Objective, Primary [Text Block]

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Risk/Return [Heading]

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WBI Tactical High Income Shares

Objective [Heading]

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Investment Objective

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The WBI Tactical High Income Shares’ (the “Fund”) investment objectives are to seek high current income with the potential for long-term capital appreciation, while also seeking to protect principal during unfavorable market conditions.

Expense [Heading]

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Fees and Expenses of the Fund

Expense Narrative [Text Block]

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This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund (“Shares”). Investors purchasing Shares on a national securities exchange, national securities association, or over-the-counter trading system where Shares may trade from time to time (each, a “Secondary Market”) may be subject to customary brokerage commissions charged by their broker that are not reflected in the table set forth below.

Operating Expenses Caption [Text]

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Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment):

Portfolio Turnover [Heading]

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Portfolio Turnover.

Portfolio Turnover [Text Block]

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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 annual Fund operating expenses or in the example, affect the Fund’s performance. This rate excludes the value of portfolio securities received or delivered as a result of any in-kind creations or redemptions of the Fund’s Shares. For the fiscal year ended June 30, 2016, the Fund’s portfolio turnover rate was 328% of the average value of its portfolio.

Portfolio Turnover, Rate

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328.00%

Expense Exchange Traded Fund Commissions [Text]

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Investors purchasing Shares on a national securities exchange, national securities association, or over-the-counter trading system where Shares may trade from time to time (each, a “Secondary Market”) may be subject to customary brokerage commissions charged by their broker that are not reflected in the table set forth below.

Expenses Not Correlated to Ratio Due to Acquired Fund Fees [Text]

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The Total Annual Fund Operating Expenses in this fee table does not correlate to the expense ratio in the Fund’s “Financial Highlights” section of the Prospectus, which does not include Acquired Fund Fees and Expenses.

Expense Example [Heading]

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Example.

Expense Example Narrative [Text Block]

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This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other funds. Investors may pay brokerage commissions on their purchases and sales of exchange-traded fund shares, which are not reflected in the example.

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 at current levels. The return of 5% and estimated expenses are for illustration purposes only and should not be considered indicators of expected Fund expenses or performance, which may be greater or less than the estimates.

Expense Example by, Year, Caption [Text]

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Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Strategy [Heading]

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Principal Investment Strategies

Strategy Narrative [Text Block]

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Under normal market conditions, the Fund will invest at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in income-producing debt and equity securities of foreign and domestic issuers, including the securities of foreign and domestic corporate and government entities. These securities will be selected on the basis of the proprietary selection process (“Selection Process”), as described further below, of WBI Investments, Inc., the sub-advisor (“Sub-Advisor”) to the Fund and an affiliate of Millington Securities Inc., the advisor (“Advisor”). Also, these securities may exhibit other investment characteristics in addition to their income-producing properties that would make them suitable candidates for inclusion in other Funds or accounts advised by the Sub-Advisor.

Up to 20% of the Fund’s net assets may be invested in foreign and domestic equities, exchange-traded funds (“ETFs”), exchange-traded notes (“ETNs”), and/or in option strategies to enhance the Fund’s returns or to mitigate risk and volatility, and may be selected without regard to their ability to produce income. An ETN is an unsecured debt security that trades on an established exchange. Its underlying value is determined by reference to an index, commodity, interest rate, or other objectively determined reference. Equity option strategies used by the Fund for individual securities include writing (selling) covered calls, buying puts, and using combinations of calls and puts. The Fund may also use options on indices. The Fund may also invest in cash or cash equivalents as part of the normal operation of its investment process.

The types of debt securities in which the Fund will generally invest include corporate debt securities, U.S. Government securities, debt securities of foreign issuers, sovereign debt securities, U.S. government agency securities, high-yield bonds (also known as “junk bonds”), mortgage-backed securities (including sub-prime mortgages), ETFs, ETNs, and variable and floating rate securities. The Fund expects to invest in debt securities of all maturities, from less than one year up to thirty years, depending on the portfolio manager’s assessment of the risks and opportunities along the yield curve. (The yield curve refers to differences in yield among debt assets of varying maturities.) Debt securities will be selected on the basis of the Sub-Advisor’s assessment of the risks and opportunities available in the fixed income market using its proprietary portfolio selection process described briefly below.

The types of equity securities in which the Fund will generally invest include common stocks, preferred stocks, rights, warrants, convertibles, real estate investment trusts (“REITs”) and master limited partnerships (businesses organized as partnerships which trade on public exchanges). The Fund may invest in companies of any size market capitalization.

The Fund may invest without limitation in securities of foreign issuers, and up to 50% of its net assets in the securities of issuers located in emerging markets. The Fund may invest up to 80% of its net assets in high-yield bonds. The Fund may also invest in other investment companies, including other ETFs, up to the limitations contained in the Investment Company Act of 1940 (“1940 Act”) or in reliance on exemptions therefrom. Investments in other investment companies that invest predominantly in debt securities are considered debt securities and investments in other investment companies that invest predominantly in dividend-paying equity securities are considered dividend-paying equity securities for the purposes of the Fund’s income-producing securities target allocation.

The Sub-Advisor’s Selection Process used for the Fund attempts to provide consistent, attractive returns net of expenses with potentially less volatility and risk to capital than traditional approaches, whatever market conditions may be. This is the Fund’s definition of an absolute return approach to investment management, and such an approach is used (in part) to achieve the Fund’s investment objective. The Selection Process includes a buy discipline and a sell discipline.

The Fund uses a proprietary bond model created by the Sub-Advisor to assess the appropriate duration of its debt securities exposure. Duration is a measure of a fixed income security’s expected price sensitivity to changes in interest rates. Securities with longer durations are expected to experience greater price movements than securities with shorter duration for the same change in prevailing interest rates. A portion of the Fund’s bond exposure may also be invested to pursue perceived opportunities in varying segments of the global debt securities market.

The Sub-Advisor uses quantitative computer screening of fundamental stock information to evaluate domestic and foreign equity securities in an attempt to find companies with attractive yield characteristics for the selected universe of securities. Once securities are identified, an overlay of technical analysis confirms timeliness of security purchases. The Fund then adds qualifying securities using available cash within the parameters of the Fund’s target allocations. This systematic process of identifying, evaluating, and purchasing securities constitutes the Sub-Advisor’s buy discipline for the Fund.

Once securities are purchased, the Sub-Advisor maintains a strict sell discipline that attempts to control the effects of the volatility of each Fund asset on the Fund’s NAV. This sell discipline, together with the Selection Process, constitutes the Fund’s strategy to achieve its investment objective. If a Fund asset’s price stays within a range of acceptable prices, the Fund asset will continue to be held. If a Fund asset’s price falls below the bottom of an acceptable price range, the Fund asset will be sold. This results in a responsive process that actively adjusts the Fund’s allocation by causing it to become more fully invested or by raising cash to protect capital. The sell discipline operates independently of, and in addition to, any investment model changes. During periods of high market volatility, a significant amount of Fund holdings may be sold, resulting in a significant allocation to cash in the Fund. The Selection Process is run daily and cash will remain in the portfolio until a cash equivalent or a new security is purchased.

The Fund is an actively managed ETF. The Sub-Advisor actively manages the Fund’s portfolio. As a result, the portfolio turnover rate for the Fund may be high. The Sub-Advisor expects that the Fund’s investment strategy will result in a portfolio turnover rate in excess of 100% on an annual basis.

For additional information about the Fund’s principal investment strategies, see “Description of the Principal Strategies of the Funds”.

Risk [Heading]

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Principal Risks

Risk Narrative [Text Block]

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Investors in the Fund should be willing to accept a high degree of volatility in the price of the Fund’s Shares and the possibility of significant losses. An investment in the Fund involves a substantial degree of risk and the Fund does not represent a complete investment program. As with all investments, you may lose money in the Fund. An investment in the Fund is not a bank deposit, is not insured or guaranteed by the FDIC or any government agency, and may lose value. Therefore, you should consider carefully the following risks before investing in the Fund. A more complete discussion of Principal Risks is included under “Description of the Principal Risks of the Funds”.

Losing all or a portion of your investment is a risk of investing in the Fund. The following additional risks could affect the value of your investment:

Authorized Participant Concentration Risk – The Fund has a limited number of financial institutions that may act as Authorized Participants (“APs”) to create and redeem Fund shares. To the extent that these APs exit the business or are unable to process creation and redemption orders and no other AP is able to step forward to create and redeem in either of these cases, there may be a significantly diminished trading market for the Fund’s shares and such shares may trade at a discount to NAV and possibly face de-listing.

Market Risk – Either the stock market as a whole or the value of an investment held by the Fund may go down, resulting in a decrease in the market value or NAV of the Shares.

Active ETF Risk — There is no obligation by any market maker to make a market in the Fund’s shares or by any AP to submit creation or redemption orders. Decisions by market makers or APs to reduce or step away from the Fund in a time of market stress could inhibit the arbitrage process by which a relationship between the Fund’s NAV per share and the market trading prices of he shares is maintained. Thus, reduced effectiveness of the arbitrage function could result in Fund shares trading at a discount to NAV per share and also with greater than normal intra-day bid/ask spreads.

Management Risk – An investment in the Fund varies with the success and failure of the Sub-Advisor’s investment strategies and the Sub-Advisor’s research, analysis, and determination of portfolio securities. If the Sub-Advisor’s investment strategies, including its models, stop loss, and goal-setting process, do not produce the expected results, the market value or NAV of the Shares would decrease.

Debt Securities Risk – The market value of debt securities held by the Fund typically changes as interest rates change, as demand for the instruments changes, and as actual or perceived creditworthiness of an issuer changes. During periods of rising interest rates, the market value of the debt securities held by the Fund will generally decline. Credit risk is the risk that an issuer will not make timely payments of principal and interest. There is also the risk that an issuer may “call,” or repay, its high-yielding bonds before their maturity dates. Debt securities subject to prepayment can offer less potential for gains during a declining interest rate environment and similar or greater potential for loss in a rising interest rate environment. Limited trading opportunities for certain debt securities may make it more difficult to sell or buy a security at a favorable price or time. Because interest rates in the United States are at historical lows, the Fund may have an increased risk associated with debt securities and rising interest rates. Also, the risk of rising interest rates may result in less liquidity in debt markets overall, making it more difficult for the Fund to sell the instruments at or near the market value used to compute the Fund’s NAV.

High-Yield Securities Risk – The debt securities that are rated below investment grade (i.e., “junk bonds”) are subject to additional risk factors such as increased possibility of default liquidation of the security, and changes in value based on public perception of the issuer. High-yield securities are inherently speculative.

Equity Securities Risk – Common stocks are susceptible to general stock market fluctuations and to volatile increases and decreases in value as market confidence in and perceptions of their issuers change. If the Fund holds common stock or common stock equivalents of any given issuer, it will generally be exposed to greater risk than if the Fund held preferred stocks and debt obligations of such issuer.

Foreign and Emerging Market Securities Risk – Foreign investments may carry risks associated with investing outside the United States, such as currency fluctuation, economic or financial instability, lack of timely or reliable financial information, or unfavorable political or legal developments. Foreign securities can be more volatile than domestic (U.S.) securities. Securities markets of other countries are generally smaller than U.S. securities markets. Many foreign securities may also be less liquid than U.S. securities, which could affect the Fund’s investments. Investments in emerging markets may have more risk because the markets are less developed and less liquid as well as being subject to increased economic, political, regulatory, or other uncertainties. Also, as foreign and emerging markets decline, investors tend to exit these markets in unison.

Dividend Risk – The Fund’s investments in dividend-paying common stocks may cause the Fund to underperform funds that do not invest predominantly in dividend-paying common stocks during periods when dividend-paying stocks underperform other types of stocks. In addition, if stocks held by the Fund reduce or stop paying dividends, the Fund’s ability to generate income may be affected.

Growth Risk – Growth companies are those whose earnings growth potential appears to be greater than that of the market in general, and whose revenue growth is expected to continue for an extended period of time. Stocks of growth companies (or “growth securities”) have market values that may be more volatile than those of other types of investments. Growth companies typically do not pay a dividend, which can help cushion stock prices in market downturns and reduce potential losses. To the extent that the Fund invests in stocks of growth companies during periods when growth stocks are underperforming other types of stocks, the Fund may also underperform funds that favor other types of securities and its share price may be more volatile than it would if it did not include investments in growth stocks.

Value Risk – Value companies are those whose stocks appear to be priced at a material discount to the underlying value of the issuing company. The reason for the apparent discount may reflect an underlying business condition that is more serious or permanent than anticipated, and stocks of value companies may remain depressed for extended periods of time or may never realize their expected potential value. To the extent the Fund invests in value stocks, the Fund may underperform funds that do not invest in value stocks during periods when value stocks underperform other types of stocks.

Interest Rate Risk — The Fund’s performance may be adversely impacted when interest rates fall because the Fund may be exposed, directly or indirectly, to lower-yielding bonds. This risk may increase as bonds in the Fund’s portfolio mature. Interest rate risk is typically greater with respect to exposure to short-term bond (or short-term bond funds) and lower for long-term bond (or long-term bond funds).

Model Risk – The Fund’s investment process includes the use of proprietary models and analysis methods developed by the Sub-Advisor, and data provided by third parties. Third party data and information used in models and analysis is obtained from sources believed to be reliable, however inaccurate data could adversely affect the effectiveness of the resulting investment implementation on the Fund’s performance. There can be no assurance that any particular model or investment strategy, including those devised by the Sub-Advisor, will be profitable for the Fund, and may result in a loss of principal.

Small and Medium-Sized Companies Risk – Investing in securities of small and medium capitalization companies may involve greater volatility than investing in larger and more established companies because small and medium capitalization companies can be subject to more abrupt or erratic share price changes than larger, more established companies.

ETF and Other Investment Companies Risk – When the Fund invests in another ETF or other investment company (e.g., mutual fund, closed-end fund, business development company), it will bear additional expenses based on its pro rata share of such investment company’s operating expenses, including the potential duplication of management fees. The risk of owning an ETF or other investment company generally reflects the risks of owning the underlying securities and other assets held by the ETF or other investment company. The Fund also will incur brokerage costs when it purchases ETFs and other exchange-listed investment companies. Additionally, the Fund will be indirectly exposed to the risks of the portfolio assets held by an ETF or other investment company, including but not limited to those of ETNs, equity options, derivatives, currencies, index, leverage, and replication management.

Liquidity Risk –The Fund’s investments are subject to liquidity risk, which exists when an investment is or becomes difficult to purchase or sell. If a transaction is particularly large or if the relevant market is or becomes illiquid, it may not be possible to initiate a transaction or liquidate a position at an advantageous time or price, which may cause the Fund to suffer significant losses and difficulties in meeting redemptions. If a number of securities held by the Fund halt trading, such as due to an exchange’s limit-up, limit-down rules, it may have a cascading effect and cause the Fund to halt trading. Volatility in market prices will increase the risk of the Fund being subject to a trading halt.

Master Limited Partnership Risk – Investing in Master Limited Partnerships (“MLPs”) entails risk including fluctuations in energy prices, decreases in supply of or demand for energy commodities, and various other risks.

Equity Options Risk – Options on securities may be subject to greater fluctuations in value than an investment in the underlying securities. Purchasing and writing put and call options are highly specialized activities and entail greater than ordinary investment risks, including limiting potential for gains, increased sensitivity to changes in interest rates or to sudden fluctuations in market prices than conventional securities, and transaction costs.

Portfolio Turnover Risk – A high portfolio turnover rate (100% or more) has the potential to result in the realization and distribution to shareholders of higher capital gains, which may subject you to a higher tax liability.

Fundamental Business Risk – Companies with an apparently attractive financial condition and prospects for ongoing financial stability may experience adverse business conditions specific to their industry or enterprise that cause their financial condition and prospects to deteriorate. The Fund’s investments in companies that experience negative developments in their financial condition may lose value relative to the stocks of other companies, causing the Fund to underperform funds that do not invest in companies primarily on the basis of their underlying financial condition.

Exchange-Traded Note Risk – The value of an ETN may be influenced by the time remaining before its maturity, level of supply and demand for the ETN, volatility and lack of liquidity in underlying securities’ markets, changes in the applicable interest rates, changes in the issuer’s credit rating, and economic, legal, political, or geographic events that affect the referenced index. In addition, the notes issued by ETNs and held by a fund are unsecured debt of the issuer.

Fluctuation of Net Asset Value – The NAV of the Shares will fluctuate with changes in market value of the Fund’s holdings.

Mortgage-Backed Securities Risk – In addition to the general risks associated with debt securities as described, the structure of certain mortgage-backed securities may make their reaction to interest rates and other factors difficult to predict, which may cause their prices to be very volatile. In particular, the recent events related to the U.S. housing market has had a severe negative impact on the value of some mortgage-backed securities and resulted in an increased risk associated with investments in these securities. Sub-prime mortgages are those issued to borrowers who do not meet the lender’s prime credit worthiness standards. Subprime mortgages have had significantly higher default rates, which may result in foreclosure on the collateral property. Mortgage loans in default can suffer a significant decline in market value and may never be fully repaid. Amounts recovered through foreclosure and sale of the collateral property may not be sufficient to repay the full amount of the loan.

Shares are Not Individually Redeemable – Shares are only redeemable by the Fund at NAV if they are tendered in large blocks known as “Creation Units” which are expected to be worth in excess of $1 million each. Only APs may engage in such creation and redemption transactions directly with the Fund. Individual Shares may be sold on a stock exchange at their current market prices, which may be less, more, or equal to their NAV. There can be no assurance that an active trading market will be maintained for the Shares.

Trading Price Risk – Although it is expected that generally the exchange price of the Shares will approximate the Fund’s NAV, there may be times when the market price in the Secondary Market and the NAV vary significantly.

Counterparty Risk – Many of the protections afforded to participants on some organized exchanges, such as the performance guarantee of an exchange clearing house, are not available in connection with the over-the-counter (“OTC”) derivatives transactions. In those instances, another ETF holding such derivatives (in which the Fund invests) will be subject to the risk that its direct counterparty will not perform its obligations under the transactions and that such ETF will sustain losses.

REIT Risk – Investments in REITs will be subject to the risks associated with the direct ownership of real estate and annual compliance with tax rules applicable to REITs. Risks commonly associated with the direct ownership of real estate include fluctuations in the value of underlying properties, defaults by borrowers or tenants, changes in interest rates and risks related to general or local economic conditions. In addition, REITs have their own expenses, and therefore Fund shareholders will indirectly bear a proportionate share of the expenses of REITs in which the Fund invests.

Risk Lose Money [Text]

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As with all investments, you may lose money in the Fund.

Risk Not Insured Depository Institution [Text]

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An investment in the Fund is not a bank deposit, is not insured or guaranteed by the FDIC or any government agency, and may lose value.

Bar Chart and Performance Table [Heading]

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Performance Information

Performance Narrative [Text Block]

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The following performance information indicates some of the risks of investing in the Fund. The bar chart shows the Fund’s performance for the calendar year ended December 31, 2015. The table illustrates how the Fund’s average annual returns for the 1-year and since inception periods compare with those of a broad measure of market performance. The Fund’s past performance, before and after taxes, does not necessarily indicate how it will perform in the future. Updated performance information is available on www.wbishares.com, the Fund’s “Website”, or by calling the Fund toll-free at (855) WBI‑ETFS or (855) 924-3837.

Performance Information Illustrates Variability of Returns [Text]

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The following performance information indicates some of the risks of investing in the Fund.

Performance Availability Phone [Text]

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(855) 924-3837

Performance Availability Website Address [Text]

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www.wbishares.com

Performance Past Does Not Indicate Future [Text]

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The Fund’s past performance, before and after taxes, does not necessarily indicate how it will perform in the future.

Bar Chart [Heading]

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Calendar Year Total Returns

Bar Chart Closing [Text Block]

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For the year-to-date period ended September 30, 2016, the Fund’s total return was 1.51%. During the period of time shown in the bar chart, the Fund’s highest quarterly return was -0.01% for the quarter ended March 31, 2015, and the lowest quarterly return was -2.81% for the quarter ended September 30, 2015.

Year to Date Return, Label

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year-to-date

Bar Chart, Year to Date Return, Date

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Sep. 30, 2016

Bar Chart, Year to Date Return

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1.51%

Highest Quarterly Return, Label

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highest quarterly return

Highest Quarterly Return, Date

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Mar. 31, 2015

Highest Quarterly Return

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(0.01%)

Lowest Quarterly Return, Label

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lowest quarterly return

Lowest Quarterly Return, Date

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Sep. 30, 2015

Lowest Quarterly Return

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(2.81%)

Index No Deduction for Fees, Expenses, Taxes [Text]

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(reflects no deduction for fees, expenses, or taxes)

Caption

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Average Annual Total Returns For the Period Ended December 31, 2015

WBI Tactical High Income Shares | 50% Barclays U.S. Aggregate Bond Total Return Index and 50% S&P 500 Total Return Index (reflects no deduction for fees, expenses, or taxes)

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50% Barclays U.S. Aggregate Bond Total Return Index and 50% S&P 500 Total Return Index (reflects no deduction for fees, expenses, or taxes)

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1.21%

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2.83%

WBI Tactical High Income Shares | 30% MSCI World Index & 70% Barclays US Aggregate Index (reflects no deduction for fees, expenses, or taxes

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Aug. 25, 2014

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30% MSCI World Index & 70% Barclays US Aggregate Index (reflects no deduction for fees, expenses, or taxes

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0.50%

rr_AverageAnnualReturnSinceInception

0.80%

WBI Tactical High Income Shares | Barclays US Aggregate Index (reflects no deduction for fees, expenses, or taxes

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Aug. 25, 2014

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Barclays US Aggregate Index (reflects no deduction for fees, expenses, or taxes

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0.55%

rr_AverageAnnualReturnSinceInception

1.45%

WBI Tactical High Income Shares | WBI Tactical High Income Shares

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Aug. 25, 2014

Distribution and/or Service (12b-1) Fees

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Management Fee

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0.85%

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none

Other Expenses

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0.10%

Acquired Fund Fees and Expenses

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0.17%

Total Annual Fund Operating Expenses

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1.12%

^[1]

Expense Example, with Redemption, 1 Year

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$ 114

Expense Example, with Redemption, 3 Years

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356

Expense Example, with Redemption, 5 Years

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617

Expense Example, with Redemption, 10 Years

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$ 1,363

Annual Return 2015

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(4.17%)

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Return Before Taxes

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(4.17%)

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(3.30%)

WBI Tactical High Income Shares | WBI Tactical High Income Shares | After Taxes on Distributions

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Aug. 25, 2014

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Return After Taxes on Distributions

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(4.78%)

WBI Tactical High Income Shares | WBI Tactical High Income Shares | After Taxes on Distributions and Sale of Fund Shares

rr_AverageAnnualReturnSinceInception

(3.88%)

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Return After Taxes on Distributions and Sale of Fund Shares

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(2.11%)