Investment Risks |
Jul. 10, 2026 |
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| VistaShares Space Supercycle ETF | Space Investing Risks [Member] | ||||
| Prospectus [Line Items] | ||||
| Risk [Text Block] | Space Investing Risks. The Fund invests in companies that derive a substantial portion of their revenues or operating activities from space-related technologies and services and, as a result, is subject to risks associated with companies engaged in the space industry and the broader space economy, which may cause the Fund’s investments to be more volatile than those of more diversified funds. Companies involved in the design, manufacture, or launch of spacecraft, launch vehicles, or related systems face significant risks associated with launch failures, deployment malfunctions, mission delays, and cost overruns; space launches are inherently complex and costly, and failures may result in the total loss of spacecraft or payloads, substantial financial losses, reputational harm, increased regulatory scrutiny, and adverse impacts on a company’s financial condition and stock price. Space-related businesses often rely on advanced, emerging, or unproven technologies and may be adversely affected by rapid technological change, engineering challenges, design flaws, the inability to achieve expected performance, or competitors’ development of superior or lower-cost technologies. The space industry is subject to extensive domestic and international regulation (including licensing requirements, export controls, national security restrictions, environmental regulation, and orbital debris mitigation standards), and changes in laws, regulations, or regulatory interpretations may increase compliance costs, delay operations, restrict market access, or limit the deployment or operation of space-based systems. Many space-focused companies depend on governmental or quasi-governmental customers and contracts, and reductions in government budgets, policy changes, contract terminations, delays, or failures to renew contracts could materially and adversely affect revenues and financial performance. Space-based operations are exposed to risks arising from orbital debris, collisions, congestion in Earth’s orbits, and space weather (including solar activity), any of which may damage satellites or spacecraft and result in service disruptions, data loss, reduced operational lifespans, or complete mission failure. The space economy is evolving, and many companies may have limited operating histories, depend on a narrow set of products or services, or rely on a small number of customers or missions for a substantial portion of revenues; delays in commercialization or failure to achieve anticipated adoption of space-based services may adversely affect profitability and valuations. The space industry is highly competitive and characterized by rapid innovation; increased competition may lead to pricing pressure, reduced market share, or higher research and development costs. Many space-focused companies rely on governmental or quasi-governmental customers and contracts, and adverse changes in government policy or budgets could materially affect revenues. The Fund may have exposure to foreign issuers (including through ADRs or securities listed on non-U.S. exchanges), which can involve political instability, geopolitical tensions, trade restrictions, sanctions, differing regulatory regimes, and currency fluctuations that may disrupt supply chains, restrict access to launch facilities or markets, or impair cross-border collaboration. Because the Fund focuses on space-related activities, it is more susceptible to adverse developments affecting the space industry, including technological setbacks, regulatory actions, or declines in investor sentiment toward space-related investments.
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| VistaShares Space Supercycle 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.
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| VistaShares Space Supercycle 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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| VistaShares Space Supercycle ETF | Concentration Risk [Member] | ||||
| Prospectus [Line Items] | ||||
| Risk [Text Block] | Concentration Risk. To the extent that the Fund concentrates in an industry, it will be subject to the risk that economic, political, or other conditions that have a negative effect on that industry will negatively impact the Fund to a greater extent than if its assets were invested in a wider variety of industries.
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| VistaShares Space Supercycle ETF | Aerospace & Defense Industry Risk [Member] | ||||
| Prospectus [Line Items] | ||||
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| VistaShares Space Supercycle ETF | Foreign Securities Risk [Member] | ||||
| Prospectus [Line Items] | ||||
| Risk [Text Block] | Foreign Securities Risk. Investments in securities or other instruments of non-U.S. issuers involve certain risks not involved in domestic investments and may experience more rapid and extreme changes in value than investments in securities of U.S. companies. Financial markets in foreign countries often are not as developed, efficient, or liquid as financial markets in the United States, and therefore, the prices of non-U.S. securities and instruments can be more volatile. In addition, the Fund will be subject to risks associated with adverse political and economic developments in foreign countries, which may include the imposition of economic sanctions. Generally, there is less readily available and reliable information about non-U.S. issuers due to less rigorous disclosure or accounting standards and regulatory practices. Investments in foreign companies’ securities, including investments via depositary receipts, are subject to special risks, including the following:
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| VistaShares Space Supercycle ETF | Currency Exchange Rate Risk [Member] | ||||
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| VistaShares Space Supercycle ETF | Depositary Receipt Risk [Member] | ||||
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| VistaShares Space Supercycle ETF | Developed Markets Risk [Member] | ||||
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| VistaShares Space Supercycle ETF | Emerging Markets Risk [Member] | ||||
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| VistaShares Space Supercycle ETF | Index-Linked Strategy Risk [Member] | ||||
| Prospectus [Line Items] | ||||
| Risk [Text Block] | Index-Linked Strategy Risk. The Fund’s strategy, though not passively replicating an Index, is linked to an Index maintained by the Index Provider that exercises complete control over the Index. The Index Provider may delay or add a rebalance date, which may adversely impact the performance of the Fund and its correlation to the Index. In addition, there is no guarantee that the methodology used by the Index Provider to identify constituents for the Index will achieve its intended result or positive performance. Errors in Index data, Index computations or the construction of the Index in accordance with its methodology may occur from time to time and may not be identified and/or corrected for a period of time or at all, which may have an adverse impact on the Fund.
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| VistaShares Space Supercycle ETF | Models and Data Risk [Member] | ||||
| Prospectus [Line Items] | ||||
| Risk [Text Block] | Models and Data Risk. The composition of the Index is heavily dependent on proprietary quantitative models as well as information and data supplied by third parties (“Models and Data”). When Models and Data prove to be incorrect or incomplete, any decisions made in reliance thereon may lead to the inclusion or exclusion of securities from the Index universe that would have been excluded or included had the Models and Data been correct and complete. If the composition of the Index reflects such errors, the Fund’s portfolio can be expected to also reflect the errors.
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| VistaShares Space Supercycle ETF | Active Management Risk [Member] | ||||
| Prospectus [Line Items] | ||||
| Risk [Text Block] | Active Management Risk. The Sub-Adviser will actively monitor the Fund’s holdings, and may not meet its investment objective based on the Sub-Adviser’s success or failure to implement investment strategies for the Fund. In addition, while the Fund seeks to achieve returns similar to those of the Index, there may be periods of time where the Fund’s holdings, and therefore its performance, deviate significantly from the holdings and performance of the Index.
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| VistaShares Space Supercycle ETF | Tracking Error Risk [Member] | ||||
| Prospectus [Line Items] | ||||
| Risk [Text Block] | Tracking Error Risk. The performance of the Fund and its Index may differ from each other for a variety of reasons. For example, the Fund incurs operating expenses and portfolio transaction costs not incurred by the Index. In addition, the Fund may not be fully invested in the securities of the Index at all times or may hold securities not included in the Index.
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| VistaShares Space Supercycle ETF | Unrelated Business Risk [Member] | ||||
| Prospectus [Line Items] | ||||
| Risk [Text Block] |
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| VistaShares Space Supercycle ETF | Market Capitalization Risk [Member] | ||||
| Prospectus [Line Items] | ||||
| Risk [Text Block] | Market Capitalization Risk.
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| VistaShares Space Supercycle 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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| VistaShares Space Supercycle ETF | Mid-Capitalization Investing [Member] | ||||
| Prospectus [Line Items] | ||||
| Risk [Text Block] | ● Mid-Capitalization Investing. The securities of mid-capitalization companies may be more vulnerable to adverse issuer, market, political, or economic developments than securities of large-capitalization companies. The securities of mid-capitalization companies generally trade in lower volumes and are subject to greater and more unpredictable price changes than large-capitalization stocks or the stock market as a whole.
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| VistaShares Space Supercycle ETF | Small-Capitalization Investing [Member] | ||||
| Prospectus [Line Items] | ||||
| Risk [Text Block] | ● Small-Capitalization Investing. The securities of small-capitalization companies may be more vulnerable to adverse issuer, market, political, or economic developments than securities of large- or mid-capitalization companies. The securities of small-capitalization companies generally trade in lower volumes and are subject to greater and more unpredictable price changes than large- or mid-capitalization stocks or the stock market as a whole. There is typically less publicly available information concerning smaller-capitalization companies than for larger, more established companies.
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| VistaShares Space Supercycle ETF | ETF Risks [Member] | ||||
| Prospectus [Line Items] | ||||
| Risk [Text Block] | ETF Risks.
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| VistaShares Space Supercycle ETF | Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk [Member] | ||||
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| VistaShares Space Supercycle ETF | Costs of Buying or Selling Shares [Member] | ||||
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| VistaShares Space Supercycle ETF | Shares May Trade at Prices Other Than NAV [Member] | ||||
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| VistaShares Space Supercycle ETF | Trading [Member] | ||||
| Prospectus [Line Items] | ||||
| Risk [Text Block] |
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| VistaShares Space Supercycle ETF | IPO Risk [Member] | ||||
| Prospectus [Line Items] | ||||
| Risk [Text Block] | IPO Risk. The Fund may purchase securities of companies that are offered in an IPO. The risk exists that the market value of IPO shares will fluctuate considerably due to factors such as the absence of a prior public market, unseasoned trading, the small number of shares available for trading and limited information about the issuer. When the Fund’s asset base is small, a significant portion of the Fund’s performance could be attributable to investments in IPOs, because such investments would have a magnified impact on the Fund.
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| VistaShares Space Supercycle 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 an extensive track record or history on which to base their investment decisions.
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| VistaShares Space Supercycle ETF | Newer Sub-Adviser Risk [Member] | ||||
| Prospectus [Line Items] | ||||
| Risk [Text Block] | Newer Sub-Adviser Risk. VistaShares is a recently formed entity and has limited experience with managing an exchange-traded fund, which may limit the Sub-Adviser’s effectiveness.
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| VistaShares Space Supercycle 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 the 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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| VistaShares Space Supercycle 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. | |||
| VistaShares Space Supercycle 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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| VistaShares Robotics Supercycle 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.
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| VistaShares Robotics Supercycle 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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| VistaShares Robotics Supercycle ETF | Concentration Risk [Member] | ||||
| Prospectus [Line Items] | ||||
| Risk [Text Block] | Concentration Risk. To the extent that the Fund concentrates in an industry, it will be subject to the risk that economic, political, or other conditions that have a negative effect on that industry will negatively impact the Fund to a greater extent than if its assets were invested in a wider variety of industries.
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| VistaShares Robotics Supercycle ETF | Foreign Securities Risk [Member] | ||||
| Prospectus [Line Items] | ||||
| Risk [Text Block] | Foreign Securities Risk. Investments in securities or other instruments of non-U.S. issuers involve certain risks not involved in domestic investments and may experience more rapid and extreme changes in value than investments in securities of U.S. companies. Financial markets in foreign countries often are not as developed, efficient, or liquid as financial markets in the United States, and therefore, the prices of non-U.S. securities and instruments can be more volatile. In addition, the Fund will be subject to risks associated with adverse political and economic developments in foreign countries, which may include the imposition of economic sanctions. Generally, there is less readily available and reliable information about non-U.S. issuers due to less rigorous disclosure or accounting standards and regulatory practices. Investments in foreign companies securities, including investments via depositary receipts, are subject to special risks, including the following:
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| VistaShares Robotics Supercycle ETF | Currency Exchange Rate Risk [Member] | ||||
| Prospectus [Line Items] | ||||
| Risk [Text Block] |
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| VistaShares Robotics Supercycle ETF | Depositary Receipt Risk [Member] | ||||
| Prospectus [Line Items] | ||||
| Risk [Text Block] |
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| VistaShares Robotics Supercycle ETF | Developed Markets Risk [Member] | ||||
| Prospectus [Line Items] | ||||
| Risk [Text Block] |
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| VistaShares Robotics Supercycle ETF | Emerging Markets Risk [Member] | ||||
| Prospectus [Line Items] | ||||
| Risk [Text Block] |
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| VistaShares Robotics Supercycle ETF | Index-Linked Strategy Risk [Member] | ||||
| Prospectus [Line Items] | ||||
| Risk [Text Block] | Index-Linked Strategy Risk. The Fund’s strategy, though not passively replicating an Index, is linked to an Index maintained by the Index Provider that exercises complete control over the Index. The Index Provider may delay or add a rebalance date, which may adversely impact the performance of the Fund and its correlation to the Index. In addition, there is no guarantee that the methodology used by the Index Provider to identify constituents for the Index will achieve its intended result or positive performance. Errors in Index data, Index computations or the construction of the Index in accordance with its methodology may occur from time to time and may not be identified and/or corrected for a period of time or at all, which may have an adverse impact on the Fund.
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| VistaShares Robotics Supercycle ETF | Models and Data Risk [Member] | ||||
| Prospectus [Line Items] | ||||
| Risk [Text Block] | Models and Data Risk. The composition of the Index is heavily dependent on proprietary quantitative models as well as information and data supplied by third parties (“Models and Data”). When Models and Data prove to be incorrect or incomplete, any decisions made in reliance thereon may lead to the inclusion or exclusion of securities from the Index universe that would have been excluded or included had the Models and Data been correct and complete. If the composition of the Index reflects such errors, the Fund’s portfolio can be expected to also reflect the errors.
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| VistaShares Robotics Supercycle ETF | Active Management Risk [Member] | ||||
| Prospectus [Line Items] | ||||
| Risk [Text Block] | Active Management Risk. The Sub-Adviser will actively monitor the Fund’s holdings, and may not meet its investment objective based on the Sub-Adviser’s success or failure to implement investment strategies for the Fund. In addition, while the Fund seeks to achieve returns similar to those of the Index, there may be periods of time where the Fund’s holdings, and therefore its performance, deviate significantly from the holdings and performance of the Index.
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| VistaShares Robotics Supercycle ETF | Tracking Error Risk [Member] | ||||
| Prospectus [Line Items] | ||||
| Risk [Text Block] | Tracking Error Risk. The performance of the Fund and its Index may differ from each other for a variety of reasons. For example, the Fund incurs operating expenses and portfolio transaction costs not incurred by the Index. In addition, the Fund may not be fully invested in the securities of the Index at all times or may hold securities not included in the Index.
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| VistaShares Robotics Supercycle ETF | Unrelated Business Risk [Member] | ||||
| Prospectus [Line Items] | ||||
| Risk [Text Block] |
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| VistaShares Robotics Supercycle ETF | Market Capitalization Risk [Member] | ||||
| Prospectus [Line Items] | ||||
| Risk [Text Block] | Market Capitalization Risk.
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| VistaShares Robotics Supercycle 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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| VistaShares Robotics Supercycle ETF | Mid-Capitalization Investing [Member] | ||||
| Prospectus [Line Items] | ||||
| Risk [Text Block] | ● Mid-Capitalization Investing. The securities of mid-capitalization companies may be more vulnerable to adverse issuer, market, political, or economic developments than securities of large-capitalization companies. The securities of mid-capitalization companies generally trade in lower volumes and are subject to greater and more unpredictable price changes than large-capitalization stocks or the stock market as a whole.
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| VistaShares Robotics Supercycle ETF | Small-Capitalization Investing [Member] | ||||
| Prospectus [Line Items] | ||||
| Risk [Text Block] | ● Small-Capitalization Investing. The securities of small-capitalization companies may be more vulnerable to adverse issuer, market, political, or economic developments than securities of large- or mid-capitalization companies. The securities of small-capitalization companies generally trade in lower volumes and are subject to greater and more unpredictable price changes than large- or mid-capitalization stocks or the stock market as a whole. There is typically less publicly available information concerning smaller-capitalization companies than for larger, more established companies.
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| VistaShares Robotics Supercycle ETF | ETF Risks [Member] | ||||
| Prospectus [Line Items] | ||||
| Risk [Text Block] | ETF Risks.
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| VistaShares Robotics Supercycle ETF | Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk [Member] | ||||
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| VistaShares Robotics Supercycle ETF | Costs of Buying or Selling Shares [Member] | ||||
| Prospectus [Line Items] | ||||
| Risk [Text Block] |
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| VistaShares Robotics Supercycle ETF | Shares May Trade at Prices Other Than NAV [Member] | ||||
| Prospectus [Line Items] | ||||
| Risk [Text Block] |
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| VistaShares Robotics Supercycle ETF | Trading [Member] | ||||
| Prospectus [Line Items] | ||||
| Risk [Text Block] |
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| VistaShares Robotics Supercycle ETF | IPO Risk [Member] | ||||
| Prospectus [Line Items] | ||||
| Risk [Text Block] | IPO Risk. The Fund may purchase securities of companies that are offered in an IPO. The risk exists that the market value of IPO shares will fluctuate considerably due to factors such as the absence of a prior public market, unseasoned trading, the small number of shares available for trading and limited information about the issuer. When the Fund’s asset base is small, a significant portion of the Fund’s performance could be attributable to investments in IPOs, because such investments would have a magnified impact on the Fund.
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| VistaShares Robotics Supercycle 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 an extensive track record or history on which to base their investment decisions.
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| VistaShares Robotics Supercycle ETF | Newer Sub-Adviser Risk [Member] | ||||
| Prospectus [Line Items] | ||||
| Risk [Text Block] | Newer Sub-Adviser Risk. VistaShares is a recently formed entity and has limited experience with managing an exchange-traded fund, which may limit the Sub-Adviser’s effectiveness.
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| VistaShares Robotics Supercycle 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 the 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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| VistaShares Robotics Supercycle ETF | Robotics & Automation Investing Risks [Member] | ||||
| Prospectus [Line Items] | ||||
| Risk [Text Block] | Robotics & Automation Investing Risks. Companies engaged in the design, manufacture, integration, or deployment of robotics and automation systems may be affected by rapid technological evolution, high research and development costs, and competitive pressures from global industrial, semiconductor, and software providers. The robotics and automation industry is sensitive to trends in industrial production, capital-expenditure cycles, supply-chain conditions, and adoption rates of automation technologies across manufacturing, logistics, transportation, and commercial sectors. Hardware and component manufacturers may face risks associated with semiconductor availability, sensor and actuator supply constraints, manufacturing delays, and reliance on specialized materials or precision engineering capabilities. Systems integrators and industrial automation firms may be adversely affected by fluctuations in factory activity, labor market dynamics, and the financial health of industrial end-users. Software and control-system developers may encounter data-security vulnerabilities, interoperability challenges, intellectual-property risks, and rapid shifts in AI, computer-vision, and automation software architecture. Companies deploying autonomous mobility systems or warehouse/logistics automation may be subject to regulatory constraints, safety and liability considerations, and varying regional standards governing autonomous technologies. These combined factors may cause companies in the robotics and automation industry to experience periods of significant volatility and performance that differs materially from the broader equity market.
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| VistaShares Robotics Supercycle ETF | Machinery Industry Risk [Member] | ||||
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| VistaShares Robotics Supercycle 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. | |||
| VistaShares Robotics Supercycle 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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| VistaShares Defense Supercycle 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.
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| VistaShares Defense Supercycle 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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| VistaShares Defense Supercycle ETF | Concentration Risk [Member] | ||||
| Prospectus [Line Items] | ||||
| Risk [Text Block] | Concentration Risk. To the extent that the Fund concentrates in an industry, it will be subject to the risk that economic, political, or other conditions that have a negative effect on that industry will negatively impact the Fund to a greater extent than if its assets were invested in a wider variety of industries.
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| VistaShares Defense Supercycle ETF | Aerospace & Defense Industry Risk [Member] | ||||
| Prospectus [Line Items] | ||||
| Risk [Text Block] |
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| VistaShares Defense Supercycle ETF | Foreign Securities Risk [Member] | ||||
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| Risk [Text Block] | Foreign Securities Risk. Investments in securities or other instruments of non-U.S. issuers involve certain risks not involved in domestic investments and may experience more rapid and extreme changes in value than investments in securities of U.S. companies. Financial markets in foreign countries often are not as developed, efficient, or liquid as financial markets in the United States, and therefore, the prices of non-U.S. securities and instruments can be more volatile. In addition, the Fund will be subject to risks associated with adverse political and economic developments in foreign countries, which may include the imposition of economic sanctions. Generally, there is less readily available and reliable information about non-U.S. issuers due to less rigorous disclosure or accounting standards and regulatory practices. Investments in foreign companies securities, including investments via depositary receipts, are subject to special risks, including the following:
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| VistaShares Defense Supercycle ETF | Currency Exchange Rate Risk [Member] | ||||
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| VistaShares Defense Supercycle ETF | Depositary Receipt Risk [Member] | ||||
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| VistaShares Defense Supercycle ETF | Developed Markets Risk [Member] | ||||
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| VistaShares Defense Supercycle ETF | Emerging Markets Risk [Member] | ||||
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| VistaShares Defense Supercycle ETF | Index-Linked Strategy Risk [Member] | ||||
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| Risk [Text Block] | Index-Linked Strategy Risk. The Fund’s strategy, though not passively replicating an Index, is linked to an Index maintained by the Index Provider that exercises complete control over the Index. The Index Provider may delay or add a rebalance date, which may adversely impact the performance of the Fund and its correlation to the Index. In addition, there is no guarantee that the methodology used by the Index Provider to identify constituents for the Index will achieve its intended result or positive performance. Errors in Index data, Index computations or the construction of the Index in accordance with its methodology may occur from time to time and may not be identified and/or corrected for a period of time or at all, which may have an adverse impact on the Fund.
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| VistaShares Defense Supercycle ETF | Models and Data Risk [Member] | ||||
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| Risk [Text Block] | Models and Data Risk. The composition of the Index is heavily dependent on proprietary quantitative models as well as information and data supplied by third parties (“Models and Data”). When Models and Data prove to be incorrect or incomplete, any decisions made in reliance thereon may lead to the inclusion or exclusion of securities from the Index universe that would have been excluded or included had the Models and Data been correct and complete. If the composition of the Index reflects such errors, the Fund’s portfolio can be expected to also reflect the errors.
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| VistaShares Defense Supercycle ETF | Active Management Risk [Member] | ||||
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| Risk [Text Block] | Active Management Risk. The Sub-Adviser will actively monitor the Fund’s holdings, and may not meet its investment objective based on the Sub-Adviser’s success or failure to implement investment strategies for the Fund. In addition, while the Fund seeks to achieve returns similar to those of the Index, there may be periods of time where the Fund’s holdings, and therefore its performance, deviate significantly from the holdings and performance of the Index.
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| VistaShares Defense Supercycle ETF | Tracking Error Risk [Member] | ||||
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| Risk [Text Block] | Tracking Error Risk. The performance of the Fund and its Index may differ from each other for a variety of reasons. For example, the Fund incurs operating expenses and portfolio transaction costs not incurred by the Index. In addition, the Fund may not be fully invested in the securities of the Index at all times or may hold securities not included in the Index.
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| VistaShares Defense Supercycle ETF | Unrelated Business Risk [Member] | ||||
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| VistaShares Defense Supercycle ETF | Market Capitalization Risk [Member] | ||||
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| Risk [Text Block] | Market Capitalization Risk.
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| VistaShares Defense Supercycle 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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| VistaShares Defense Supercycle ETF | Mid-Capitalization Investing [Member] | ||||
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| Risk [Text Block] | ● Mid-Capitalization Investing. The securities of mid-capitalization companies may be more vulnerable to adverse issuer, market, political, or economic developments than securities of large-capitalization companies. The securities of mid-capitalization companies generally trade in lower volumes and are subject to greater and more unpredictable price changes than large-capitalization stocks or the stock market as a whole.
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| VistaShares Defense Supercycle ETF | Small-Capitalization Investing [Member] | ||||
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| Risk [Text Block] | ● Small-Capitalization Investing. The securities of small-capitalization companies may be more vulnerable to adverse issuer, market, political, or economic developments than securities of large- or mid-capitalization companies. The securities of small-capitalization companies generally trade in lower volumes and are subject to greater and more unpredictable price changes than large- or mid-capitalization stocks or the stock market as a whole. There is typically less publicly available information concerning smaller-capitalization companies than for larger, more established companies.
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| VistaShares Defense Supercycle ETF | ETF Risks [Member] | ||||
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| Risk [Text Block] | ETF Risks.
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| VistaShares Defense Supercycle ETF | Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk [Member] | ||||
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| VistaShares Defense Supercycle ETF | Costs of Buying or Selling Shares [Member] | ||||
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| VistaShares Defense Supercycle ETF | Shares May Trade at Prices Other Than NAV [Member] | ||||
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| VistaShares Defense Supercycle ETF | Trading [Member] | ||||
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| VistaShares Defense Supercycle ETF | IPO Risk [Member] | ||||
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| Risk [Text Block] | IPO Risk. The Fund may purchase securities of companies that are offered in an IPO. The risk exists that the market value of IPO shares will fluctuate considerably due to factors such as the absence of a prior public market, unseasoned trading, the small number of shares available for trading and limited information about the issuer. When the Fund’s asset base is small, a significant portion of the Fund’s performance could be attributable to investments in IPOs, because such investments would have a magnified impact on the Fund.
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| VistaShares Defense Supercycle 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 an extensive track record or history on which to base their investment decisions.
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| VistaShares Defense Supercycle ETF | Newer Sub-Adviser Risk [Member] | ||||
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| Risk [Text Block] | Newer Sub-Adviser Risk. VistaShares is a recently formed entity and has limited experience with managing an exchange-traded fund, which may limit the Sub-Adviser’s effectiveness.
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| VistaShares Defense Supercycle 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 the 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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| VistaShares Defense Supercycle ETF | Defense Investing Risks [Member] | ||||
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| Risk [Text Block] | Defense Investing Risks. Companies operating in the cybersecurity, defense, military technology, aerospace, and advanced autonomous defense sectors may be adversely affected by government spending priorities, budgetary constraints, and changes in defense procurement policies. These industries are heavily dependent on government contracts that may be modified, curtailed, or terminated, sometimes with little notice. Companies in these sectors are also subject to evolving geopolitical conditions, including increased global tensions, military conflicts, export controls, sanctions, and restrictions on the sale or transfer of sensitive technologies. Cybersecurity companies may experience rapid technological change, intense competition, vulnerabilities to security breaches, and reputational harm arising from cyber incidents. Aerospace and defense technology firms face high research and development costs, long production cycles, supply-chain disruptions, and regulatory oversight relating to national security, classified programs, and export-controlled materials. Providers of autonomous defense systems, robotics, drones, and AI-enabled defense technologies may face heightened regulatory scrutiny, ethical and safety-related restrictions, and uncertain adoption rates by defense customers. These industries can also be significantly impacted by political developments, changes in international alliances, and fluctuations in global defense spending. As a result, companies operating in these segments may experience greater volatility and may be more susceptible to adverse economic, regulatory, or geopolitical events than the broader equity market.
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| VistaShares Defense Supercycle 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. | |||
| VistaShares Defense Supercycle 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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