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Leatherback Long/Short Absolute Return ETF  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Leatherback Long/Short Absolute Return ETF
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The Leatherback Long/Short Absolute Return ETF (the “Fund” or the “Absolute Return ETF”) seeks absolute return. The Fund has not yet commenced operations.
Expense [Heading] rr_ExpenseHeading Fees and Expenses of the Fund
Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock This table describes the fees and expenses that you may pay if you buy, hold, and sell shares of the Fund (“Shares”). You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table and Example below.
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Shares are held in a taxable account. These costs, which are not reflected in total annual fund operating expenses or in the expense example above, affect the Fund’s performance. Because the Fund has not commenced operations as of the date of this Prospectus, portfolio turnover information is not yet available.
Other Expenses, New Fund, Based on Estimates [Text] rr_OtherExpensesNewFundBasedOnEstimates Estimated for the current fiscal year
Expense Example [Heading] rr_ExpenseExampleHeading Expense Example
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your Shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. The Example does not take into account brokerage commissions that you may pay on your purchases and sales of Shares.
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
The Fund is an actively-managed exchange-traded fund (“ETF”) that seeks to achieve its investment objective by purchasing long positions in securities believed to be undervalued and taking short positions in securities expected to decline in price. The Fund will generally have net exposure of 0-80% long.
Investment decisions for the Fund are made by Leatherback Asset Management, LLC (“Leatherback” or the “Sub-Adviser”), the Fund’s sub-adviser. Leatherback identifies securities to purchase long for the Fund primarily through quantitative and fundamental analyses of U.S.-listed large-, mid-, or small-capitalization companies. Leatherback typically looks to purchase securities of companies with high margins and a high return on invested capital that operate in industries Leatherback expects to outperform the broader market over a several year period. As part of its analysis, Leatherback considers whether a security is expected to pay a dividend and the ability of the issuer to grow that dividend over time, although the Fund may own securities that do not pay any dividend. The Fund may also invest in companies with unique opportunities such as having been spun-off from a larger company or having emerged from bankruptcy, or in securities that Leatherback believes are mispriced based on the security’s place in a company’s capital structure.
The Fund’s long positions are generally expected to be comprised of equity securities or depositary receipts, although long positions may also include investment-grade corporate bonds and convertible bonds. The Fund’s equity securities may include common stocks, preferred stocks, real estate investment trusts (“REITs”), and closed-end funds.
Leatherback seeks to identify short positions for the Fund based on identifying idiosyncratic ideas that suggest a security’s price will decline. For example, Leatherback may look for financial or accounting anomalies in a company’s financial statements, may seek to identify short-term fads leading to overvalued securities, or look for companies with a poor governance record. Securities that the Fund sells short are generally expected to have lower margins and be in industries facing significant challenges for growth. The Fund
may also sell short equity securities or other ETFs that are sector-, market capitalization-, or geography-focused, or those that target specific drivers of return or risk, such as momentum, low volatility or value (sometimes referred to as “factor-based ETFs”), to take advantage of headwinds perceived by Leatherback for those investments.
A short sale is a transaction in which the Fund sells a security it does not own, typically in anticipation of a decline in the market price of that security. To effect a short sale, the Fund arranges through a broker to borrow the security it does not own to be delivered to a buyer of such security. In borrowing the security to be delivered to the buyer, the Fund will become obligated to replace the security borrowed at the time of replacement, regardless of the market price at that time. A short sale results in a gain when the price of the securities sold short declines between the date of the short sale and the date on which a security is purchased to replace the borrowed security. Conversely, a short sale will result in a loss if the price of the security sold short increases. When the Fund makes a short sale, the broker effecting the short sale typically holds the proceeds as part of the collateral securing the Fund’s obligation to cover the short position.
In addition to the strategies described above, the Fund may also purchase put options on equity securities or ETFs.
The Fund is considered to be non-diversified under the Investment Company Act of 1940, as amended (the “1940 Act”), which means that it may invest more of its assets in the securities of a single issuer or a smaller number of issuers than if it were a diversified fund.
Risk [Heading] rr_RiskHeading Principal Risks of Investing in the Fund
Risk Narrative [Text Block] rr_RiskNarrativeTextBlock
The principal risks of investing in the Fund are summarized below. The principal risks are presented in alphabetical order to facilitate finding particular risks and comparing them with those of other funds. Each risk summarized below is considered a “principal risk” of investing in the Fund, regardless of the order in which the risks appear. As with any investment, there is a risk that you could lose all or a portion of your investment in the Fund. Some or all of these risks may adversely affect the Fund’s net asset value per share (“NAV”), trading price, yield, total return and/or ability to meet its investment objective. For more information about the risks of investing in the Fund, see the section in the Fund’s Prospectus titled “Additional Information About the Funds—Principal Risks of Investing in Each Fund.”
Associated Risks of Short Selling. The Fund may make short sales of securities, which involves selling a security it does not own in anticipation that the price of the security will decline. Short sales may involve substantial risk and leverage. Short sales expose the Fund to the risk that it will be required to buy (“cover”) the security sold short when the security has appreciated in value or is unavailable, thus resulting in a loss to the Fund. Short sales also involve the risk that losses may exceed the amount invested and may be unlimited.
Closed-End Fund Risk. Shares of closed-end funds frequently trade at a price per share that is less than the net asset value per share. There can be no assurance that the market discount on shares of any closed-end fund purchased by the Fund will ever decrease or that when the Fund seeks to sell shares of a closed-end fund it can receive the net asset value of those shares.
Convertible Securities Risk. Convertible securities rank senior to the issuer's common stock, but may be subordinate to senior debt obligations. In part, the total return for a convertible security may depend upon the performance of the underlying stock into which it can be converted. Synthetic convertibles may respond differently to market fluctuations than traditional convertible securities. They are also subject to counterparty risk.
Depositary Receipt Risk. Depositary receipts involve risks similar to those associated with investments in foreign securities and give rise to certain additional risks. Depositary receipts listed on U.S. or foreign exchanges are issued by banks or trust companies, and entitle the holder to all dividends and capital gains that are paid out on the underlying foreign shares (“Underlying Shares”). When the Fund invests in depositary receipts as a substitute for an investment directly in the Underlying Shares, the Fund is exposed to the risk that the depositary receipts may not provide a return that corresponds precisely with that of the Underlying Shares.
Equity Market Risk. 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. The Fund will invest in common stocks. 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.
ETF Risk.
◦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.
◦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., TBA transactions, short positions, derivative instruments, and bonds that cannot be broken up beyond certain minimum sizes needed for transfer and settlement). 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.
◦Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid-ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.
◦Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant.
◦Trading. Although Shares are listed on a national securities exchange, such as NYSE Arca, Inc. (the “Exchange”), and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that 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.
Fixed Income Risk. The value of the Fund’s investments in fixed income securities will fluctuate with changes in interest rates. Typically, a rise in interest rates causes a decline in the value of fixed income securities owned indirectly by the Fund. On the other hand, if rates fall, the value of the fixed income securities generally increases. The Fund may be subject to a greater risk of rising interest rates due to the current period of historically low rates and the effect of potential government fiscal policy initiatives and resulting market reaction to those initiatives. In general, the market price of fixed income securities with longer maturities will increase or decrease more in response to changes in interest rates than shorter-term securities.
General 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), interest rates, global demand for particular products or resources, natural disasters or events, pandemic diseases, terrorism, regulatory events, and government controls.
Management Risk. The Fund is actively-managed and may not meet its investment objective based on the Sub-Adviser’s success or failure to implement investment strategies for the Fund.
Market Capitalization Risk.
◦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.
◦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.
◦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.
New Adviser Risk. Leatherback is a newly registered investment adviser and has not previously served as an adviser or sub-adviser to an investment company. As a result, there is no long-term track record against which an investor may judge Leatherback and it is possible Leatherback may not achieve the Fund’s intended investment objective.
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 decision.
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.
Options Risk. Options enable the Fund to purchase exposure that is significantly greater than the premium paid. Consequently, the value of such options can be volatile, and a small investment in options can have a large impact on the performance of the Fund. The Fund risks losing all or part of the cash paid (premium) for purchasing options. Even a small decline in the value of a reference asset underlying call options or a small increase in the value of a reference asset underlying put options can result in the entire investment in such options being lost. Additionally, the value of the option may be lost if the Sub-Adviser fails to exercise such option at or prior to its expiration.
Other Investment Companies Risk. The Fund will incur higher and duplicative expenses when it invests in other investment companies, such as ETFs and closed-end funds. By investing in another investment company, the Fund becomes a shareholder of that investment company and bears its proportionate share of the fees and expenses of the other investment company. There is also the risk that the Fund may suffer losses due to the investment practices of the underlying funds as the Fund will be subject to substantially the same risks as those associated with the direct ownership of securities held by such investment companies. ETFs may be less liquid than other investments, and thus their share values more volatile than the values of the investments they hold. Investments in ETFs are also subject to the “ETF Risks” described above.
Preferred Securities Risk. Preferred stocks are subject to the risks of equity securities generally and also risks associated with fixed-income securities, such as interest rate risk. A company’s preferred stock, which may pay fixed or variable rates of return, generally pays dividends only after the company makes required payments to creditors, including vendors, depositors, counterparties, holders of its bonds and other fixed-income securities. As a result, the value of a company’s preferred stock will react more strongly than bonds and other debt to actual or perceived changes in the company’s financial condition or prospects. Preferred stock may be less liquid than many other types of securities, such as common stock, and generally has limited or no voting rights. In addition, preferred stock is subject to the risks that a company may defer or not pay dividends, and, in certain situations, may call or redeem its preferred stock or convert it to common stock. To the extent that the Fund invests a substantial portion of its assets in convertible preferred stocks, declining common stock values may also cause the value of the Fund’s investments to decline.
Recent Market Events Risk. U.S. and international markets have experienced significant periods of volatility in recent years and months due to a number of economic, political and global macro factors including the impact of COVID-19, which has resulted in public health issues, growth concerns in the U.S. and overseas, layoffs, rising unemployment claims, changed travel and social behaviors, and reduced consumer spending. The lasting effects of COVID-19 on the global economy and the recovery from COVID-19 are uncertain and may last for an extended period of time. These developments as well as other events could result in further market volatility and negatively affect financial asset prices, the liquidity of certain securities and the normal operations of securities exchanges and other markets.
REIT Risk. A REIT is a company that owns or finances income-producing real estate. Through its investments in REITs, the Fund is subject to the risks of investing in the real estate market, including decreases in property revenues, increases in interest rates, increases in property taxes and operating expenses, legal and regulatory changes, a lack of credit or capital, defaults by borrowers or tenants, environmental problems and natural disasters.
REITs are subject to additional risks, including those related to adverse governmental actions; declines in property value and the real estate market; the potential failure to qualify for tax-free pass through of income; and exemption from registration as an investment company. REITs are dependent upon specialized management skills and may invest in relatively few properties, a small geographic area, or a small number of property types. As a result, investments in REITs may be volatile. To the extent the Fund invests in REITs concentrated in specific geographic areas or property types, the Fund may be subject to a greater loss as a result of adverse developments affecting such area or property types. REITs are pooled investment vehicles with their own fees and expenses and the Fund will indirectly bear a proportionate share of those fees and expenses.
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.
Risk Lose Money [Text] rr_RiskLoseMoney As with any investment, there is a risk that you could lose all or a portion of your investment in the Fund.
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus 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.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock Performance information for the Fund is not included because the Fund has not commenced operations as of the date of this Prospectus. When such information is included, this section will provide some indication of the risks of investing in the Fund by showing changes in the Fund’s performance history from year to year and showing how the Fund’s average annual total returns compare with those of a broad measure of market performance. Although past performance of the Fund is no guarantee of how it will perform in the future, historical performance may give you some indication of the risks of investing in the Fund. Updated performance information will be available on the Fund’s website at www.leatherbackam.com/etfs.
Performance One Year or Less [Text] rr_PerformanceOneYearOrLess Performance information for the Fund is not included because the Fund has not commenced operations as of the date of this Prospectus.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.leatherbackam.com/etfs
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Although past performance of the Fund is no guarantee of how it will perform in the future, historical performance may give you some indication of the risks of investing in the Fund.
Leatherback Long/Short Absolute Return ETF | Leatherback Long/Short Absolute Return ETF  
Prospectus [Line Items] rr_ProspectusLineItems  
Trading Symbol dei_TradingSymbol LBAR
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.95%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.18% [1]
Expenses (as a percentage of Assets) rr_ExpensesOverAssets 1.13%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 115
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 $ 359
Leatherback Long/Short Alternative Yield ETF  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Leatherback Long/Short Alternative Yield ETF
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The Leatherback Long/Short Alternative Yield ETF (the “Fund” or the “Alternative Yield ETF”) seeks capital appreciation and income.
Expense [Heading] rr_ExpenseHeading Fees and Expenses of the Fund
Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock This table describes the fees and expenses that you may pay if you buy, hold, and sell shares of the Fund (“Shares”). You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table and Example below.
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Shares are held in a taxable account. These costs, which are not reflected in total annual fund operating expenses or in the expense example above, affect the Fund’s performance. For the fiscal period from November 16, 2020 (commencement of operations) to August 31, 2021, the Fund’s portfolio turnover rate was 47% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 47.00%
Expenses Not Correlated to Ratio Due to Acquired Fund Fees [Text] rr_ExpensesNotCorrelatedToRatioDueToAcquiredFundFees Acquired Fund Fees and Expenses (“AFFE”) are the indirect costs of investing in other investment companies. Total Annual Fund Operating Expenses do not correlate to the expense ratio in the Fund’s Financial Highlights because the Financial Highlights include only the direct operating expenses of the Fund and dividends and interest on securities sold short and exclude AFFE.
Expense Example [Heading] rr_ExpenseExampleHeading Expense Example
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your Shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. The Example does not take into account brokerage commissions that you may pay on your purchases and sales of Shares.
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
The Fund is an actively-managed exchange-traded fund (“ETF”) that seeks to achieve its investment objective by purchasing long positions in securities believed to provide sustainable shareholder yield (defined as dividends plus buybacks plus debt paydowns) and taking short positions in securities expected to decline in price. The Fund will generally have net exposure of 75% - 110% long.
Investment decisions for the Fund are made by Leatherback Asset Management, LLC (“Leatherback” or the “Sub-Adviser”), the Fund’s sub-adviser. Leatherback identifies securities to purchase long for the Fund through quantitative and fundamental analyses of U.S.-listed large-, mid-, or small-capitalization companies. Leatherback typically looks to purchase securities of companies with high shareholder yield. As part of its analysis, Leatherback considers whether a security is expected to pay a dividend and the ability of the issuer to grow that dividend over time, although the Fund may own securities that do not pay any dividend. Leatherback considers alternative yield to include interest and dividend income received from a security that is not a debt instrument.
The Fund’s long positions are generally expected to be comprised of equity securities or depositary receipts, although long positions may also include investment-grade corporate bonds and convertible bonds. The Fund’s equity securities may include common stocks, preferred stocks, other ETFs, closed-end funds, business development companies (“BDCs”), master limited partnerships (“MLPs”), real estate investment trusts (“REITs”), and publicly-traded companies that are formed to own operating assets that produce defined cash flows (“YieldCos”).
The Fund may write (sell) covered calls up to 100% of the value of the Fund’s individual equity security or an index when Leatherback believes call premiums are attractive relative to the price of the underlying security or index.
Leatherback seeks to identify short positions for the Fund based on identifying idiosyncratic ideas that suggest a security’s price will decline. For example, Leatherback may look for financial or accounting anomalies in a company’s financial statements, may seek to identify short-term fads leading to overvalued securities, or look for companies with a poor governance record. Securities that the Fund sells short are generally expected to have lower margins and be in industries facing significant challenges for growth. The Fund may also sell short equity securities or other ETFs that are sector-, market capitalization-, or geography-focused or factor-based to take advantage of headwinds perceived by Leatherback for those investments.
A short sale is a transaction in which the Fund sells a security it does not own, typically in anticipation of a decline in the market price of that security. To effect a short sale, the Fund arranges through a broker to borrow the security it does not own to be delivered to a buyer of such security. In borrowing the security to be delivered to the buyer, the Fund will become obligated to replace the security borrowed at the time of replacement, regardless of the market price at that time. A short sale results in a gain when the price of the securities sold short declines between the date of the short sale and the date on which a security is purchased to replace the borrowed security. Conversely, a short sale will result in a loss if the price of the security sold short increases. When the Fund makes a short sale, the broker effecting the short sale typically holds the proceeds as part of the collateral securing the Fund’s obligation to cover the short position.
In addition to the strategies described above, the Fund may also purchase put options on equity securities or ETFs.
The Fund is considered to be non-diversified under the Investment Company Act of 1940, as amended (the “1940 Act”), which means that it may invest more of its assets in the securities of a single issuer or a smaller number of issuers than if it were a diversified fund.
Risk [Heading] rr_RiskHeading Principal Risks of Investing in the Fund
Risk Narrative [Text Block] rr_RiskNarrativeTextBlock
The principal risks of investing in the Fund are summarized below. The principal risks are presented in alphabetical order to facilitate finding particular risks and comparing them with those of other funds. Each risk summarized below is considered a “principal risk” of investing in the Fund, regardless of the order in which the risks appear. As with any investment, there is a risk that you could lose all or a portion of your investment in the Fund. Some or all of these risks may adversely affect the Fund’s net asset value per share (“NAV”), trading price, yield, total return and/or ability to meet its investment objectives. For more information about the risks of investing in the Fund, see the section in the Fund’s Prospectus titled “Additional Information About the Funds—Principal Risks of Investing in Each Fund.”
Associated Risks of Short Selling. The Fund may make short sales of securities, which involves selling a security it does not own in anticipation that the price of the security will decline. Short sales may involve substantial risk and leverage. Short sales expose the Fund to the risk that it will be required to buy (“cover”) the security sold short when the security has appreciated in value or is unavailable, thus resulting in a loss to the Fund. Short sales also involve the risk that losses may exceed the amount invested and may be unlimited.
BDC Risk. BDCs generally invest in debt securities that are not rated by a credit rating agency and are considered below investment grade quality (“junk bonds”). Little public information generally exists for the type of companies in which a BDC may invest and, therefore, there is a risk that the Fund may not be able to make a fully informed evaluation of the BDC and its portfolio of investments. In addition, investments made by BDCs are typically illiquid and are difficult to value for purposes of determining a BDC’s net asset value.
Closed-End Fund Risk. Shares of closed-end funds frequently trade at a price per share that is less than the net asset value per share. There can be no assurance that the market discount on shares of any closed-end fund purchased by the Fund will ever decrease or that when the Fund seeks to sell shares of a closed-end fund it can receive the net asset value of those shares.
Convertible Securities Risk. Convertible securities rank senior to the issuer's common stock, but may be subordinate to senior debt obligations. In part, the total return for a convertible security may depend upon the performance of the underlying stock into which it can be converted. Synthetic convertibles may respond differently to market fluctuations than traditional convertible securities. They are also subject to counterparty risk.
Depositary Receipt Risk. Depositary receipts involve risks similar to those associated with investments in foreign securities and give rise to certain additional risks. Depositary receipts listed on U.S. or foreign exchanges are issued by banks or trust companies, and entitle the holder to all dividends and capital gains that are paid out on the underlying foreign shares (“Underlying Shares”). When the Fund invests in depositary receipts as a substitute for an investment directly in the Underlying Shares, the Fund is exposed to the risk that the depositary receipts may not provide a return that corresponds precisely with that of the Underlying Shares.
Equity Market Risk. 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.
ETF Risk.
◦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.
◦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., TBA transactions, short positions, derivative instruments, and bonds that cannot be broken up beyond certain minimum sizes needed for transfer and settlement). 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.
◦Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid-ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.
◦Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant.
◦Trading. Although Shares are listed on a national securities exchange, such as NYSE Arca, Inc.(the “Exchange”) and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that 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.
Fixed Income Risk. The value of the Fund’s investments in fixed income securities will fluctuate with changes in interest rates. Typically, a rise in interest rates causes a decline in the value of fixed income securities owned indirectly by the Fund. On the other hand, if rates fall, the value of the fixed income securities generally increases. The Fund may be subject to a greater risk of rising interest rates due to the current period of historically low rates and the effect of potential government fiscal policy initiatives and resulting market reaction to those initiatives. In general, the market price of fixed income securities with longer maturities will increase or decrease more in response to changes in interest rates than shorter-term securities.
General 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), interest rates, global demand for particular products or resources, natural disasters or events, pandemic diseases, terrorism, regulatory events, and government controls.
Management Risk. The Fund is actively-managed and may not meet its investment objective based on the Sub-Adviser’s success or failure to implement investment strategies for the Fund.
Market Capitalization Risk.
◦ 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.
◦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.
◦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.
MLP Risk. The Fund’s exposure to MLPs may subject the Fund to greater volatility than investments in traditional securities. The value of MLPs and MLP-based ETFs and notes may be affected by changes in overall market movements, commodity index volatility, changes in interest rates, or sectors affecting a particular industry or commodity, such as drought, floods, weather, livestock disease, embargoes, tariffs, and international economic, political and regulatory developments. To the extent the Fund’s investments in MLPs expose its portfolio to the energy sector, such as the oil and gas industries, the Fund may experience additional risks related to these industries.
MLP Tax Risk. If an MLP in which the Fund invests is taxed as a partnership for federal income tax purposes, the Fund will include in its taxable income its allocable share of the MLP’s income regardless of whether the Fund receives any distribution from the MLP. Thus, the Fund may be required to sell other securities to satisfy the distribution requirements to qualify as a regulated investment company (“RIC”) and to avoid Fund-level federal income and excise taxes. In addition, if an MLP in which the Fund invests does not qualify as a qualified publicly-traded partnership (and is otherwise not taxed as a corporation), income derived by the Fund from the MLP may be treated as non-qualifying income and could jeopardize the Fund’s status as a RIC. Distributions to the Fund from an MLP that is taxed as a partnership for federal income tax purposes will constitute a return of capital to the extent of the Fund’s basis in its interest in the MLP. If the Fund retains an investment until its basis is reduced to zero, distributions in excess of basis will generally constitute capital gain for federal income tax purposes.
New Adviser Risk. Leatherback is a newly registered investment adviser and has not previously served as an adviser or sub-adviser to an investment company. As a result, there is no long-term track record against which an investor may judge Leatherback and it is possible Leatherback may not achieve the Fund’s intended investment objective.
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.
Options Risk. Options enable the Fund to purchase exposure that is significantly greater than the premium paid. Consequently, the value of such options can be volatile, and a small investment in options can have a large impact on the performance of the Fund. The Fund risks losing all or part of the cash paid (premium) for purchasing options. Even a small decline in the value of a reference asset underlying call options or a small increase in the value of a reference asset underlying put options can result in the entire investment in such options being lost. Additionally, the value of the option may be lost if the Sub-Adviser fails to exercise such option at or prior to its expiration.
Other Investment Companies Risk. The Fund will incur higher and duplicative expenses when it invests in other investment companies, such as ETFs, BDCs and closed-end funds. By investing in another investment company, the Fund becomes a shareholder of that investment company and bears its proportionate share of the fees and expenses of the other investment company. There is also the risk that the Fund may suffer losses due to the investment practices of the underlying funds as the Fund will be subject to substantially the same risks as those associated with the direct ownership of securities held by such investment companies. ETFs may be less liquid than other investments, and thus their share values more volatile than the values of the investments they hold. Investments in ETFs are also subject to the “ETF Risks” described above.
Preferred Securities Risk. Preferred stocks are subject to the risks of equity securities generally and also risks associated with fixed-income securities, such as interest rate risk. A company’s preferred stock, which may pay fixed or variable rates of return, generally pays dividends only after the company makes required payments to creditors, including vendors, depositors, counterparties, holders of its bonds and other fixed-income securities. As a result, the value of a company’s preferred stock will react more strongly than bonds and other debt to actual or perceived changes in the company’s financial condition or prospects. Preferred stock may be less liquid than many other types of securities, such as common stock, and generally has limited or no voting rights. In addition, preferred stock is subject to the risks that a company may defer or not pay dividends, and, in certain situations, may call or redeem its preferred stock or convert it to common stock. To the extent that the Fund invests a substantial portion of its assets in convertible preferred stocks, declining common stock values may also cause the value of the Fund’s investments to decline.
Recent Market Events Risk. U.S. and international markets have experienced significant periods of volatility in recent years and months due to a number of economic, political and global macro factors including the impact of COVID-19, which has resulted in public health issues, growth concerns in the U.S. and overseas, layoffs, rising unemployment claims, changed travel and social behaviors, and reduced consumer spending. The lasting effects of COVID-19 on the global economy and the recovery from COVID-19 are uncertain and may last for an extended period of time. These developments as well as other events could result in further market volatility and negatively affect financial asset prices, the liquidity of certain securities and the normal operations of securities exchanges and other markets.
Recently Organized Fund Risk. The Fund is newer, with limited operating history. As a result, prospective investors do not have a long-term 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.
REIT Risk. A REIT is a company that owns or finances income-producing real estate. Through its investments in REITs, the Fund is subject to the risks of investing in the real estate market, including decreases in property revenues, increases in interest rates, increases in property taxes and operating expenses, legal and regulatory changes, a lack of credit or capital, defaults by borrowers or tenants, environmental problems and natural disasters.
REITs are subject to additional risks, including those related to adverse governmental actions; declines in property value and the real estate market; the potential failure to qualify for tax-free pass through of income; and exemption from registration as an investment company. REITs are dependent upon specialized management skills and may invest in relatively few properties, a small geographic area, or a small number of property types. As a result, investments in REITs may be volatile. To the extent the Fund invests in REITs concentrated in specific geographic areas or property types, the Fund may be subject to a greater loss as a result of adverse developments affecting such area or property types. REITs are pooled investment vehicles with their own fees and expenses and the Fund will indirectly bear a proportionate share of those fees and expenses.
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.
◦Financial Services Sector Risk. The Fund may invest in companies in the financial services sector, and therefore the performance of the Fund could be negatively impacted by events affecting this sector. This sector can be significantly affected by changes in interest rates, government regulation, the rate of defaults on corporate, consumer and government debt and the availability and cost of capital, among other factors. Insurance companies, in particular, may be significantly affected by changes in interest rates, catastrophic events, price and market competition, the imposition of premium rate caps, or other changes in government regulation or tax law and/or rate regulation, which may have an adverse impact on their profitability. This sector has experienced significant losses in the recent past, and the impact of more stringent capital requirements and of recent or future regulation on any individual financial company or on the sector as a whole cannot be predicted. In recent years, cyber attacks and technology malfunctions and failures have become increasingly frequent in this sector and have caused significant losses. As of August 31, 2021, 36.8% of the Fund’s total investments were invested in the financial services sector.
YieldCo Risk. Investments in securities of YieldCos involve risks that differ from investments in traditional operating companies, including risks related to the relationship between the YieldCo and the company responsible for the formation of the YieldCo (the “YieldCo Sponsor”). YieldCos typically remain dependent on the management and administration services provided by or under the direction of the YieldCo Sponsor and on the ability of the YieldCo Sponsor to identify and present the YieldCo with acquisition opportunities, which may often be assets of the YieldCo Sponsor itself. YieldCo Sponsors may have interests that conflict with the interests of the YieldCo, and may retain control of the YieldCo via classes of stock held by the YieldCo Sponsor. YieldCo securities can be affected by macro-economic and other factors affecting the stock market in general, expectations of interest rates, investor sentiment towards YieldCos or the energy sector, changes in a particular issuer’s financial condition, or unfavorable or unanticipated poor performance of a particular issuer (in the case of YieldCos, generally measured in terms of distributable cash flow). Any event that limits the YieldCo’s ability to maintain or grow its distributable cash flow would likely have a negative impact on the YieldCo’s share price. YieldCos may finance their growth strategy with debt, which may increase a YieldCo’s leverage and the risks associated with the YieldCo. The ability of a YieldCo to maintain or grow its dividend distributions may depend on the entity’s ability to minimize its tax liabilities through the use of accelerated depreciation schedules, tax loss carryforwards, and tax incentives. Changes to the current tax code could result in greater tax liabilities, which would reduce the YieldCo’s distributable cash flow.
Risk Lose Money [Text] rr_RiskLoseMoney As with any investment, there is a risk that you could lose all or a portion of your investment in the Fund.
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus 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.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock Performance information for the Fund is not included because the Fund has not completed a full calendar year of operations as of the date of this Prospectus. When such information is included, this section will provide some indication of the risks of investing in the Fund by showing changes in the Fund’s performance history from year to year and showing how the Fund’s average annual total returns compare with those of a broad measure of market performance. Although past performance of the Fund is no guarantee of how it will perform in the future, historical performance may give you some indication of the risks of investing in the Fund. Updated performance information is available on the Fund’s website at www.leatherbackam.com/etfs.
Performance One Year or Less [Text] rr_PerformanceOneYearOrLess Performance information for the Fund is not included because the Fund has not completed a full calendar year of operations as of the date of this Prospectus.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.leatherbackam.com/etfs
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Although past performance of the Fund is no guarantee of how it will perform in the future, historical performance may give you some indication of the risks of investing in the Fund.
Leatherback Long/Short Alternative Yield ETF | Leatherback Long/Short Alternative Yield ETF  
Prospectus [Line Items] rr_ProspectusLineItems  
Trading Symbol dei_TradingSymbol LBAY
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.95%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.28%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.20% [2]
Expenses (as a percentage of Assets) rr_ExpensesOverAssets 1.43%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 146
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 452
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 782
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 1,713
[1] Estimated for the current fiscal year
[2] Acquired Fund Fees and Expenses (“AFFE”) are the indirect costs of investing in other investment companies. Total Annual Fund Operating Expenses do not correlate to the expense ratio in the Fund’s Financial Highlights because the Financial Highlights include only the direct operating expenses of the Fund and dividends and interest on securities sold short and exclude AFFE.