v3.26.3
Investment Risks
Sep. 30, 2026
ARS Core Equity Portfolio ETF | Investment Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Investment Risk. When you sell your Shares, they could be worth less than what you paid for them. The Fund could lose money due to short-term market movements and over longer periods during market downturns. Securities may decline in value due to factors affecting securities markets generally or particular asset classes or industries represented in the markets. The value of a security may decline due to general market conditions, economic trends or events that are not specifically related to the issuer of the security. Geopolitical and other risks, including war, terrorism, trade disputes, political or economic dysfunction within some nations, public health crises, and environmental disasters such as earthquakes, fire, and floods, may add to instability in world economies and volatility in markets generally. Changes in trade policies and international trade agreements could affect the economies of many countries in unpredictable ways. The value of a security may also decline due to factors that affect a particular industry or group of industries. During a general downturn in the securities markets, multiple asset classes may be negatively affected. Therefore, you may lose money by investing in the Fund.
ARS Core Equity Portfolio ETF | Equity Investing Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Equity Investing Risk. An investment in the Fund involves risks similar to those of investing in any fund holding equity securities, such as market fluctuations, changes in interest rates and perceived trends in stock prices. The values of equity securities could decline generally or could underperform other investments. In addition, securities may decline in value due to factors affecting a specific issuer, market or securities markets generally.
ARS Core Equity Portfolio ETF | Large-Capitalization Companies Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Large-Capitalization Companies Risk. Large-capitalization companies may trail the returns of the overall stock market. Large-capitalization stocks tend to go through cycles of doing better - or worse - than the stock market in general. These periods have, in the past, lasted for as long as several years. Larger, more established companies may be slow to respond to challenges and may grow more slowly than smaller companies.
ARS Core Equity Portfolio ETF | High Dividend Style Risk Member  
Prospectus [Line Items]  
Risk [Text Block] High Dividend Style Risk. While the Fund may hold securities of companies that have historically paid a high dividend yield or the Sub-Adviser determines appears likely to pay a high dividend in the future, those companies may never pay, reduce, or discontinue their dividends, thus reducing the yield of the Fund. Low priced securities in the Fund may be more susceptible to these risks. Past dividend payments are not a guarantee of future dividend payments. Also, the market return of high dividend yield securities, in certain market conditions, may be worse than the market return of other investment strategies or the overall stock market.
ARS Core Equity Portfolio ETF | Growth Investing Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Growth Investing Risk. The Fund invests in growth securities, which may be more volatile than other types of investments, may perform differently than the market as a whole and may underperform when compared to securities with different investment
parameters. Under certain market conditions, growth securities have performed better during the later stages of economic recovery (although there is no guarantee that they will continue to do so). Therefore, growth securities may go in and out of favor over time.
ARS Core Equity Portfolio ETF | Value-Style Investing Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Value Style Investing Risk. A value stock may not increase in price if other investors fail to recognize the company’s value and bid up the price, or the markets favor faster-growing companies. Cyclical stocks in which the Fund may invest tend to lose value more quickly in periods of anticipated economic downturns than non-cyclical stocks. Companies that may be considered out of favor, particularly companies emerging from bankruptcy, may tend to lose value more quickly in periods of anticipated economic downturns, may have difficulty retaining customers and suppliers and, during economic downturns, may have difficulty paying their debt obligations or finding additional financing.
ARS Core Equity Portfolio ETF | Sector Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Sector Risk. To the extent the Fund invests more heavily in particular sectors of the economy, its performance will be especially sensitive to developments that significantly affect those sectors and the performance of the Fund could be negatively impacted by events affecting such sectors. Individual sectors or sub-sectors may be more volatile, and may perform differently, than the broader market.
•Information Technology Sector Risk. Market or economic factors impacting technology companies and companies that rely heavily on technological advances could have a significant effect on the value of the Fund’s investments. The value of stocks of technology companies and companies that rely heavily on technology is particularly vulnerable to rapid changes in technology product cycles, rapid product obsolescence, government regulation and competition, both domestically and internationally, including competition from foreign competitors with lower production costs. Stocks of technology companies and companies that rely heavily on technology, especially those of smaller, less-seasoned companies, tend to be more volatile than the overall market. Technology companies are heavily dependent on patent and intellectual property rights, the loss or impairment of which may adversely affect profitability.
ARS Core Equity Portfolio ETF | Sector Risk, Information Technology Sector Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Information Technology Sector Risk. Market or economic factors impacting technology companies and companies that rely heavily on technological advances could have a significant effect on the value of the Fund’s investments. The value of stocks of technology companies and companies that rely heavily on technology is particularly vulnerable to rapid changes in technology product cycles, rapid product obsolescence, government regulation and competition, both domestically and internationally, including competition from foreign competitors with lower production costs. Stocks of technology companies and companies that rely heavily on technology, especially those of smaller, less-seasoned companies, tend to be more volatile than the overall market. Technology companies are heavily dependent on patent and intellectual property rights, the loss or impairment of which may adversely affect profitability.
ARS Core Equity Portfolio ETF | Management Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Management Risk. The Fund is actively managed and may not meet its investment objective based on the Adviser’s or Sub-Adviser’s success or failure to implement investment strategies for the Fund.
ARS Core Equity Portfolio ETF | Depositary Receipts Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Depositary Receipts Risk. Depositary receipts are generally subject to the same risks as the foreign securities that they evidence or into which they may be converted. In addition, depositary receipts may not track the price of or may be less liquid than their underlying foreign securities, and the value of depositary receipts may change materially at times when the U.S. markets are not open for trading.
ARS Core Equity Portfolio ETF | Foreign Investment Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Foreign Investment Risk. Returns on investments in foreign securities could be more volatile than, or trail the returns on, investments in U.S. securities. Investments in or exposures to foreign securities are subject to special risks, including risks associated with foreign securities generally, including differences in information available about issuers of securities and investor protection standards applicable in other jurisdictions; capital controls risks, including the risk of a foreign jurisdiction imposing restrictions on the ability to repatriate or transfer currency or other assets; currency risks; political, diplomatic and economic risks; regulatory risks; and foreign market and trading risks, including the costs of trading and risks of settlement in foreign jurisdictions.
ARS Core Equity Portfolio ETF | Small Number Of Holdings Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Small Number of Holdings Risk. The Fund’s portfolio may, at times, contain fewer securities than the portfolios of other funds, which increases the risk that the value of the Fund could go down because of the poor performance of one or a few investments. Therefore, the Fund’s performance may be more vulnerable to changes in the market value of a single issuer and more susceptible to risks associated with a single economic, political, or regulatory occurrence than a fund that has a higher number of holdings. An individual security may be more volatile, and may perform differently, than the market as a whole.
ARS Core Equity Portfolio ETF | Risk Of Investing In Other ETFs Member  
Prospectus [Line Items]  
Risk [Text Block]
Risk of Investing in Other ETFs. Because the Fund may invest in other ETFs, the Fund’s investment performance is impacted by the investment performance of the selected underlying ETFs. An investment in the Fund is subject to the risks associated with the ETFs that then-currently comprise the Fund’s portfolio. At times, certain of the segments of the market represented by the Fund’s underlying ETFs may be out of favor and underperform other segments. The Fund will indirectly pay a proportional share of the expenses of the underlying ETFs in which it invests (including operating expenses and management fees), which are identified in the fee table above as “Acquired Fund Fees and Expenses.”
ARS Core Equity Portfolio ETF | ETF Risks Member  
Prospectus [Line Items]  
Risk [Text Block]
ETF Risks.
•Authorized Participants, Market Makers and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that may act as Authorized Participants (“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, bid-ask spreads may widen and 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.
•Premium-Discount Risk. The Shares may trade above or below their net asset value (“NAV”). The market prices of Shares will generally fluctuate in accordance with changes in NAV as well as the relative supply of, and demand for, Shares on The Nasdaq Stock Market, LLC (the “Exchange”) or other securities exchanges. The trading price of Shares
may deviate significantly from NAV during periods of market volatility or limited trading activity in Shares. In addition, you may incur the cost of the “spread,” that is, any difference between the bid price and the ask price of the Shares. This risk is heightened in times of market volatility or periods of steep market declines.
•Cost of Trading Risk. Investors buying or selling Shares in the secondary market will pay brokerage commissions or other charges imposed by brokers as determined by that broker. Brokerage commissions are often a fixed amount and may be a significant proportional cost for investors seeking to buy or sell relatively small amounts of Shares.
•Trading Risk. Although the Shares are listed on the Exchange, there can be no assurance that an active or liquid trading market for them will develop or be maintained. In addition, trading in Shares on the Exchange may be halted. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of its underlying portfolio holdings, which can be less liquid than Shares, potentially causing the market price of Shares to deviate from its NAV. The spread varies over time for Shares of the Fund based on the Fund’s trading volume and market liquidity and is generally lower if the Fund has high trading volume and market liquidity, and higher if the Fund has little trading volume and market liquidity (which is often the case for funds that are newly launched or small in size).
ARS Core Equity Portfolio ETF | ETF Risks, 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 may act as Authorized Participants (“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, bid-ask spreads may widen and 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.
ARS Core Equity Portfolio ETF | ETF Risks, Premium-Discount Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Premium-Discount Risk. The Shares may trade above or below their net asset value (“NAV”). The market prices of Shares will generally fluctuate in accordance with changes in NAV as well as the relative supply of, and demand for, Shares on The Nasdaq Stock Market, LLC (the “Exchange”) or other securities exchanges. The trading price of Shares
may deviate significantly from NAV during periods of market volatility or limited trading activity in Shares. In addition, you may incur the cost of the “spread,” that is, any difference between the bid price and the ask price of the Shares. This risk is heightened in times of market volatility or periods of steep market declines.
ARS Core Equity Portfolio ETF | ETF Risks, Cost Of Trading Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Cost of Trading Risk. Investors buying or selling Shares in the secondary market will pay brokerage commissions or other charges imposed by brokers as determined by that broker. Brokerage commissions are often a fixed amount and may be a significant proportional cost for investors seeking to buy or sell relatively small amounts of Shares.
ARS Core Equity Portfolio ETF | ETF Risks, Trading Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Trading Risk. Although the Shares are listed on the Exchange, there can be no assurance that an active or liquid trading market for them will develop or be maintained. In addition, trading in Shares on the Exchange may be halted. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of its underlying portfolio holdings, which can be less liquid than Shares, potentially causing the market price of Shares to deviate from its NAV. The spread varies over time for Shares of the Fund based on the Fund’s trading volume and market liquidity and is generally lower if the Fund has high trading volume and market liquidity, and higher if the Fund has little trading volume and market liquidity (which is often the case for funds that are newly launched or small in size).
ARS Core Equity Portfolio ETF | New Fund Risk Member  
Prospectus [Line Items]  
Risk [Text Block] New Fund Risk. The Fund is a recently organized investment company with limited operating history. As a result, prospective investors have limited track record or history on which to base their investment decision. There can be no assurance that the Fund will grow to or maintain an economically viable size.
ARS Core Equity Portfolio ETF | Risk Lose Money [Member]  
Prospectus [Line Items]  
Risk [Text Block] An investor may lose money by investing in the Fund.
ARS Core Equity Portfolio ETF | Risk Not Insured Depository Institution [Member]  
Prospectus [Line Items]  
Risk [Text Block] An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any government agency.
ARS Core Equity Portfolio ETF | Risk Nondiversified Status [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Non-Diversification Risk. Because the Fund is non-diversified, it may be more sensitive to economic, business, political or other changes affecting individual issuers or investments than a diversified fund, which may result in greater fluctuation in the value of the Shares and greater risk of loss.
ARS Focused Opportunities Strategy ETF | Investment Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Investment Risk. When you sell your Shares, they could be worth less than what you paid for them. The Fund could lose money due to short-term market movements and over longer periods during market downturns. Securities may decline in value due to factors affecting securities markets generally or particular asset classes or industries represented in the markets. The value of a security may decline due to general market conditions, economic trends or events that are not specifically related to the issuer of the security. Geopolitical and other risks, including war, terrorism, trade disputes, political or economic dysfunction within some nations, public health crises, and environmental disasters such as earthquakes, fire, and floods, may add to instability in world economies and volatility in markets generally. Changes in trade policies and international trade agreements could affect the economies of many countries in unpredictable ways. The value of a security may also decline due to factors that affect a particular industry or group of industries. During a general downturn in the securities markets, multiple asset classes may be negatively affected. Therefore, you may lose money by investing in the Fund.
ARS Focused Opportunities Strategy ETF | Equity Investing Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Equity Investing Risk. An investment in the Fund involves risks similar to those of investing in any fund holding equity securities, such as market fluctuations, changes in interest rates and perceived trends in stock prices. The values of equity securities could decline generally or could underperform other investments. In addition, securities may decline in value due to factors affecting a specific issuer, market or securities markets generally.
ARS Focused Opportunities Strategy ETF | Large-Capitalization Companies Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Large-Capitalization Companies Risk. Large-capitalization companies may trail the returns of the overall stock market. Large-capitalization stocks tend to go through cycles of doing better - or worse - than the stock market in general. These periods have, in the past, lasted for as long as several years. Larger, more established companies may be slow to respond to challenges and may grow more slowly than smaller companies.
ARS Focused Opportunities Strategy ETF | Growth Investing Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Growth Investing Risk. The Fund invests in growth securities, which may be more volatile than other types of investments, may perform differently than the market as a whole and may underperform when compared to securities with different investment parameters. Under certain market conditions, growth securities have performed better during the later stages of economic recovery (although there is no guarantee that they will continue to do so). Therefore, growth securities may go in and out of favor over time.
ARS Focused Opportunities Strategy ETF | Value-Style Investing Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Value Style Investing Risk. A value stock may not increase in price if other investors fail to recognize the company’s value and bid up the price, or the markets favor faster-growing companies. Cyclical stocks in which the Fund may invest tend to lose value more quickly in periods of anticipated economic downturns than non-cyclical stocks. Companies that may be considered out of
favor, particularly companies emerging from bankruptcy, may tend to lose value more quickly in periods of anticipated economic downturns, may have difficulty retaining customers and suppliers and, during economic downturns, may have difficulty paying their debt obligations or finding additional financing.
ARS Focused Opportunities Strategy ETF | Sector Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Sector Risk. To the extent the Fund invests more heavily in particular sectors of the economy, its performance will be especially sensitive to developments that significantly affect those sectors and the performance of the Fund could be negatively impacted by events affecting such sectors. Individual sectors or sub-sectors may be more volatile, and may perform differently, than the broader market.
•Information Technology Sector Risk. Market or economic factors impacting technology companies and companies that rely heavily on technological advances could have a significant effect on the value of the Fund’s investments. The value of stocks of technology companies and companies that rely heavily on technology is particularly vulnerable to rapid changes in technology product cycles, rapid product obsolescence, government regulation and competition, both domestically and internationally, including competition from foreign competitors with lower production costs. Stocks of technology companies and companies that rely heavily on technology, especially those of smaller, less-seasoned companies, tend to be more volatile than the overall market. Technology companies are heavily dependent on patent and intellectual property rights, the loss or impairment of which may adversely affect profitability.
•Industrials Sector Risk. The value of securities issued by companies in the industrials sector may be affected by supply and demand both for their specific products or services and for industrials sector products in general. The products of manufacturing companies may face obsolescence due to rapid technological developments and frequent new product introduction.
ARS Focused Opportunities Strategy ETF | Sector Risk, Information Technology Sector Risk Member  
Prospectus [Line Items]  
Risk [Text Block] •Information Technology Sector Risk. Market or economic factors impacting technology companies and companies that rely heavily on technological advances could have a significant effect on the value of the Fund’s investments. The value of stocks of technology companies and companies that rely heavily on technology is particularly vulnerable to rapid changes in technology product cycles, rapid product obsolescence, government regulation and competition, both domestically and internationally, including competition from foreign competitors with lower production costs. Stocks of technology companies and companies that rely heavily on technology, especially those of smaller, less-seasoned companies, tend to be more volatile than the overall market. Technology companies are heavily dependent on patent and intellectual property rights, the loss or impairment of which may adversely affect profitability.
ARS Focused Opportunities Strategy ETF | Management Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Management Risk. The Fund is actively managed and may not meet its investment objective based on the Adviser’s or Sub-Adviser’s success or failure to implement investment strategies for the Fund.
ARS Focused Opportunities Strategy ETF | Depositary Receipts Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Depositary Receipts Risk. Depositary receipts are generally subject to the same risks as the foreign securities that they evidence or into which they may be converted. In addition, depositary receipts may not track the price of or may be less liquid than their underlying foreign securities, and the value of depositary receipts may change materially at times when the U.S. markets are not open for trading.
ARS Focused Opportunities Strategy ETF | Foreign Investment Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Foreign Investment Risk. Returns on investments in foreign securities could be more volatile than, or trail the returns on, investments in U.S. securities. Investments in or exposures to foreign securities are subject to special risks, including risks associated with foreign securities generally, including differences in information available about issuers of securities and investor protection standards applicable in other jurisdictions; capital controls risks, including the risk of a foreign jurisdiction imposing restrictions on the ability to repatriate or transfer currency or other assets; currency risks; political, diplomatic and economic risks; regulatory risks; and foreign market and trading risks, including the costs of trading and risks of settlement in foreign jurisdictions.
ARS Focused Opportunities Strategy ETF | Small Number Of Holdings Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Small Number of Holdings Risk. The Fund’s portfolio may, at times, contain fewer securities than the portfolios of other funds, which increases the risk that the value of the Fund could go down because of the poor performance of one or a few investments. Therefore, the Fund’s performance may be more vulnerable to changes in the market value of a single issuer and more susceptible to risks associated with a single economic, political, or regulatory occurrence than a fund that has a higher number of holdings. An individual security may be more volatile, and may perform differently, than the market as a whole.
ARS Focused Opportunities Strategy ETF | Risk Of Investing In Other ETFs Member  
Prospectus [Line Items]  
Risk [Text Block]
Risk of Investing in Other ETFs. Because the Fund may invest in other ETFs, the Fund’s investment performance is impacted by the investment performance of the selected underlying ETFs. An investment in the Fund is subject to the risks associated with the ETFs that then-currently comprise the Fund’s portfolio. At times, certain of the segments of the market represented by the Fund’s underlying ETFs may be out of favor and underperform other segments. The Fund will indirectly pay a proportional share of the expenses of the underlying ETFs in which it invests (including operating expenses and management fees), which are identified in the fee table above as “Acquired Fund Fees and Expenses.”
ARS Focused Opportunities Strategy ETF | ETF Risks Member  
Prospectus [Line Items]  
Risk [Text Block]
ETF Risks.
•Authorized Participants, Market Makers and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that may act as Authorized Participants (“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, bid-ask spreads may widen and 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.
•Premium-Discount Risk. The Shares may trade above or below their net asset value (“NAV”). The market prices of Shares will generally fluctuate in accordance with changes in NAV as well as the relative supply of, and demand for, Shares on The Nasdaq Stock Market, LLC (the “Exchange”) or other securities exchanges. The trading price of Shares may deviate significantly from NAV during periods of market volatility or limited trading activity in Shares. In addition,
you may incur the cost of the “spread,” that is, any difference between the bid price and the ask price of the Shares. This risk is heightened in times of market volatility or periods of steep market declines.
•Cost of Trading Risk. Investors buying or selling Shares in the secondary market will pay brokerage commissions or other charges imposed by brokers as determined by that broker. Brokerage commissions are often a fixed amount and may be a significant proportional cost for investors seeking to buy or sell relatively small amounts of Shares.
•Trading Risk. Although the Shares are listed on the Exchange, there can be no assurance that an active or liquid trading market for them will develop or be maintained. In addition, trading in Shares on the Exchange may be halted. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of its underlying portfolio holdings, which can be less liquid than Shares, potentially causing the market price of Shares to deviate from its NAV. The spread varies over time for Shares of the Fund based on the Fund’s trading volume and market liquidity and is generally lower if the Fund has high trading volume and market liquidity, and higher if the Fund has little trading volume and market liquidity (which is often the case for funds that are newly launched or small in size).
ARS Focused Opportunities Strategy ETF | ETF Risks, 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 may act as Authorized Participants (“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, bid-ask spreads may widen and 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.
ARS Focused Opportunities Strategy ETF | ETF Risks, Premium-Discount Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Premium-Discount Risk. The Shares may trade above or below their net asset value (“NAV”). The market prices of Shares will generally fluctuate in accordance with changes in NAV as well as the relative supply of, and demand for, Shares on The Nasdaq Stock Market, LLC (the “Exchange”) or other securities exchanges. The trading price of Shares may deviate significantly from NAV during periods of market volatility or limited trading activity in Shares. In addition,
you may incur the cost of the “spread,” that is, any difference between the bid price and the ask price of the Shares. This risk is heightened in times of market volatility or periods of steep market declines.
ARS Focused Opportunities Strategy ETF | ETF Risks, Cost Of Trading Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Cost of Trading Risk. Investors buying or selling Shares in the secondary market will pay brokerage commissions or other charges imposed by brokers as determined by that broker. Brokerage commissions are often a fixed amount and may be a significant proportional cost for investors seeking to buy or sell relatively small amounts of Shares.
ARS Focused Opportunities Strategy ETF | ETF Risks, Trading Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Trading Risk. Although the Shares are listed on the Exchange, there can be no assurance that an active or liquid trading market for them will develop or be maintained. In addition, trading in Shares on the Exchange may be halted. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of its underlying portfolio holdings, which can be less liquid than Shares, potentially causing the market price of Shares to deviate from its NAV. The spread varies over time for Shares of the Fund based on the Fund’s trading volume and market liquidity and is generally lower if the Fund has high trading volume and market liquidity, and higher if the Fund has little trading volume and market liquidity (which is often the case for funds that are newly launched or small in size).
ARS Focused Opportunities Strategy ETF | New Fund Risk Member  
Prospectus [Line Items]  
Risk [Text Block] New Fund Risk. The Fund is a recently organized investment company with limited operating history. As a result, prospective investors have limited track record or history on which to base their investment decision. There can be no assurance that the Fund will grow to or maintain an economically viable size.
ARS Focused Opportunities Strategy ETF | Mid-Capitalization Companies Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Mid-Capitalization Companies Risk. Investing in securities of mid-capitalization companies involves greater risk than customarily is associated with investing in larger, more established companies. These companies’ securities may be more volatile and less liquid than those of more established companies. Often mid-capitalization companies and the industries in which they focus are still evolving and, as a result, they may be more sensitive to changing market conditions.
ARS Focused Opportunities Strategy ETF | Small-Capitalization Companies Risk Member  
Prospectus [Line Items]  
Risk [Text Block]
Small-Capitalization Companies Risk. Investing in securities of small-capitalization companies involves greater risk than customarily is associated with investing in larger, more established companies. Small-capitalization companies often have less predictable earnings, more limited product lines, markets, distribution channels and financial resources, and the management of such companies may be dependent upon one or a small number of individuals. Price movements of small-capitalization companies may be more volatile than mid-capitalization and large-capitalization companies.
ARS Focused Opportunities Strategy ETF | Sector Risk, Industrials Sector Risk Member  
Prospectus [Line Items]  
Risk [Text Block] Industrials Sector Risk. The value of securities issued by companies in the industrials sector may be affected by supply and demand both for their specific products or services and for industrials sector products in general. The products of manufacturing companies may face obsolescence due to rapid technological developments and frequent new product introduction.
ARS Focused Opportunities Strategy ETF | Risk Lose Money [Member]  
Prospectus [Line Items]  
Risk [Text Block] An investor may lose money by investing in the Fund.
ARS Focused Opportunities Strategy ETF | Risk Not Insured Depository Institution [Member]  
Prospectus [Line Items]  
Risk [Text Block] An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any government agency.
ARS Focused Opportunities Strategy ETF | Risk Nondiversified Status [Member]  
Prospectus [Line Items]  
Risk [Text Block] Non-Diversification Risk. Because the Fund is non-diversified, it may be more sensitive to economic, business, political or other changes affecting individual issuers or investments than a diversified fund, which may result in greater fluctuation in the value of the Shares and greater risk of loss.