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Cambria Global Shareholder Yield ETF  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Cambria Global Shareholder Yield ETF
Objective [Heading] rr_ObjectiveHeading INVESTMENT OBJECTIVE
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock
The Cambria Global Shareholder Yield ETF (the “Fund”) seeks income and capital appreciation.
Expense [Heading] rr_ExpenseHeading FEES AND EXPENSES
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 also pay brokerage commissions on the purchase and sale of Shares, which are not reflected in the table or example.
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 may pay transaction costs, including 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 annual fund operating expenses or in the example, affect the Fund’s performance. As of the date of this Prospectus, the Fund has not yet commenced operations and portfolio turnover data therefore is not available.
Other Expenses, New Fund, Based on Estimates [Text] rr_OtherExpensesNewFundBasedOnEstimates Other Expenses are estimated for the current fiscal year.
Expense Example [Heading] rr_ExpenseExampleHeading EXAMPLE
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock The following 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 for the time periods indicated and then redeem all of your Shares at the end of those periods. The example also assumes that the Fund provides a return of 5% a year and that operating expenses remain the same. You may also pay brokerage commissions on the purchase and sale of Shares, which are not reflected in the example.
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 exchanged-traded fund (“ETF”) that invests in equity securities that are issued by publicly listed companies that provide “high shareholder yield.”
The Fund’s investment sub-adviser, Cambria Investment Management, L.P. (“Cambria” or the “Sub-Adviser”), defines “shareholder yield” as the amount of money shareholders receive from a company in the form of cash dividends, net share repurchases (buybacks), and net debt reduction. For the purposes of this strategy, Cambria calculates a company’s shareholder yield by considering the following characteristics: (i) dividend payments to shareholders, (ii) return of capital in the form of share buybacks (i.e., a company’s repurchase of its own shares from the marketplace, which, in turn, reduces the number of outstanding shares for continuing shareholders or generates proceeds for existing shareholders), and (iii) paydown of a company’s debt (i.e., reducing a company’s outstanding debt). Cambria believes that, while any one of these measures of a company’s cash flows, in isolation, is inadequate to determine the attractiveness of its equity securities, considered together these measures have the potential to result in the construction of a portfolio of companies with higher potential for income and capital appreciation.
The Fund’s investment universe consists of equity securities, including common stock and depositary receipts, issued by publicly listed companies of any market capitalization.
Under normal market conditions, Cambria expects the Fund to have geographical weighting across U.S., foreign developed, and emerging markets (each, a “geographical segment”) to be broadly in line with global market cap weightings, as determined by Cambria, but Cambria reserves the right to overweight a geographical segment. As of the date of this Prospectus, the Fund is expected to have significant investment exposure to companies in the financials sector and the energy sector. The Fund is also expected to have significant geographical exposure to the U.S., Asia-Pacific, and Europe, the Middle East and Africa (“EMEA”); however, the Fund’s sector and geographic exposures may change from time to time.
Utilizing its own quantitative model, Cambria generally selects the top 20% of stocks in each geographic segment based on their shareholder yield, as measured by dividend payments and net share buybacks.
Cambria’s quantitative algorithm then factors in the remaining stocks’ debt paydowns and applies a number of value metrics to create a composite, including metrics such as, but not limited to, price-to-book (P/B) ratio, price-to-sales (P/S) ratio, price-to-earnings (P/E) ratio, price-to-free cash-flow (P/FCF or P/CF) ratio, and enterprise multiple (EV/EBITDA). Cambria then selects the top 100 stocks for inclusion that exhibit, in the aggregate, the best combination of shareholder yield characteristics and value metrics. Although Cambria seeks to weight stocks equally, security weights may fluctuate in response to market conditions and investment opportunities.
Cambria typically will sell a security for the Fund when Cambria believes that the security is overvalued or better investment opportunities are available, to invest in cash and cash equivalents, or to meet redemptions. Cambria expects to adjust the holdings of the Fund periodically to meet the investment criteria and target allocations (e.g., security weights) established by such Fund’s quantitative algorithm.
Risk [Heading] rr_RiskHeading PRINCIPAL INVESTMENT RISKS
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading PERFORMANCE
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock Performance information is not provided below because the Fund has not yet been in operation for one full calendar year. When provided, the information will provide some indication of the risks of investing in the Fund by showing how the Fund’s average annual returns compare with a broad measure of market performance. Past performance does not necessarily indicate how the Fund will perform in the future. Updated performance information will be available at https://www.cambriafunds.com/.
Performance One Year or Less [Text] rr_PerformanceOneYearOrLess Performance information is not provided below because the Fund has not yet been in operation for one full calendar year.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress https://www.cambriafunds.com/
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance does not necessarily indicate how the Fund will perform in the future.
Cambria Global Shareholder Yield ETF | Risk Lose Money [Member]  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock An investor may lose money by investing in the Fund.
Cambria Global Shareholder Yield ETF | Risk Not Insured Depository Institution [Member]  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock An investment in the Fund is not a bank deposit and is not insured or guaranteed by the FDIC or any government agency.
Cambria Global Shareholder Yield ETF | Large-Capitalization Companies Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock 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.
Cambria Global Shareholder Yield ETF | Small- And Mid-Capitalization Company Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock
Small- and Mid-Capitalization Company Risk. Investing in securities of small- and 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 small- and 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.
Cambria Global Shareholder Yield ETF | Dividend Paying Security Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock Dividend Paying Security Risk. Securities that pay high dividends as a group can fall out of favor with the market, causing these companies to underperform companies that do not pay high dividends. Also, changes in the dividend policies of companies owned by the Fund and the capital resources available for these companies’ dividend payments may adversely affect the Fund.
Cambria Global Shareholder Yield ETF | Buyback Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock Buyback Risk. When a company repurchases its shares from the marketplace through share buybacks, investors may perceive this action to be a reflection of management’s belief that company shares are undervalued, but there is no guarantee that the price of a company’s stock will increase after the company announces a buyback. Accordingly, share buybacks may not be an accurate predictor of a company’s value or future share performance.
Cambria Global Shareholder Yield ETF | Quantitative Security Selection Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock Quantitative Security Selection Risk. Cambria uses quantitative techniques to generate investment decisions and select stocks, and the Fund may not perform as intended if it relies on erroneous or outdated data from one or more third parties. Errors in data used in the quantitative model may occur from time to time and may not be identified and/or corrected before having an adverse impact on the Fund and its shareholders.
Cambria Global Shareholder Yield ETF | Risk Of Investing In The U.S Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock
Risk of Investing in the U.S. Certain changes in the U.S. economy, such as when the U.S. economy weakens or when its financial markets decline, may have an adverse effect on the securities to which the Fund has exposure.
Cambria Global Shareholder Yield ETF | Foreign Investment Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock Foreign Investment Risk. Returns on investments in foreign securities could be more volatile than, or trail the returns on 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.
Cambria Global Shareholder Yield ETF | Depositary Receipts Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock Depositary Receipts. 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, the underlying issuers of certain depositary receipts, particularly unsponsored or unregistered depositary receipts, are under no obligation to distribute shareholder communications to the holders of such receipts, or to pass through to them any voting rights with respect to the deposited securities. Depositary receipts that are not sponsored by the issuer may be less liquid and there may be less readily available public information about the issuer.
Cambria Global Shareholder Yield ETF | Risk Of Investing In Developed Countries Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock
Risk of Investing in Developed Countries. The Fund’s investment in developed country issuers may subject the Fund to legal, regulatory, political, currency, security, economic and other risks associated with developed countries. Developed countries tend to represent a significant portion of the global economy and have generally experienced slower economic growth than some less developed countries. Certain developed countries have experienced security concerns, such as war, terrorism and strained international relations. Incidents involving a country’s or region’s security may cause uncertainty in its markets and may adversely
affect its economy and the Fund’s investments. In addition, developed countries may be adversely impacted by changes to the economic conditions of certain key trading partners, regulatory burdens, debt burdens and the price or availability of certain commodities.
Cambria Global Shareholder Yield ETF | Emerging Markets Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock
Emerging Markets Risk. Emerging market investments are subject to the same risks as foreign investments and to additional risks due to greater political and economic uncertainties as well as a relative lack of information about issuers in such markets. For example, emerging markets may be subject to, among other risks, greater market volatility; lower trading volume and liquidity; greater social, political and economic uncertainty; governmental controls on foreign investments and limitations on repatriation of invested capital; lower disclosure, corporate governance, auditing and financial reporting standards; fewer protections of property rights; fewer investor rights and limited legal, contractual or practical remedies available to investors against emerging market companies; restrictions on the transfer of securities or currency; and settlement and trading practices that differ from U.S. markets and markets of more developed countries.
Cambria Global Shareholder Yield ETF | Sector Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock
Sector Risks. The Fund will be subject to sector risks. 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. Those risks may be material and the risks differ for each of the various sectors. The Sub-Adviser expects that the Fund will have significant exposure to the following sectors:
Energy Sector Risk. The energy sector includes, for example, oil, gas, and consumable fuel companies. Energy companies can be substantially impacted by, among other things, the volatility of oil prices, worldwide supply and demand, worldwide economic growth, and political instability in oil or gas producing regions such as the Middle East and Eastern Europe.
Financials Sector Risk. Performance of companies in the financials sector may be adversely impacted by many factors, including, among others, government regulations, economic conditions, credit rating downgrades, changes in interest rates, and decreased liquidity in credit markets. 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.
Cambria Global Shareholder Yield ETF | Sector Risk, Energy Sector Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock
Energy Sector Risk. The energy sector includes, for example, oil, gas, and consumable fuel companies. Energy companies can be substantially impacted by, among other things, the volatility of oil prices, worldwide supply and demand, worldwide economic growth, and political instability in oil or gas producing regions such as the Middle East and Eastern Europe.
Cambria Global Shareholder Yield ETF | Sector Risk, Financials Sector Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock
Financials Sector Risk. Performance of companies in the financials sector may be adversely impacted by many factors, including, among others, government regulations, economic conditions, credit rating downgrades, changes in interest rates, and decreased liquidity in credit markets. 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.
Cambria Global Shareholder Yield ETF | Value-Style Investing Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock Value Style Investing Risk. The Fund considers certain value metrics when selecting stocks for inclusion in its portfolio and, as a result, the Fund may underperform when the market favors stocks with growth characteristics or a non-value investment approach. Value investments are subject to the risk that their intrinsic value may never be realized by the market.
Cambria Global Shareholder Yield ETF | Investment Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock 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 or 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.
Cambria Global Shareholder Yield ETF | Equity Investing Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock 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.
Cambria Global Shareholder Yield ETF | ETF Risks Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock
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, 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 Cboe BZX Exchange, Inc. (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. In addition, because securities held by the Fund may trade on foreign exchanges that are closed when its primary listing exchange is open, the Fund is likely to experience premiums and discounts greater than those of domestic ETFs.
•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).
Cambria Global Shareholder Yield ETF | ETF Risks, Authorized Participants, Market Makers and Liquidity Providers Concentration Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock 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, 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.
Cambria Global Shareholder Yield ETF | ETF Risks, Premium-Discount Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock 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 Cboe BZX Exchange, Inc. (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. In addition, because securities held by the Fund may trade on foreign exchanges that are closed when its primary listing exchange is open, the Fund is likely to experience premiums and discounts greater than those of domestic ETFs.
Cambria Global Shareholder Yield ETF | ETF Risks, Cost Of Trading Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock 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.
Cambria Global Shareholder Yield ETF | ETF Risks, Trading Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock 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).
Cambria Global Shareholder Yield ETF | Management Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock Management Risk. The Fund is actively-managed and may not meet its investment objective based on the Adviser’s, Sub-Adviser’s, or portfolio managers’ success or failure to implement investment strategies for the Fund. The success of the Fund’s investment program depends largely on the investment techniques and risk analyses applied by the Adviser, Sub-Adviser, and the portfolio managers and the skill of the Adviser, Sub-Adviser, and/or portfolio managers in evaluating, selecting, and monitoring the Fund’s assets. The Fund could experience losses (realized and unrealized) if the judgment of the Adviser, Sub-Adviser, or portfolio managers about markets or sectors or the attractiveness of particular investments made for the Fund’s portfolio prove to be incorrect. It is possible the investment techniques and risk analyses employed on behalf of the Fund will not produce the desired results. Absent unusual circumstances (e.g., the Adviser determines a different security has higher liquidity but offers a similar investment profile as a recommended security), the Adviser will generally follow the Sub-Adviser’s investment recommendations to buy, hold, and sell securities and financial instruments.
Cambria Global Shareholder Yield ETF | High Portfolio Turnover Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock High Portfolio Turnover Risk. The Fund’s investment strategy may from time to time result in higher turnover rates. This may increase the Fund’s brokerage commission costs, which could negatively impact the performance of the Fund. Rapid portfolio turnover also exposes shareholders to a higher current realization of short-term capital gains, distributions of which would generally be taxed to you as ordinary income and thus cause you to pay higher taxes.
Cambria Global Shareholder Yield ETF | New Fund Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock New Fund Risk. The Fund is a recently organized investment company with no operating history. As a result, prospective investors have no 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.
Cambria Global Shareholder Yield ETF | Geopolitical/Natural Disaster Risks Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock Geopolitical/Natural Disaster Risks. The Fund’s investments are subject to geopolitical and natural disaster risks, such as war, terrorism, trade disputes, political or economic dysfunction within some nations, public health crises and related geopolitical events, as well as environmental disasters, epidemics and/or pandemics, which may add to instability in world economies and volatility in markets. The impact may be short-term or may last for extended periods.
Cambria Global Shareholder Yield ETF | Cambria Global Shareholder Yield ETF  
Prospectus [Line Items] rr_ProspectusLineItems  
Trading Symbol dei_TradingSymbol AYLD
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.59%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets none [1]
Expenses (as a percentage of Assets) rr_ExpensesOverAssets 0.59%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 60
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 $ 189
Cambria Tax Aware ETF  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Cambria Tax Aware ETF
Objective [Heading] rr_ObjectiveHeading INVESTMENT OBJECTIVE
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock
The Cambria Tax Aware ETF (the “Fund”) seeks to provide a tax-efficient investment return consisting of capital appreciation.
Expense [Heading] rr_ExpenseHeading FEES AND EXPENSES
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 also pay brokerage commissions on the purchase and sale of Shares, which are not reflected in the table or example.
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 may pay transaction costs, including 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 annual fund operating expenses or in the example, affect the Fund’s performance. As of the date of this Prospectus, the Fund has not yet commenced operations and portfolio turnover data therefore is not available.
Other Expenses, New Fund, Based on Estimates [Text] rr_OtherExpensesNewFundBasedOnEstimates Other Expenses are estimated for the current fiscal year.
Expense Example [Heading] rr_ExpenseExampleHeading EXAMPLE
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock The following 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 for the time periods indicated and then redeem all of your Shares at the end of those periods. The example also assumes that the Fund provides a return of 5% a year and that operating expenses remain the same. You may also pay brokerage commissions on the purchase and sale of Shares, which are not reflected in the example.
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 exchanged-traded fund (“ETF”) that invests in U.S.-listed equity securities that have a market capitalization of greater than $5 billion.
Utilizing its own quantitative model, the Fund’s investment sub-adviser, Cambria Investment Management, L.P. (“Cambria” or the “Sub-Adviser”) selects value stocks with lower dividend distributions, which are generally taxed as ordinary income. Cambria selects lower dividend yielding stocks that are attractive from a multi-factor value perspective based on traditional value metrics, including, but not limited to, price-to-sales (P/S) ratio, price-to-earnings (P/E) ratio, and enterprise multiple (EV/EBITDA). Cambria believes that a composite approach, where multiple value metrics are used to rank the stock universe, can improve the robustness of selecting stocks versus reliance on any one value factor. Value stocks that do not generate high dividend yields have the potential to offer higher after-tax returns than high dividend yielding stocks with similar total returns. While many investors prefer stocks with high dividend yields, these stocks can be very inefficient for taxable investors, particularly those investors in the higher tax brackets. Accordingly, Cambria screens out high dividend yielding stocks and selects companies with strong value metrics to optimize the Fund’s after-tax returns and reduce investors’ tax liability associated with dividend distributions.
To be eligible for inclusion in the Fund, equity securities must pass various market capitalization, sector concentration, and liquidity requirements. Cambria begins with the largest 1,000 U.S. equities by market capitalization. After removing the highest yielding stocks, Cambria then selects the top 50-100 stocks for inclusion in the Fund’s portfolio that exhibit, in the aggregate, the best combination of lower dividend yield and value metrics. The Fund consists of approximately 50-100 stocks that are equal weighted, although weights may fluctuate in response to market conditions and investment opportunities.
The Fund may sell a security when Cambria believes that the security is overvalued or better investment opportunities are available, to invest in cash and cash equivalents, or to meet redemptions. Cambria expects to adjust the Fund’s holdings to meet target allocations at least annually.
Risk [Heading] rr_RiskHeading PRINCIPAL INVESTMENT RISKS
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading PERFORMANCE
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock Performance information is not provided below because the Fund has not yet been in operation for one full calendar year. When provided, the information will provide some indication of the risks of investing in the Fund by showing how the Fund’s average annual returns compare with a broad measure of market performance. Past performance does not necessarily indicate how the Fund will perform in the future. Updated performance information will be available at https://www.cambriafunds.com/.
Performance One Year or Less [Text] rr_PerformanceOneYearOrLess Performance information is not provided below because the Fund has not yet been in operation for one full calendar year.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress https://www.cambriafunds.com/
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance does not necessarily indicate how the Fund will perform in the future.
Cambria Tax Aware ETF | Risk Lose Money [Member]  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock An investor may lose money by investing in the Fund.
Cambria Tax Aware ETF | Risk Not Insured Depository Institution [Member]  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock An investment in the Fund is not a bank deposit and is not insured or guaranteed by the FDIC or any government agency.
Cambria Tax Aware ETF | Tax Aware Investing Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock Tax Aware Investing Risk. The Fund will invest in stocks that have lower dividend distributions, which are generally taxed as ordinary income. The Fund’s tax aware strategy may reduce an investor’s taxable income from the Fund, but will not eliminate it. This strategy may require trade-offs that reduce pretax income. Managing the Fund to maximize after-tax returns may also potentially have a negative effect on the Fund’s performance. Because tax consequences are considered in managing the Fund, the Fund’s pre-tax performance may be lower than that of a similar fund that is not tax-managed. Even though a tax aware strategy is being used, it may not reduce the amount of taxable income and capital gains distributed by the Fund to shareholders, or the amount of Fund distributions that are taxable at ordinary income rates.
Cambria Tax Aware ETF | Large-Capitalization Companies Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock 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.
Cambria Tax Aware ETF | Quantitative Security Selection Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock Quantitative Security Selection Risk. Cambria uses quantitative techniques to generate investment decisions and select stocks, and the Fund may not perform as intended if it relies on erroneous or outdated data from one or more third parties. Errors in data used in the quantitative model may occur from time to time and may not be identified and/or corrected before having an adverse impact on the Fund and its shareholders.
Cambria Tax Aware ETF | Risk Of Investing In The U.S Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock
Risk of Investing in the U.S. Certain changes in the U.S. economy, such as when the U.S. economy weakens or when its financial markets decline, may have an adverse effect on the securities to which the Fund has exposure.
Cambria Tax Aware ETF | Value-Style Investing Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock Value Style Investing Risk. The Fund considers certain value metrics when selecting stocks for inclusion in its portfolio and, as a result, the Fund may underperform when the market favors stocks with growth characteristics or a non-value investment approach. Value investments are subject to the risk that their intrinsic value may never be realized by the market.
Cambria Tax Aware ETF | Investment Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock 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 or 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.
Cambria Tax Aware ETF | Equity Investing Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock 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.
Cambria Tax Aware ETF | ETF Risks Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock
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, 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 Cboe BZX Exchange, Inc. (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.
•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).
Cambria Tax Aware ETF | ETF Risks, Authorized Participants, Market Makers and Liquidity Providers Concentration Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock 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, 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.
Cambria Tax Aware ETF | ETF Risks, Premium-Discount Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock 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 Cboe BZX Exchange, Inc. (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.
Cambria Tax Aware ETF | ETF Risks, Cost Of Trading Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock 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.
Cambria Tax Aware ETF | ETF Risks, Trading Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock 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).
Cambria Tax Aware ETF | Management Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock Management Risk. The Fund is actively-managed and may not meet its investment objective based on the Adviser’s, Sub-Adviser’s, or portfolio managers’ success or failure to implement investment strategies for the Fund. The success of the Fund’s investment program depends largely on the investment techniques and risk analyses applied by the Adviser, Sub-Adviser, and the portfolio managers and the skill of the Adviser, Sub-Adviser, and/or portfolio managers in evaluating, selecting, and monitoring the Fund’s assets. The Fund could experience losses (realized and unrealized) if the judgment of the Adviser, Sub-Adviser, or portfolio managers about markets or sectors or the attractiveness of particular investments made for the Fund’s portfolio prove to be incorrect. It is possible the investment techniques and risk analyses employed on behalf of the Fund will not produce the desired results. Absent unusual circumstances (e.g., the Adviser determines a different security has higher liquidity but offers a similar investment profile as a recommended security), the Adviser will generally follow the Sub-Adviser’s investment recommendations to buy, hold, and sell securities and financial instruments.
Cambria Tax Aware ETF | New Fund Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock New Fund Risk. The Fund is a recently organized investment company with no operating history. As a result, prospective investors have no 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.
Cambria Tax Aware ETF | Geopolitical/Natural Disaster Risks Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock Geopolitical/Natural Disaster Risks. The Fund’s investments are subject to geopolitical and natural disaster risks, such as war, terrorism, trade disputes, political or economic dysfunction within some nations, public health crises and related geopolitical events, as well as environmental disasters, epidemics and/or pandemics, which may add to instability in world economies and volatility in markets. The impact may be short-term or may last for extended periods.
Cambria Tax Aware ETF | Cambria Tax Aware ETF  
Prospectus [Line Items] rr_ProspectusLineItems  
Trading Symbol dei_TradingSymbol TAX
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.49%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets none [2]
Expenses (as a percentage of Assets) rr_ExpensesOverAssets 0.49%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 50
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 $ 157
Cambria Endowment Style ETF  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Cambria Endowment Style ETF
Objective [Heading] rr_ObjectiveHeading INVESTMENT OBJECTIVE
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock
The Cambria Endowment Style ETF (the “Fund”) seeks income and capital appreciation.
Expense [Heading] rr_ExpenseHeading FEES AND EXPENSES
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 also pay brokerage commissions on the purchase and sale of Shares, which are not reflected in the table or example.
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 may pay transaction costs, including 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 annual fund operating expenses or in the example, affect the Fund’s performance. As of the date of this Prospectus, the Fund has not yet commenced operations and portfolio turnover data therefore is not available.
Other Expenses, New Fund, Based on Estimates [Text] rr_OtherExpensesNewFundBasedOnEstimates Other Expenses and Acquired Fund Fees and Expenses are estimated for the current fiscal year. “Acquired Fund Fees and Expenses” (“AFFE”) are indirect fees and expenses that the Fund incurs from investing in the shares of other investment companies.
Acquired Fund Fees and Expenses, Based on Estimates [Text] rr_AcquiredFundFeesAndExpensesBasedOnEstimates Other Expenses and Acquired Fund Fees and Expenses are estimated for the current fiscal year. “Acquired Fund Fees and Expenses” (“AFFE”) are indirect fees and expenses that the Fund incurs from investing in the shares of other investment companies.
Expense Example [Heading] rr_ExpenseExampleHeading EXAMPLE
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock The following 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 for the time periods indicated and then redeem all of your Shares at the end of those periods. The example also assumes that the Fund provides a return of 5% a year and that operating expenses remain the same. You may also pay brokerage commissions on the purchase and sale of Shares, which are not reflected in the example.
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 considered a “fund of funds” that seeks to achieve its investment objective by primarily investing the Fund’s assets in affiliated and unaffiliated exchange-traded funds (“Underlying ETFs”).
The Fund is actively managed and is designed to provide diversified exposure to all of the major asset classes (e.g., equities, fixed income, and real assets and alternatives) in U.S., foreign developed, and emerging markets. The Fund seeks to provide absolute positive returns (positive returns regardless of the direction of the overall market) with an aggressive risk profile by investing in a portfolio of ETFs. The Fund employs leverage by investing in exchange-traded futures contracts to gain additional exposure to certain markets or assets. Futures contracts have an inherent leverage built into them since, by posting a specified margin, an investor can achieve much larger notional exposure.
The Fund’s initial investment universe begins with all U.S.-listed ETFs. This list is reviewed and updated at least annually. Underlying ETFs are selected based on several factors, including, but not limited to Cambria’s analysis of an Underlying ETF’s principal investment strategy, risk adjusted return, alpha, tracking error, and cost.
Under normal market conditions, the Fund expects to have notional exposure of between 130% and 150% of its total assets in futures contracts on U.S. Treasury instruments and in Underlying ETFs that provide exposure to various investment asset classes (e.g., equities, fixed income, real estate, commodities, and currencies) and factors (e.g., value, momentum, and trend investing). The Fund invests in Underlying ETFs that seek exposure to undervalued markets, according to various valuation metrics, such as the price-to-earnings ratio, while seeking to avoid overvalued markets and securities through the use of systematic quantitative screens. The Fund also invests in Underlying ETFs with momentum and trend following strategies. Momentum and trend following strategies, both of which are based on quantitative and algorithmic models, attempt to (1) invest in assets when their prices are in an uptrend (i.e., prices are increasing over a specified time period) and/or increasing relative to the prices of other
assets, and (2) sell assets when their prices are in a downtrend (i.e., prices are decreasing over a specified time period) and/or decreasing relative to the prices of other assets.
Under normal market conditions, the Fund’s investment sub-adviser, Cambria Investment Management, L.P. (“Cambria” or the “Sub-Adviser”), selects Underlying ETFs that provide targeted notional exposures of approximately 60% of its portfolio to equity securities, 30% to fixed income securities, 20% to real assets, and 20% to various hedge and trend strategies. Examples of hedge and trend strategies include, but are not limited to, global macro strategies, long-short strategies, managed futures strategies, and relative strength strategies. Although Cambria seeks to allocate the Fund’s portfolio in accordance with its targeted exposures, targeted allocations may fluctuate in response to market conditions and investment opportunities.
Under normal market conditions, Cambria allocates approximately 50% of the Fund’s equity allocation to long positions in Underlying ETFs that invest primarily in the equity securities of foreign companies. The Fund defines foreign companies as those domiciled or listed and traded outside of the U.S. The Fund defines equity exposure to include Underlying ETFs that track the performance of stock indices, closed-end funds, real estate investment trusts (“REITs”), exchange-traded currency trusts, common stock, preferred stock and convertible securities of issuers of any market capitalization. The Fund defines fixed income exposure to include Underlying ETFs that track the performance of fixed income indices, exchange-traded notes, securities issued by the U.S. Government and its agencies, sovereign debt and corporate bonds of any credit quality, including high yield (or “junk”) bonds. The Fund defines real asset exposure to include Underlying ETFs that track the performance of real estate, commodity or currency indices.
The Fund may invest in instruments that are not Underlying ETFs, but which Cambria believes will help the Fund achieve its investment objective, including futures, options, swap contracts, cash and cash equivalents, and money market funds.
The Fund may sell a security when Cambria believes that the security is overvalued or better investment opportunities are available, to invest in cash and cash equivalents, or to meet redemptions. Cambria rebalances the Fund’s portfolio holdings to targeted allocations at least annually.
Strategy Portfolio Concentration [Text] rr_StrategyPortfolioConcentration Under normal market conditions, Cambria allocates approximately 50% of the Fund’s equity allocation to long positions in Underlying ETFs that invest primarily in the equity securities of foreign companies. T
Risk [Heading] rr_RiskHeading PRINCIPAL INVESTMENT RISKS
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading PERFORMANCE
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock Performance information is not provided below because the Fund has not yet been in operation for one full calendar year. When provided, the information will provide some indication of the risks of investing in the Fund by showing how the Fund’s average annual returns compare with a broad measure of market performance. Past performance does not necessarily indicate how the Fund will perform in the future. Updated performance information will be available at https://www.cambriafunds.com/.
Performance One Year or Less [Text] rr_PerformanceOneYearOrLess Performance information is not provided below because the Fund has not yet been in operation for one full calendar year.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress https://www.cambriafunds.com/
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance does not necessarily indicate how the Fund will perform in the future.
Cambria Endowment Style ETF | Risk Lose Money [Member]  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock An investor may lose money by investing in the Fund.
Cambria Endowment Style ETF | Risk Not Insured Depository Institution [Member]  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock An investment in the Fund is not a bank deposit and is not insured or guaranteed by the FDIC or any government agency.
Cambria Endowment Style ETF | Risks Of Investing In Underlying ETFs Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock Risks of Investing in Underlying ETFs. The Fund is a fund-of-funds and invests in Underlying ETFs. Underlying ETFs typically reflect the risks of the types of instruments in which the Underlying ETF invests. In addition, with such investments, the Fund bears its proportionate share of the fees and expenses of the Underlying ETF. As a result, the Fund’s operating expenses may be higher and performance may be lower than funds that invest directly in underlying the securities. Through its investments in Underlying ETFs, the Fund may be indirectly exposed to derivatives and leverage; allowing them to obtain the right to a return on stipulated capital that exceeds the amount paid or invested. Use of leverage is speculative and could magnify losses.
Cambria Endowment Style ETF | Quantitative Security Selection Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock Quantitative Security Selection Risk. Cambria uses quantitative techniques to generate the Fund’s investment allocations, including to the Underlying ETFs. The Fund may not perform as intended if Cambria relies on erroneous or outdated data from one or more third parties. Errors in data used in the quantitative model may occur from time to time and may not be identified and/or corrected before having an adverse impact on the Fund and its shareholders.
Cambria Endowment Style ETF | Risk Of Investing In The U.S Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock
Risk of Investing in the U.S. Certain changes in the U.S. economy, such as when the U.S. economy weakens or when its financial markets decline, may have an adverse effect on the securities to which the Fund has exposure.
Cambria Endowment Style ETF | Foreign Investment Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock Foreign Investment Risk. The Fund may invest in foreign securities indirectly through its investments in Underlying ETFs. Returns on indirect investments in foreign securities could be more volatile than, or trail the returns on, investments in U.S. securities. Exposures to foreign securities entail special risks, including risks due to: (i) differences in information available about foreign issuers; (ii) differences in investor protection standards in other jurisdictions; (iii) capital controls risks, including the risk of a foreign jurisdiction imposing restrictions on the ability to repatriate or transfer currency or other assets; (iv) political, diplomatic and economic risks; (v) regulatory risks; and (vi) foreign market and trading risks, including the costs of trading and risks of settlement in foreign jurisdictions. In addition, an Underlying ETF’s investments in securities denominated in other currencies could decline due to changes in local currency relative to the value of the U.S. dollar, which may affect the Underlying ETF’s and the Fund’s returns.
Cambria Endowment Style ETF | Commodity Investing Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock Commodity Investing Risk. The Fund may invest in commodity-related companies, commodity futures and physical commodities through the Underlying ETFs. Funds that include these investments may subject the Fund to greater volatility than investments in traditional asset classes. The commodities markets have experienced periods of extreme volatility. Similar future market conditions may result in rapid and substantial valuation increases or decreases in an Underlying ETF’s holdings.
Cambria Endowment Style ETF | Currency Strategies Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock Currency Strategies Risk. Currency exchange rates may fluctuate significantly over short periods of time and can be unpredictably affected by political developments or government intervention. Changes in currency exchange rates may directly affect the U.S. dollar value of an Underlying ETF that has exposure to global regions and foreign securities or may indirectly affect investments in Underlying ETFs with similar exposure.
Cambria Endowment Style ETF | Depositary Receipts Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock Depositary Receipts Risk. The risks of indirect investments through Underlying ETFs that have exposure to depositary receipts, are substantially similar to the risks of investing directly in foreign securities. 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.
Cambria Endowment Style ETF | Derivatives Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock
Derivatives Risk. A derivative is any financial instrument whose value is based on, and determined by, another asset, rate or index (i.e., stock options, futures contracts, caps, floors, etc.). When the Fund obtains exposure to derivatives it will be exposed to the risks of those derivatives. The use of derivatives for non-hedging purposes may be considered to carry more risk than other types of investments. Unfavorable changes in the value of the underlying asset, rate or index may cause sudden losses. Changes in
the value of a derivative may not correlate perfectly with the underlying asset, rate or index, and the Fund could lose more than the principal amount invested. Derivative instruments are subject to a number of risks including counterparty, liquidity, interest rate, market, credit and management risks, as well as the risk of improper valuation.
Cambria Endowment Style ETF | Options Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock Options Risk. Options are subject to correlation risk because there may be an imperfect correlation between the prices of options and movements in the price of the underlying securities. Options may expire unexercised, causing the Fund to lose the premium paid for them. The success of the Fund’s investment in options depends upon many factors, such as the price of the options which is a function of various factors that may change rapidly over time. If a counterparty defaults, the Fund’s only recourse will be to pursue contractual remedies against the counterparty, and the Fund may be unsuccessful in its pursuit. The Fund thus assumes the risk that it may be delayed in or prevented from obtaining payments owed to it pursuant to an over-the-counter options transaction.
Cambria Endowment Style ETF | Futures Contracts Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock Futures Contracts Risk. Risks associated with the use of futures contracts include the following: (i) an imperfect correlation between movements in prices of index futures contracts and movements in the value of the stock index that the instrument is designed to simulate; and (ii) the possibility of an illiquid secondary market for a futures contract and the resulting inability to close a position prior to its maturity date. Investments in futures may expose the Fund to leverage.
Cambria Endowment Style ETF | Leverage Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock Leverage Risk. Leverage risk refers to the potential for increased volatility and losses in a portfolio due to the use of derivatives or other financial instruments that may magnify gains and losses beyond the initial investment. The Fund will utilize derivatives, such as futures, options or swaps, to gain exposure to certain assets or markets with a smaller initial investment. While leveraging derivatives can amplify gains, it can also magnify losses significantly. Leverage could possibly create increased volatility for the Fund.
Cambria Endowment Style ETF | Fixed Income Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock Fixed Income Risk. The Fund will invest indirectly in fixed income securities through Underlying ETFs that have exposure to fixed income securities. A decline in an issuer’s credit rating and/or financial condition may cause such issuer’s fixed income securities to decrease in value while experiencing increased volatility and investment risk. During periods of falling interest rates, an issuer of a callable bond held by an Underlying ETF may “call” (or repay) the security before its stated maturity, and the Underlying ETF may have to reinvest the proceeds at lower interest rates, resulting in a decline in the Underlying ETF’s and the Fund’s income. The market value of a fixed income security generally changes in response to changes in interest rates and may change quickly and without warning in response to issuer defaults and changes in issuer credit ratings.
Cambria Endowment Style ETF | High Yield Securities Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock High Yield Securities Risk. The Fund may invest in high yield securities indirectly through Underlying ETFs. High yield securities and unrated securities of comparable credit quality are subject to the increased risk of an issuer’s inability to meet principal and interest payment obligations. High yield securities are subject to a greater risk of default and investments in them are inherently speculative. The secondary markets in which high yield securities are traded may be less liquid and more volatile than the market for higher grade securities.
Cambria Endowment Style ETF | Sovereign Debt Securities Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock Sovereign Debt Securities Risk. The Fund may invest directly in sovereign debt securities or indirectly through Underlying ETFs. Investments in sovereign debt obligations involve special risks not present in corporate debt obligations. The issuer of the sovereign debt or the authorities that control the repayment of the debt may be unable or unwilling to repay principal or interest when due, and the Fund may have limited recourse in the event of a default. During periods of economic uncertainty, the market prices of sovereign debt, and the Fund’s NAV, may be more volatile than prices of U.S. debt obligations. In the past, certain non-U.S. markets have encountered difficulties in servicing their debt obligations, withheld payments of principal and interest and declared moratoria on the payment of principal and interest on their sovereign debts. These risks increase for lower-rated and high yield debt securities, as discussed in this Prospectus.
Cambria Endowment Style ETF | Interest Rate Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock Interest Rate Risk. Changes in interest rates can result in losses for fixed-income and other securities. Specifically, for Underlying ETFs that hold fixed income securities, when interest rates rise, the market values of the fixed-income instruments normally decrease. Typically, the longer the maturity or duration of a fixed-income security, the greater the security’s sensitivity to changes in interest rates. Changes in monetary policy, government policy, government spending and inflation may affect the level of interest rates.
Cambria Endowment Style ETF | Value-Style Investing Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock Value Style Investing Risk. Value investments are subject to the risk that their intrinsic value may never be realized by the market. Value investments tend to underperform in growth markets.
Cambria Endowment Style ETF | Investment Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock 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 or 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.
Cambria Endowment Style ETF | Equity Investing Risk Member  
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Risk [Text Block] rr_RiskTextBlock 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 held by Underlying ETFs 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.
Cambria Endowment Style ETF | Momentum Investing Risk Member  
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Risk [Text Block] rr_RiskTextBlock Momentum Investing Risk. The Fund may invest in Underlying ETFs that may pursue momentum and trend following strategies that seek to identify securities that have had higher recent price performance compared to other securities. These securities may be more volatile than a broad cross-section of securities. High momentum may also be a sign that the securities’ prices have peaked. Momentum can turn quickly and cause significant variation from other types of investments. The Fund may experience significant losses if momentum stops, turns or otherwise behaves differently than predicted.
Cambria Endowment Style ETF | ETF Risks Member  
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Risk [Text Block] rr_RiskTextBlock
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, 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 Cboe BZX Exchange, Inc. (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.
•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).
Cambria Endowment Style ETF | ETF Risks, Authorized Participants, Market Makers and Liquidity Providers Concentration Risk Member  
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Risk [Text Block] rr_RiskTextBlock 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, 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.
Cambria Endowment Style ETF | ETF Risks, Premium-Discount Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock 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 Cboe BZX Exchange, Inc. (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.
Cambria Endowment Style ETF | ETF Risks, Cost Of Trading Risk Member  
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Risk [Text Block] rr_RiskTextBlock 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.
Cambria Endowment Style ETF | ETF Risks, Trading Risk Member  
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Risk [Text Block] rr_RiskTextBlock 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).
Cambria Endowment Style ETF | Real Estate Investment Risk Member  
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Risk [Text Block] rr_RiskTextBlock Real Estate Investments Risk. The Fund may purchase real estate investments through Underlying ETFs. The Fund is subject to the risks related to investments in real estate, including declines in the real estate market, 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.
Cambria Endowment Style ETF | REITs Risk Member  
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Risk [Text Block] rr_RiskTextBlock
REITs Risk. The Fund may purchase REITs indirectly through Underlying ETFs. In addition to the risks associated with the real estate industry, REITs are subject to additional risks, including those related to adverse governmental actions and 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. REITs are pooled investment vehicles with their own
fees and expenses and the Underlying ETF, as well as the Fund, will indirectly bear a proportionate share of those fees and expenses.
Cambria Endowment Style ETF | Underlying ETF Counterparty And Leverage Risk Member  
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Risk [Text Block] rr_RiskTextBlock Underlying ETF Counterparty and Leverage Risk. Through its investments in Underlying ETFs, the Fund may be indirectly exposed to additional risks. For example, if an Underlying ETF contracts with a counterparty, the Fund indirectly bears the risk that the counterparty fails to honor its obligations, causing the Underlying ETF, and therefore the Fund, to lose money and decline in value. Derivatives used by Underlying ETFs may include leverage, allowing them to obtain the right to a return on stipulated capital that exceeds the amount paid or invested. Use of leverage is speculative and could magnify losses. Although certain Underlying ETFs may comply with their obligations related to certain derivatives in accordance with Rule 18f-4 under the Investment Company Act of 1940 (the “1940 Act”), as applicable, the Fund’s value-at-risk limitations (if applicable) may not prevent losses greater than the value of those obligations. Other Underlying ETFs may not employ any risk management procedures at all, leading to even greater losses. Due to the Fund’s investments in Underlying ETFs, the value of the Fund’s Shares may be volatile.
Cambria Endowment Style ETF | Cash And Cash Equivalents Risk Member  
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Risk [Text Block] rr_RiskTextBlock Cash and Cash Equivalents Risk. At any time, the Fund may have significant investments in cash or cash equivalents. When a substantial portion of a portfolio is held in cash or cash equivalents, there is the risk that the value of the cash account, including interest, will not keep pace with inflation, thus reducing purchasing power over time.
Cambria Endowment Style ETF | Management Risk Member  
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Risk [Text Block] rr_RiskTextBlock Management Risk. The Fund is actively-managed and may not meet its investment objective based on the Adviser’s, Sub-Adviser’s, or portfolio managers’ success or failure to implement investment strategies for the Fund. The success of the Fund’s investment program depends largely on the investment techniques and risk analyses applied by the Adviser, Sub-Adviser, and the portfolio managers and the skill of the Adviser, Sub-Adviser, and/or portfolio managers in evaluating, selecting, and monitoring the Fund’s assets. The Fund could experience losses (realized and unrealized) if the judgment of the Adviser, Sub-Adviser, or portfolio managers about markets or sectors or the attractiveness of particular investments made for the Fund’s portfolio prove to be incorrect. It is possible the investment techniques and risk analyses employed on behalf of the Fund will not produce the desired results. Absent unusual circumstances (e.g., the Adviser determines a different security has higher liquidity but offers a similar investment profile as a recommended security), the Adviser will generally follow the Sub-Adviser’s investment recommendations to buy, hold, and sell securities and financial instruments.
Cambria Endowment Style ETF | New Fund Risk Member  
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Risk [Text Block] rr_RiskTextBlock New Fund Risk. The Fund is a recently organized investment company with no operating history. As a result, prospective investors have no 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.
Cambria Endowment Style ETF | Geopolitical/Natural Disaster Risks Member  
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Risk [Text Block] rr_RiskTextBlock Geopolitical/Natural Disaster Risks. The Fund’s investments are subject to geopolitical and natural disaster risks, such as war, terrorism, trade disputes, political or economic dysfunction within some nations, public health crises and related geopolitical events, as well as environmental disasters, epidemics and/or pandemics, which may add to instability in world economies and volatility in markets. The impact may be short-term or may last for extended periods.
Cambria Endowment Style ETF | Cambria Endowment Style ETF  
Prospectus [Line Items] rr_ProspectusLineItems  
Trading Symbol dei_TradingSymbol ENDW
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets none [3]
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.64% [3]
Expenses (as a percentage of Assets) rr_ExpensesOverAssets 0.64%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 65
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 $ 205
[1] Other Expenses are estimated for the current fiscal year.
[2] Other Expenses are estimated for the current fiscal year.
[3] Other Expenses and Acquired Fund Fees and Expenses are estimated for the current fiscal year. “Acquired Fund Fees and Expenses” (“AFFE”) are indirect fees and expenses that the Fund incurs from investing in the shares of other investment companies.