Transactions in some types of derivatives, including options, are required to be centrally cleared (“cleared derivatives”). In a transaction involving cleared derivatives, the Fund’s counterparty is a clearing house rather than a bank or broker. Since the Fund is not a member of clearing houses and only members of a clearing house (“clearing members”) can participate directly in the clearing house, the Fund will hold cleared derivatives through accounts at clearing members. In cleared derivatives positions, the Fund will make payments (including margin payments) to and receive payments from a clearing house through their accounts at clearing members. Customer funds held at a clearing organization in connection with any options contracts are held in a commingled omnibus account and are not identified to the name of the clearing member’s individual customers. As a result, assets deposited by the Fund with any clearing member as margin for options may, in certain circumstances, be used to satisfy losses of other clients of the Fund’s clearing member. In addition, although clearing members guarantee performance of their clients’ obligations to the clearing house, there is a risk that the assets of the Fund might not be fully protected in the event of the clearing member’s bankruptcy, as the Fund would be limited to recovering only a pro rata share of all available funds segregated on behalf of the clearing member’s customers for the relevant account class. The Fund is also subject to the risk that a limited number of clearing members are willing to transact on the Fund’s behalf, which heightens the risks associated with a clearing member’s default. This risk is greater for the Fund as it seeks to hold options contracts on a single security, and not a broader range of options contracts, which may limit the number of clearing members that are willing to transact on the Fund’s behalf. If a clearing member defaults the Fund could lose some or all of the benefits of a transaction entered into by the Fund with the clearing member. If the Fund cannot find a clearing member to transact with on the Fund’s behalf, the Fund may be unable to effectively implement its investment strategy.
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| Defiance Silver LightningSpread(TM) Income ETF | Distribution Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Distribution Risk. As part of the Fund’s investment objective, the Fund seeks to provide current income twice weekly. There is no assurance that the Fund will make more than one, or any, distribution in a given week. If the Fund does make distributions, the amounts of such distributions will likely vary greatly from one distribution to the next.
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| Defiance Silver LightningSpread(TM) Income ETF | NAV Erosion Risk Due to Distributions [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
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| Defiance Silver LightningSpread(TM) Income ETF | Equity Market Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Equity Market Risk. Common stocks are generally exposed to greater risk than other types of securities, such as preferred stock and debt obligations, because common stockholders generally have inferior rights to receive payment from specific issuers. The equity securities held in the Fund’s portfolio may experience sudden, unpredictable drops in value or long periods of decline in value. This may occur because of factors that affect securities markets generally or factors affecting specific issuers, industries, or sectors in which the Fund invests. Common stocks, such as those held by the Fund, are generally exposed to greater risk than other types of securities, such as preferred stock and debt obligations, because common stockholders generally have inferior rights to receive payment from issuers.
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| Defiance Silver LightningSpread(TM) Income ETF | Concentration Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Concentration Risk. The Fund’s investment exposure will be concentrated in (or substantially exposed to) the same industry or groups of industries, if any, to which the Underlying ETP is concentrated. As a result, the Fund may be more susceptible to loss due to adverse occurrences that affect the price of such industries more than the market as a whole.
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| Defiance Silver LightningSpread(TM) Income ETF | ETF Risks [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | ETF Risks
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| Defiance Silver LightningSpread(TM) Income ETF | Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that are authorized to purchase and redeem Shares directly from the Fund (known as “Authorized Participants” or “APs”). In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services; or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
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| Defiance Silver LightningSpread(TM) Income ETF | Cash Redemption Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Cash Redemption Risk. The Fund’s investment strategy may require it to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. For example, the Fund may not be able to redeem in-kind certain securities held by the Fund (e.g., derivative instruments). In such a case, the Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used. By paying out higher annual capital gain distributions, investors may be subjected to increased capital gains taxes. Additionally, there may be brokerage costs or taxable gains or losses that may be imposed on the Fund in connection with a cash redemption that may not have occurred if the Fund had made a redemption in-kind. These costs could decrease the value of the Fund to the extent they are not offset by a transaction fee payable by an AP.
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| Defiance Silver LightningSpread(TM) Income ETF | Costs of Buying or Selling Shares [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
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| Defiance Silver LightningSpread(TM) Income ETF | Shares May Trade at Prices Other Than NAV [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
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| Defiance Silver LightningSpread(TM) Income ETF | Trading [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Trading. Although Shares are listed on a national securities exchange, such as Cboe BZX Exchange, Inc. (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that an active trading market for the Shares will develop or be maintained or that the Shares will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Shares. Shares trade on the Exchange at market price that may be below, at or above the Fund’s NAV. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable. In addition, trading in Shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange “circuit breaker” rules. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged. As a result, the Fund could be adversely affected and be unable to implement its investment strategies in the event of an unscheduled closing.
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| Defiance Silver LightningSpread(TM) Income ETF | Economic and Market Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Economic and Market Risk. Economies and financial markets throughout the world are becoming increasingly interconnected, which increases the likelihood that events or conditions in one country or region will adversely impact markets or issuers in other countries or regions. Securities in the Fund’s portfolio may underperform in comparison to securities in the general financial markets, a particular financial market, or other asset classes, due to a number of factors, including inflation (or expectations for inflation), deflation (or expectations for deflation), interest rates, global demand for particular products or resources, market instability, financial system instability, debt crises and downgrades, embargoes, tariffs, sanctions and other trade barriers, regulatory events, other governmental trade or market control programs and related geopolitical events. In addition, the value of the Fund’s investments may be negatively affected by the occurrence of global events such as war, terrorism, environmental disasters, natural disasters or events, country instability, and infectious disease epidemics or pandemics. The imposition by the U.S. of tariffs on goods imported from foreign countries and reciprocal tariffs levied on U.S. goods by those countries also may lead to volatility and instability in domestic and foreign markets.
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| Defiance Silver LightningSpread(TM) Income ETF | High Portfolio Turnover Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | High Portfolio Turnover Risk. The Fund may actively and frequently trade all or a significant portion of the Fund’s holdings. A high portfolio turnover rate increases transaction costs, which may increase the Fund’s expenses. Frequent trading may also cause adverse tax consequences for investors in the Fund due to an increase in short-term capital gains.
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| Defiance Silver LightningSpread(TM) Income ETF | Inflation Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Inflation Risk. Inflation risk is the risk that the value of assets or income from investments will be less in the future as inflation decreases the value of money. As inflation increases, the present value of the Fund’s assets and distributions, if any, may decline.
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| Defiance Silver LightningSpread(TM) Income ETF | Money Market Instrument Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Money Market Instrument Risk. The Fund may use a variety of money market instruments for cash management purposes, including money market funds, depositary accounts and repurchase agreements. Repurchase agreements are contracts in which a seller of securities agrees to buy the securities back at a specified time and price. Repurchase agreements may be subject to market and credit risk related to the collateral securing the repurchase agreement. Money market instruments, including money market funds, may lose money through fees or other means.
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| Defiance Silver LightningSpread(TM) Income ETF | New Fund Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | New Fund Risk. The Fund is a recently organized management investment company with no operating history. As a result, prospective investors do not have a track record or history on which to base their investment decisions.
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| Defiance Silver LightningSpread(TM) Income ETF | Operational Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Operational Risk. The Fund is subject to risks arising from various operational factors, including, but not limited to, human error, processing and communication errors, errors of the Fund’s service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund relies on third-parties for a range of services, including custody. Any delay or failure relating to engaging or maintaining such service providers may affect the Fund’s ability to meet its investment objective. Although the Fund and Adviser seek to reduce these operational risks through controls and procedures, there is no way to completely protect against such risks.
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| Defiance Silver LightningSpread(TM) Income ETF | Tax Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Tax Risk. The Fund intends to elect and to qualify each year to be treated as a RIC under Subchapter M of the Code. As a RIC, the Fund will not be subject to U.S. federal income tax on the portion of its net investment income and net capital gain that it distributes to Shareholders, provided that it satisfies certain requirements of the Code. If the Fund does not qualify as a RIC for any taxable year and certain relief provisions are not available, the Fund’s taxable income will be subject to tax at the Fund level and to a further tax at the shareholder level when such income is distributed.
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| Defiance Silver LightningSpread(TM) Income ETF | U.S. Government and U.S. Agency Obligations Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | U.S. Government and U.S. Agency Obligations Risk. The Fund may invest in securities issued by the U.S. government or its agencies or instrumentalities. U.S. Government obligations include securities issued or guaranteed as to principal and interest by the U.S. Government, its agencies or instrumentalities, such as the U.S. Treasury. Payment of principal and interest on U.S. Government obligations may be backed by the full faith and credit of the United States or may be backed solely by the issuing or guaranteeing agency or instrumentality itself. In the latter case, the investor must look principally to the agency or instrumentality issuing or guaranteeing the obligation for ultimate repayment, which agency or instrumentality may be privately owned. There can be no assurance that the U.S. Government would provide financial support to its agencies or instrumentalities (including government-sponsored enterprises) where it is not obligated to do so.
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| Defiance Silver LightningSpread(TM) Income ETF | No 1940 Act Protections [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
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| Defiance Silver LightningSpread(TM) Income ETF | SLV Risks [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | SLV Risks. The Fund invests in derivative instruments that are based on the value of SLV. This subjects the Fund to certain of the same risks as if it owned shares of SLV, even though it does not. By virtue of the Fund’s investments in derivative instruments that are based on the value of SLV, the Fund may also be subject to the following risks:
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| Defiance Silver LightningSpread(TM) Income ETF | SLV Trading Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
SLV’s exclusive investment in silver heightens its volatility compared to more diversified portfolios. Silver prices, which SLV’s net asset value closely tracks, have historically experienced significant and unpredictable fluctuations. SLV is a speculative investment, suitable primarily for those who can absorb potential losses. The physical silver market’s supply and demand dynamics can further complicate this investment. For example, if the demand for silver exceeds the available supply that meets SLV’s standards, it could obstruct the issuance of new shares. Such a supply-demand mismatch may lead to increased volatility in the share price and a significant divergence from the net asset value. This scenario highlights the speculative nature of silver investments and emphasizes the need for investors to be cognizant of the potential for substantial losses or gains, influenced by market conditions and the inherent volatility of silver.
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| Defiance Silver LightningSpread(TM) Income ETF | Indirect Investments in SLV [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
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| Defiance Silver LightningSpread(TM) Income ETF | SLV Performance Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
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| Defiance Silver LightningSpread(TM) Income ETF | Risk Lose Money [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | The Fund may not achieve its investment objective and there is a risk that you could lose all of your money invested in the Fund. | ||||||||||||||||||||||||
| Defiance Silver LightningSpread(TM) Income ETF | Risk Nondiversified Status [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Non-Diversification Risk. Because the Fund is “non-diversified,” it may invest a greater percentage of its assets in the securities of a single issuer or a smaller number of issuers than if it was a diversified fund. As a result, a decline in the value of an investment in a single issuer or a smaller number of issuers could cause the Fund’s overall value to decline to a greater degree than if the Fund held a more diversified portfolio.
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| Defiance Solana LightningSpread(TM) Income ETF | Derivatives Risks [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Derivatives Risks. Derivatives are financial instruments that derive value from the underlying reference asset or assets, such as stocks, bonds, or funds (including ETFs), interest rates or indexes. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other ordinary investments, including risk related to the market, imperfect correlation with underlying investments or the Fund’s other portfolio holdings, higher price volatility, lack of availability, counterparty risk, liquidity, valuation and legal restrictions. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with ordinary portfolio securities transactions. The use of derivatives may result in larger losses or smaller gains than directly investing in securities. When the Fund uses derivatives, there may be an imperfect correlation between the value of the underlying reference asset and the derivative, which may prevent the Fund from achieving its investment objective. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of those amounts initially invested. In addition, the Fund’s investments in derivatives are subject to the following risks:
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| Defiance Solana LightningSpread(TM) Income ETF | Options Contracts [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
Although the Fund may use options to provide synthetic exposure to the Underlying ETF, option prices may not perfectly replicate the rate of change of the Underlying ETF prior to expiration, resulting in potential tracking differences. Similarly, the premiums received from selling put spreads are influenced by market volatility and the specific strike prices selected, which can vary based on market conditions.
The Fund may experience downside risk from certain options positions, including the potential for purchased options to expire worthless, resulting in the loss of premiums paid. Writing (selling) options also exposes the Fund to risk of loss, which may exceed the premiums received. For example, selling put options exposes the Fund to the risk that the price of the Underlying ETF declines below the strike price, potentially resulting in substantial losses. Selling put spreads limits these losses to the difference between the strike prices of the sold and purchased puts, less the net premium received, but does not eliminate risk.
The Fund may encounter challenges in managing written options positions, particularly in volatile or illiquid markets, where closing or adjusting positions may be difficult or costly. Additionally, the process of rolling options positions, replacing expiring options with new contracts to maintain exposure, can involve significant transaction costs and expose the Fund to additional risks, such as adverse price movements during the roll period or reduced liquidity in the desired contracts. The Fund may also face margin requirements associated with written options, which could require the Fund to liquidate other assets to meet these obligations, potentially at unfavorable prices. Collectively, these risks may result in losses or reduced investment efficiency for the Fund.
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| Defiance Solana LightningSpread(TM) Income ETF | Swap Agreements [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
The swap agreements in which the Fund invests are generally traded in the over-the-counter market, which generally has less transparency than exchange-traded derivative instruments. In a standard swap transaction, two parties agree to exchange the return (or differentials in rates of return) earned or realized on particular predetermined reference assets, securities, or instruments. The gross return to be exchanged or “swapped” between the parties is calculated based on a notional amount or the return on or change in value of a particular dollar amount invested in the reference asset.
If the Underlying ETF experiences a significant price movement that causes a material change in the Fund’s net assets, the terms of a swap agreement between the Fund and its counterparty may permit the counterparty to close out the swap transaction with the Fund. In that event, the Fund may be unable to enter into another swap agreement or invest in other derivatives to maintain exposure consistent with its investment objective. This may temporarily reduce the Fund’s ability to maintain its intended level of synthetic exposure until replacement transactions can be established.
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| Defiance Solana LightningSpread(TM) Income ETF | Counterparty Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Counterparty Risk. The Fund is subject to counterparty risk by virtue of its investments in options contracts. Transactions in some types of derivatives, including options, are required to be centrally cleared (“cleared derivatives”). In a transaction involving cleared derivatives, the Fund’s counterparty is a clearing house rather than a bank or broker. Since the Fund is not a member of clearing houses and only members of a clearing house (“clearing members”) can participate directly in the clearing house, the Fund will hold cleared derivatives through accounts at clearing members. In cleared derivatives positions, the Fund will make payments (including margin payments) to and receive payments from a clearing house through their accounts at clearing members. Customer funds held at a clearing organization in connection with any options contracts are held in a commingled omnibus account and are not identified to the name of the clearing member’s individual customers. As a result, assets deposited by the Fund with any clearing member as margin for options may, in certain circumstances, be used to satisfy losses of other clients of the Fund’s clearing member. In addition, although clearing members guarantee performance of their clients’ obligations to the clearing house, there is a risk that the assets of the Fund might not be fully protected in the event of the clearing member’s bankruptcy, as the Fund would be limited to recovering only a pro rata share of all available funds segregated on behalf of the clearing member’s customers for the relevant account class. The Fund is also subject to the risk that a limited number of clearing members are willing to transact on the Fund’s behalf, which heightens the risks associated with a clearing member’s default. This risk is greater for the Fund as it seeks to hold options contracts on a single security, and not a broader range of options contracts, which may limit the number of clearing members that are willing to transact on the Fund’s behalf. If a clearing member defaults the Fund could lose some or all of the benefits of a transaction entered into by the Fund with the clearing member. If the Fund cannot find a clearing member to transact with on the Fund’s behalf, the Fund may be unable to effectively implement its investment strategy.
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| Defiance Solana LightningSpread(TM) Income ETF | Distribution Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Distribution Risk. As part of the Fund’s investment objective, the Fund seeks to provide current income twice weekly. There is no assurance that the Fund will make more than one, or any, distribution in a given week. If the Fund does make distributions, the amounts of such distributions will likely vary greatly from one distribution to the next.
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| Defiance Solana LightningSpread(TM) Income ETF | NAV Erosion Risk Due to Distributions [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
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| Defiance Solana LightningSpread(TM) Income ETF | Equity Market Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Equity Market Risk. Common stocks are generally exposed to greater risk than other types of securities, such as preferred stock and debt obligations, because common stockholders generally have inferior rights to receive payment from specific issuers. The equity securities held in the Fund’s portfolio may experience sudden, unpredictable drops in value or long periods of decline in value. This may occur because of factors that affect securities markets generally or factors affecting specific issuers, industries, or sectors in which the Fund invests. Common stocks, such as those held by the Fund, are generally exposed to greater risk than other types of securities, such as preferred stock and debt obligations, because common stockholders generally have inferior rights to receive payment from issuers.
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| Defiance Solana LightningSpread(TM) Income ETF | Concentration Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Concentration Risk. The Fund’s investment exposure will be concentrated in (or substantially exposed to) the same industry or groups of industries, if any, to which the Underlying ETF is concentrated. As a result, the Fund may be more susceptible to loss due to adverse occurrences that affect the price of such industries more than the market as a whole.
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| Defiance Solana LightningSpread(TM) Income ETF | ETF Risks [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | ETF Risks
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| Defiance Solana LightningSpread(TM) Income ETF | Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that are authorized to purchase and redeem Shares directly from the Fund (known as “Authorized Participants” or “APs”). In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services; or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
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| Defiance Solana LightningSpread(TM) Income ETF | Cash Redemption Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Cash Redemption Risk. The Fund’s investment strategy may require it to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. For example, the Fund may not be able to redeem in-kind certain securities held by the Fund (e.g., derivative instruments). In such a case, the Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used. By paying out higher annual capital gain distributions, investors may be subjected to increased capital gains taxes. Additionally, there may be brokerage costs or taxable gains or losses that may be imposed on the Fund in connection with a cash redemption that may not have occurred if the Fund had made a redemption in-kind. These costs could decrease the value of the Fund to the extent they are not offset by a transaction fee payable by an AP.
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| Defiance Solana LightningSpread(TM) Income ETF | Costs of Buying or Selling Shares [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
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| Defiance Solana LightningSpread(TM) Income ETF | Shares May Trade at Prices Other Than NAV [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
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| Defiance Solana LightningSpread(TM) Income ETF | Trading [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Trading. Although Shares are listed on a national securities exchange, such as Cboe BZX Exchange, Inc. (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that an active trading market for the Shares will develop or be maintained or that the Shares will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Shares. Shares trade on the Exchange at market price that may be below, at or above the Fund’s NAV. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable. In addition, trading in Shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange “circuit breaker” rules. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged. As a result, the Fund could be adversely affected and be unable to implement its investment strategies in the event of an unscheduled closing.
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| Defiance Solana LightningSpread(TM) Income ETF | Economic and Market Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Economic and Market Risk. Economies and financial markets throughout the world are becoming increasingly interconnected, which increases the likelihood that events or conditions in one country or region will adversely impact markets or issuers in other countries or regions. Securities in the Fund’s portfolio may underperform in comparison to securities in the general financial markets, a particular financial market, or other asset classes, due to a number of factors, including inflation (or expectations for inflation), deflation (or expectations for deflation), interest rates, global demand for particular products or resources, market instability, financial system instability, debt crises and downgrades, embargoes, tariffs, sanctions and other trade barriers, regulatory events, other governmental trade or market control programs and related geopolitical events. In addition, the value of the Fund’s investments may be negatively affected by the occurrence of global events such as war, terrorism, environmental disasters, natural disasters or events, country instability, and infectious disease epidemics or pandemics. The imposition by the U.S. of tariffs on goods imported from foreign countries and reciprocal tariffs levied on U.S. goods by those countries also may lead to volatility and instability in domestic and foreign markets.
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| Defiance Solana LightningSpread(TM) Income ETF | High Portfolio Turnover Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | High Portfolio Turnover Risk. The Fund may actively and frequently trade all or a significant portion of the Fund’s holdings. A high portfolio turnover rate increases transaction costs, which may increase the Fund’s expenses. Frequent trading may also cause adverse tax consequences for investors in the Fund due to an increase in short-term capital gains.
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| Defiance Solana LightningSpread(TM) Income ETF | Inflation Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Inflation Risk. Inflation risk is the risk that the value of assets or income from investments will be less in the future as inflation decreases the value of money. As inflation increases, the present value of the Fund’s assets and distributions, if any, may decline.
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| Defiance Solana LightningSpread(TM) Income ETF | Money Market Instrument Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Money Market Instrument Risk. The Fund may use a variety of money market instruments for cash management purposes, including money market funds, depositary accounts and repurchase agreements. Repurchase agreements are contracts in which a seller of securities agrees to buy the securities back at a specified time and price. Repurchase agreements may be subject to market and credit risk related to the collateral securing the repurchase agreement. Money market instruments, including money market funds, may lose money through fees or other means.
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| Defiance Solana LightningSpread(TM) Income ETF | New Fund Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | New Fund Risk. The Fund is a recently organized management investment company with no operating history. As a result, prospective investors do not have a track record or history on which to base their investment decisions.
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| Defiance Solana LightningSpread(TM) Income ETF | Operational Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Operational Risk. The Fund is subject to risks arising from various operational factors, including, but not limited to, human error, processing and communication errors, errors of the Fund’s service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund relies on third-parties for a range of services, including custody. Any delay or failure relating to engaging or maintaining such service providers may affect the Fund’s ability to meet its investment objective. Although the Fund and Adviser seek to reduce these operational risks through controls and procedures, there is no way to completely protect against such risks.
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| Defiance Solana LightningSpread(TM) Income ETF | Tax Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Tax Risk. The Fund intends to elect and to qualify each year to be treated as a regulated investment company (a “RIC”) under Subchapter M of the Internal Revenue Code of 1986, as amended (“Code”). As a RIC, the Fund will not be subject to U.S. federal income tax on the portion of its net investment income and net capital gain that it distributes to shareholders, provided that it satisfies certain requirements of the Code. If the Fund does not qualify as a RIC for any taxable year and certain relief provisions are not available, the Fund’s taxable income will be subject to tax at the Fund level and to a further tax at the shareholder level when such income is distributed. To comply with the asset diversification test applicable to a RIC, the Fund will attempt to ensure that the value of swap contracts and options on shares of a single issuer does not exceed 25% of the Fund’s value at the close of any quarter. If the value of swap contracts and options on shares of a single issuer were to exceed 25% of the Fund’s total assets at the end of a tax quarter, the Fund, generally, has a grace period to cure such lack of compliance. If the Fund fails to timely cure, it may no longer be eligible to be treated as a RIC.
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| Defiance Solana LightningSpread(TM) Income ETF | U.S. Government and U.S. Agency Obligations Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | U.S. Government and U.S. Agency Obligations Risk. The Fund may invest in securities issued by the U.S. government or its agencies or instrumentalities. U.S. Government obligations include securities issued or guaranteed as to principal and interest by the U.S. Government, its agencies or instrumentalities, such as the U.S. Treasury. Payment of principal and interest on U.S. Government obligations may be backed by the full faith and credit of the United States or may be backed solely by the issuing or guaranteeing agency or instrumentality itself. In the latter case, the investor must look principally to the agency or instrumentality issuing or guaranteeing the obligation for ultimate repayment, which agency or instrumentality may be privately owned. There can be no assurance that the U.S. Government would provide financial support to its agencies or instrumentalities (including government-sponsored enterprises) where it is not obligated to do so.
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| Defiance Solana LightningSpread(TM) Income ETF | SOLZ Risks [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | SOLZ Risks. The Fund invests in instruments based on the value of SOLZ. The Fund is therefore subject to certain of the same risks as if it owned shares of SOLZ, as well as the risks associated with the assets held by SOLZ, even though the Fund does not hold those assets directly. The value of SOLZ will fluctuate with the price of SOL, which is influenced by regulatory developments, technology changes, network adoption, competition, supply/demand dynamics in the Solana ecosystem, investor sentiment and other factors. Brokerage, custody, management fees and other expenses may negatively impact SOLZ’s performance and thereby the value of the Fund’s shares.
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| Defiance Solana LightningSpread(TM) Income ETF | Solana Futures Contracts and Rolling Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
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| Defiance Solana LightningSpread(TM) Income ETF | Futures Market and Leverage Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
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| Defiance Solana LightningSpread(TM) Income ETF | Position Limits, Price Limits, and Market Disruptions [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
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| Defiance Solana LightningSpread(TM) Income ETF | Regulatory and Instrument-Selection Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
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| Defiance Solana LightningSpread(TM) Income ETF | Liquidity, Counterparty, and Clearing Risks [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
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| Defiance Solana LightningSpread(TM) Income ETF | Operational, Trading, and Market Structure Risks [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
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| Defiance Solana LightningSpread(TM) Income ETF | SOL Risks [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | SOL Risks. The Fund’s investment strategy, involving indirect exposure to Solana is subject to uncertainties, and potential financial losses. SOL and SOL-related investments are relatively new and subject to unique and substantial risks. SOL has historically been subject to significant price volatility and the value of an investment in the Fund could decline rapidly and significantly. The performance of SOL-related investments, and therefore the performance of the Fund, may differ significantly from the performance of SOL. As with all investments, there is no assurance of profit, and investors should be cognizant of these specific risks associated with SOL and SOL-related investments:
The realization of any of these risks could result in a decline in the acceptance of SOL and consequently a reduction in the value of SOL, SOL-related Investments, and the Fund.
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| Defiance Solana LightningSpread(TM) Income ETF | Risk Lose Money [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | The Fund may not achieve its investment objective and there is a risk that you could lose all of your money invested in the Fund. | ||||||||||||||||||||||||
| Defiance Solana LightningSpread(TM) Income ETF | Risk Nondiversified Status [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Non-Diversification Risk. Because the Fund is “non-diversified,” it may invest a greater percentage of its assets in the securities of a single issuer or a smaller number of issuers than if it was a diversified fund. As a result, a decline in the value of an investment in a single issuer or a smaller number of issuers could cause the Fund’s overall value to decline to a greater degree than if the Fund held a more diversified portfolio.
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| Defiance XRP LightningSpread(TM) Income ETF | Derivatives Risks [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Derivatives Risks. Derivatives are financial instruments that derive value from the underlying reference asset or assets, such as stocks, bonds, or funds (including ETFs), interest rates or indexes. The Fund’s investments in derivatives may pose risks in addition to, and greater than, those associated with directly investing in securities or other ordinary investments, including risk related to the market, imperfect correlation with underlying investments or the Fund’s other portfolio holdings, higher price volatility, lack of availability, counterparty risk, liquidity, valuation and legal restrictions. The use of derivatives is a highly specialized activity that involves investment techniques and risks different from those associated with ordinary portfolio securities transactions. The use of derivatives may result in larger losses or smaller gains than directly investing in securities. When the Fund uses derivatives, there may be an imperfect correlation between the value of the underlying reference asset and the derivative, which may prevent the Fund from achieving its investment objective. Because derivatives often require only a limited initial investment, the use of derivatives may expose the Fund to losses in excess of those amounts initially invested. In addition, the Fund’s investments in derivatives are subject to the following risks:
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| Defiance XRP LightningSpread(TM) Income ETF | Options Contracts [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
Although the Fund may use options to provide synthetic exposure to the Underlying ETF, option prices may not perfectly replicate the rate of change of the Underlying ETF prior to expiration, resulting in potential tracking differences. Similarly, the premiums received from selling put spreads are influenced by market volatility and the specific strike prices selected, which can vary based on market conditions.
The Fund may experience downside risk from certain options positions, including the potential for purchased options to expire worthless, resulting in the loss of premiums paid. Writing (selling) options also exposes the Fund to risk of loss, which may exceed the premiums received. For example, selling put options exposes the Fund to the risk that the price of the Underlying ETF declines below the strike price, potentially resulting in substantial losses. Selling put spreads limits these losses to the difference between the strike prices of the sold and purchased puts, less the net premium received, but does not eliminate risk.
The Fund may encounter challenges in managing written options positions, particularly in volatile or illiquid markets, where closing or adjusting positions may be difficult or costly. Additionally, the process of rolling options positions, replacing expiring options with new contracts to maintain exposure, can involve significant transaction costs and expose the Fund to additional risks, such as adverse price movements during the roll period or reduced liquidity in the desired contracts. The Fund may also face margin requirements associated with written options, which could require the Fund to liquidate other assets to meet these obligations, potentially at unfavorable prices. Collectively, these risks may result in losses or reduced investment efficiency for the Fund.
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| Defiance XRP LightningSpread(TM) Income ETF | Swap Agreements [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
The swap agreements in which the Fund invests are generally traded in the over-the-counter market, which generally has less transparency than exchange-traded derivative instruments. In a standard swap transaction, two parties agree to exchange the return (or differentials in rates of return) earned or realized on particular predetermined reference assets, securities, or instruments. The gross return to be exchanged or “swapped” between the parties is calculated based on a notional amount or the return on or change in value of a particular dollar amount invested in the reference asset.
If the Underlying ETF experiences a significant price movement that causes a material change in the Fund’s net assets, the terms of a swap agreement between the Fund and its counterparty may permit the counterparty to close out the swap transaction with the Fund. In that event, the Fund may be unable to enter into another swap agreement or invest in other derivatives to maintain exposure consistent with its investment objective. This may temporarily reduce the Fund’s ability to maintain its intended level of synthetic exposure until replacement transactions can be established.
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| Defiance XRP LightningSpread(TM) Income ETF | Counterparty Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Counterparty Risk. The Fund is subject to counterparty risk by virtue of its investments in options contracts. Transactions in some types of derivatives, including options, are required to be centrally cleared (“cleared derivatives”). In a transaction involving cleared derivatives, the Fund’s counterparty is a clearing house rather than a bank or broker. Since the Fund is not a member of clearing houses and only members of a clearing house (“clearing members”) can participate directly in the clearing house, the Fund will hold cleared derivatives through accounts at clearing members. In cleared derivatives positions, the Fund will make payments (including margin payments) to and receive payments from a clearing house through their accounts at clearing members. Customer funds held at a clearing organization in connection with any options contracts are held in a commingled omnibus account and are not identified to the name of the clearing member’s individual customers. As a result, assets deposited by the Fund with any clearing member as margin for options may, in certain circumstances, be used to satisfy losses of other clients of the Fund’s clearing member. In addition, although clearing members guarantee performance of their clients’ obligations to the clearing house, there is a risk that the assets of the Fund might not be fully protected in the event of the clearing member’s bankruptcy, as the Fund would be limited to recovering only a pro rata share of all available funds segregated on behalf of the clearing member’s customers for the relevant account class. The Fund is also subject to the risk that a limited number of clearing members are willing to transact on the Fund’s behalf, which heightens the risks associated with a clearing member’s default. This risk is greater for the Fund as it seeks to hold options contracts on a single security, and not a broader range of options contracts, which may limit the number of clearing members that are willing to transact on the Fund’s behalf. If a clearing member defaults the Fund could lose some or all of the benefits of a transaction entered into by the Fund with the clearing member. If the Fund cannot find a clearing member to transact with on the Fund’s behalf, the Fund may be unable to effectively implement its investment strategy.
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| Defiance XRP LightningSpread(TM) Income ETF | Distribution Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Distribution Risk. As part of the Fund’s investment objective, the Fund seeks to provide current income twice weekly. There is no assurance that the Fund will make more than one, or any, distribution in a given week. If the Fund does make distributions, the amounts of such distributions will likely vary greatly from one distribution to the next.
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| Defiance XRP LightningSpread(TM) Income ETF | NAV Erosion Risk Due to Distributions [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
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| Defiance XRP LightningSpread(TM) Income ETF | Equity Market Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Equity Market Risk. Common stocks are generally exposed to greater risk than other types of securities, such as preferred stock and debt obligations, because common stockholders generally have inferior rights to receive payment from specific issuers. The equity securities held in the Fund’s portfolio may experience sudden, unpredictable drops in value or long periods of decline in value. This may occur because of factors that affect securities markets generally or factors affecting specific issuers, industries, or sectors in which the Fund invests. Common stocks, such as those held by the Fund, are generally exposed to greater risk than other types of securities, such as preferred stock and debt obligations, because common stockholders generally have inferior rights to receive payment from issuers.
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| Defiance XRP LightningSpread(TM) Income ETF | Concentration Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Concentration Risk. The Fund’s investment exposure will be concentrated in (or substantially exposed to) the same industry or groups of industries, if any, to which the Underlying ETF is concentrated. As a result, the Fund may be more susceptible to loss due to adverse occurrences that affect the price of such industries more than the market as a whole.
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| Defiance XRP LightningSpread(TM) Income ETF | ETF Risks [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | ETF Risks
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| Defiance XRP LightningSpread(TM) Income ETF | Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that are authorized to purchase and redeem Shares directly from the Fund (known as “Authorized Participants” or “APs”). In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services; or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
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| Defiance XRP LightningSpread(TM) Income ETF | Cash Redemption Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Cash Redemption Risk. The Fund’s investment strategy may require it to redeem Shares for cash or to otherwise include cash as part of its redemption proceeds. For example, the Fund may not be able to redeem in-kind certain securities held by the Fund (e.g., derivative instruments). In such a case, the Fund may be required to sell or unwind portfolio investments to obtain the cash needed to distribute redemption proceeds. This may cause the Fund to recognize a capital gain that it might not have recognized if it had made a redemption in-kind. As a result, the Fund may pay out higher annual capital gain distributions than if the in-kind redemption process was used. By paying out higher annual capital gain distributions, investors may be subjected to increased capital gains taxes. Additionally, there may be brokerage costs or taxable gains or losses that may be imposed on the Fund in connection with a cash redemption that may not have occurred if the Fund had made a redemption in-kind. These costs could decrease the value of the Fund to the extent they are not offset by a transaction fee payable by an AP.
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| Defiance XRP LightningSpread(TM) Income ETF | Costs of Buying or Selling Shares [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
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| Defiance XRP LightningSpread(TM) Income ETF | Shares May Trade at Prices Other Than NAV [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] |
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| Defiance XRP LightningSpread(TM) Income ETF | Trading [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Trading. Although Shares are listed on a national securities exchange, such as Cboe BZX Exchange, Inc. (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that an active trading market for the Shares will develop or be maintained or that the Shares will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Shares. Shares trade on the Exchange at market price that may be below, at or above the Fund’s NAV. Trading in Shares on the Exchange may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable. In addition, trading in Shares on the Exchange is subject to trading halts caused by extraordinary market volatility pursuant to the Exchange “circuit breaker” rules. There can be no assurance that the requirements of the Exchange necessary to maintain the listing of the Fund will continue to be met or will remain unchanged. As a result, the Fund could be adversely affected and be unable to implement its investment strategies in the event of an unscheduled closing.
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| Defiance XRP LightningSpread(TM) Income ETF | Economic and Market Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Economic and Market Risk. Economies and financial markets throughout the world are becoming increasingly interconnected, which increases the likelihood that events or conditions in one country or region will adversely impact markets or issuers in other countries or regions. Securities in the Fund’s portfolio may underperform in comparison to securities in the general financial markets, a particular financial market, or other asset classes, due to a number of factors, including inflation (or expectations for inflation), deflation (or expectations for deflation), interest rates, global demand for particular products or resources, market instability, financial system instability, debt crises and downgrades, embargoes, tariffs, sanctions and other trade barriers, regulatory events, other governmental trade or market control programs and related geopolitical events. In addition, the value of the Fund’s investments may be negatively affected by the occurrence of global events such as war, terrorism, environmental disasters, natural disasters or events, country instability, and infectious disease epidemics or pandemics. The imposition by the U.S. of tariffs on goods imported from foreign countries and reciprocal tariffs levied on U.S. goods by those countries also may lead to volatility and instability in domestic and foreign markets.
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| Defiance XRP LightningSpread(TM) Income ETF | High Portfolio Turnover Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | High Portfolio Turnover Risk. The Fund may actively and frequently trade all or a significant portion of the Fund’s holdings. A high portfolio turnover rate increases transaction costs, which may increase the Fund’s expenses. Frequent trading may also cause adverse tax consequences for investors in the Fund due to an increase in short-term capital gains.
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| Defiance XRP LightningSpread(TM) Income ETF | Inflation Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Inflation Risk. Inflation risk is the risk that the value of assets or income from investments will be less in the future as inflation decreases the value of money. As inflation increases, the present value of the Fund’s assets and distributions, if any, may decline.
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| Defiance XRP LightningSpread(TM) Income ETF | Money Market Instrument Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Money Market Instrument Risk. The Fund may use a variety of money market instruments for cash management purposes, including money market funds, depositary accounts and repurchase agreements. Repurchase agreements are contracts in which a seller of securities agrees to buy the securities back at a specified time and price. Repurchase agreements may be subject to market and credit risk related to the collateral securing the repurchase agreement. Money market instruments, including money market funds, may lose money through fees or other means.
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| Defiance XRP LightningSpread(TM) Income ETF | New Fund Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | New Fund Risk. The Fund is a recently organized management investment company with no operating history. As a result, prospective investors do not have a track record or history on which to base their investment decisions.
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| Defiance XRP LightningSpread(TM) Income ETF | Operational Risk [Member] | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Risk [Text Block] | Operational Risk. The Fund is subject to risks arising from various operational factors, including, but not limited to, human error, processing and communication errors, errors of the Fund’s service providers, counterparties or other third-parties, failed or inadequate processes and technology or systems failures. The Fund relies on third-parties for a range of services, including custody. Any delay or failure relating to engaging or maintaining such service providers may affect the Fund’s ability to meet its investment objective. Although the Fund and Adviser seek to reduce these operational risks through controls and procedures, there is no way to completely protect against such risks.
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| Defiance XRP LightningSpread(TM) Income ETF | Tax Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Tax Risk. The Fund intends to elect and to qualify each year to be treated as a regulated investment company (a “RIC”) under Subchapter M of the Internal Revenue Code of 1986, as amended (“Code”). As a RIC, the Fund will not be subject to U.S. federal income tax on the portion of its net investment income and net capital gain that it distributes to shareholders, provided that it satisfies certain requirements of the Code. If the Fund does not qualify as a RIC for any taxable year and certain relief provisions are not available, the Fund’s taxable income will be subject to tax at the Fund level and to a further tax at the shareholder level when such income is distributed. To comply with the asset diversification test applicable to a RIC, the Fund will attempt to ensure that the value of swap contracts and options on shares of a single issuer does not exceed 25% of the Fund’s value at the close of any quarter. If the value of swap contracts and options on shares of a single issuer were to exceed 25% of the Fund’s total assets at the end of a tax quarter, the Fund, generally, has a grace period to cure such lack of compliance. If the Fund fails to timely cure, it may no longer be eligible to be treated as a RIC.
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| Defiance XRP LightningSpread(TM) Income ETF | U.S. Government and U.S. Agency Obligations Risk [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | U.S. Government and U.S. Agency Obligations Risk. The Fund may invest in securities issued by the U.S. government or its agencies or instrumentalities. U.S. Government obligations include securities issued or guaranteed as to principal and interest by the U.S. Government, its agencies or instrumentalities, such as the U.S. Treasury. Payment of principal and interest on U.S. Government obligations may be backed by the full faith and credit of the United States or may be backed solely by the issuing or guaranteeing agency or instrumentality itself. In the latter case, the investor must look principally to the agency or instrumentality issuing or guaranteeing the obligation for ultimate repayment, which agency or instrumentality may be privately owned. There can be no assurance that the U.S. Government would provide financial support to its agencies or instrumentalities (including government-sponsored enterprises) where it is not obligated to do so.
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| Defiance XRP LightningSpread(TM) Income ETF | Futures Market and Leverage Risk [Member] | |||||||||||||||||||||||||
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| Defiance XRP LightningSpread(TM) Income ETF | Position Limits, Price Limits, and Market Disruptions [Member] | |||||||||||||||||||||||||
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| Defiance XRP LightningSpread(TM) Income ETF | Regulatory and Instrument-Selection Risk [Member] | |||||||||||||||||||||||||
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| Defiance XRP LightningSpread(TM) Income ETF | Liquidity, Counterparty, and Clearing Risks [Member] | |||||||||||||||||||||||||
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| Defiance XRP LightningSpread(TM) Income ETF | Operational, Trading, and Market Structure Risks [Member] | |||||||||||||||||||||||||
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| Defiance XRP LightningSpread(TM) Income ETF | XRPI Risks [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | XRPI Risks. The Fund invests in instruments based on the value of XRPI. The Fund is therefore subject to certain of the same risks as if it owned shares of XRPI, as well as the risks associated with the assets held by XRPI, even though the Fund does not hold those assets directly. The value of XRPI will fluctuate with the price of XRP, which is influenced by regulatory developments, technology changes, network adoption, competition, supply/demand dynamics in the XRP ecosystem, investor sentiment and other factors. Brokerage, custody, management fees and other expenses may negatively impact XRPI’s performance and thereby the value of the Fund’s shares.
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| Defiance XRP LightningSpread(TM) Income ETF | XRP Futures Contracts and Rolling Risk [Member] | |||||||||||||||||||||||||
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| Defiance XRP LightningSpread(TM) Income ETF | XRP Risks [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | XRP Risks. The Fund’s investment strategy, involving indirect exposure to XRP is subject to uncertainties, and potential financial losses. XRP and XRP-related investments are relatively new and subject to unique and substantial risks. XRP has historically been subject to significant price volatility and the value of an investment in the Fund could decline rapidly and significantly. The performance of XRP-related investments, and therefore the performance of the Fund, may differ significantly from the performance of XRP. As with all investments, there is no assurance of profit, and investors should be cognizant of these specific risks associated with XRP and XRP-related investments:
The realization of any of these risks could result in a decline in the acceptance of XRP and consequently a reduction in the value of XRP, XRP-related Investments, and the Fund.
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| Defiance XRP LightningSpread(TM) Income ETF | Risk Lose Money [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | The Fund may not achieve its investment objective and there is a risk that you could lose all of your money invested in the Fund. | ||||||||||||||||||||||||
| Defiance XRP LightningSpread(TM) Income ETF | Risk Nondiversified Status [Member] | |||||||||||||||||||||||||
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| Risk [Text Block] | Non-Diversification Risk. Because the Fund is “non-diversified,” it may invest a greater percentage of its assets in the securities of a single issuer or a smaller number of issuers than if it was a diversified fund. As a result, a decline in the value of an investment in a single issuer or a smaller number of issuers could cause the Fund’s overall value to decline to a greater degree than if the Fund held a more diversified portfolio.
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