485BPOS

As filed with the U.S. Securities and Exchange Commission on November 16, 2012

File Nos. 333-157876 and 811-22110

U.S. SECURITIES AND EXCHANGE COMMISSION

 Washington, D.C. 20549

FORM N-1A

REGISTRATION STATEMENT

UNDER

THE SECURITIES ACT OF 1933	x
Pre-Effective Amendment No.	¨
Post-Effective Amendment No. 54	x

and/or

REGISTRATION STATEMENT

UNDER

THE INVESTMENT COMPANY ACT OF 1940	x
Amendment No. 56	x

AdvisorShares Trust

(Exact Name of Registrant as Specified in Charter)

2 Bethesda Metro Center, Suite 1330, Bethesda, Maryland 20814

(Address of Principal Executive Offices, Zip Code)

(877) 843-3831

(Registrant’s Telephone Number, including Area Code)

Noah Hamman

AdvisorShares Investments, LLC

2 Bethesda Metro Center

Suite 1330

Bethesda, Maryland  20814

(Name and Address of Agent for Service)

Copy to:

W. John McGuire

Bingham McCutchen LLP

2020 K Street NW

Washington, DC 20006

It is proposed that this filing will become effective (check appropriate box):

x Immediately upon filing pursuant to paragraph (b) of Rule 485

¨ On (date) pursuant to paragraph (b)(1)(v) of Rule 485

¨ 60 days after filing pursuant to paragraph (a)(1) of Rule 485

¨ On (date) pursuant to paragraph (a)(1) of Rule 485

¨ 75 days after filing pursuant to paragraph (a)(2) of Rule 485

¨ On (date) pursuant to paragraph (a)(2) of Rule 485

EXPLANATORY NOTE

This Post-Effective Amendment No. 54 relates to the Accuvest Global Long Short ETF, Accuvest Global Opportunities ETF, Cambria Global Tactical ETF, Madrona Domestic ETF, Madrona International ETF, Madrona Global Bond ETF, Meidell Tactical Advantage ETF, Peritus High Yield ETF, Ranger Equity Bear ETF (formerly, the Active Bear ETF), Rockledge SectorSAM ETF, TrimTabs Float Shrink ETF, and WCM/BNY Mellon Focused Growth ADR ETF.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933 (the “Securities Act”) and the Investment Company Act of 1940, the Registrant certifies that it meets all of the requirements for effectiveness of this Registration Statement under Rule 485(b) under the Securities Act and has duly caused this Post-Effective Amendment No. 54 to Registration Statement No. 333-157876 to be signed on its behalf by the undersigned, duly authorized, in the City of Bethesda, State of Maryland on this 16th day of November, 2012.

AdvisorShares Trust

/s/ Noah Hamman

Noah Hamman

Chairman of the Board of Trustees,

Chief Executive Officer, Principal Financial Officer and President

Pursuant to the requirements of the Securities Act, this Post-Effective Amendment No. 54 to the Registration Statement has been signed below by the following persons in the capacity and on the date indicated.

Signature	Title	Date
/s/ Noah Hamman	Chairman of the Board of Trustees,	November 16, 2012
Noah Hamman	Chief Executive Officer,
	Principal Financial Officer and
	President
*	Trustee	November 16, 2012
Elizabeth Piper/Bach
*	Trustee	November 16, 2012
William G. McVay
*	Secretary, Chief Compliance	November 16, 2012
Dan Ahrens	Officer and Treasurer
/s/Noah Hamman
* Noah Hamman, Power of Attorney

XML

Label	Element	Value
Risk Return [Abstract]	rr_RiskReturnAbstract
ProspectusDate	rr_ProspectusDate	Oct. 29, 2012
Peritus High Yield ETF (Prospectus Summary) | Peritus High Yield ETF
Risk Return [Abstract]	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	PERITUS HIGH YIELD ETF
Objective [Heading]	rr_ObjectiveHeading	INVESTMENT OBJECTIVE
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The Peritus High Yield ETF (the "Fund") seeks high current income with a secondary goal of capital appreciation.
Expense [Heading]	rr_ExpenseHeading	FUND FEES AND EXPENSES
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. Most investors will incur customary brokerage commissions when buying or selling shares of the Fund, which are not reflected in the table below.
Shareholder Fees Caption [Text]	rr_ShareholderFeesCaption	SHAREHOLDER FEES (fees paid directly from your investment) None
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	PORTFOLIO TURNOVER
Portfolio Turnover [Text Block]	rr_PortfolioTurnoverTextBlock	The Fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in Total 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 in-kind creations or redemptions of the Fund's shares. During the most recent fiscal year ended June 30, 2012, the Fund's portfolio turnover rate was 80% of the average value of its portfolio.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	80.00%
Expense Exchange Traded Fund Commissions [Text]	rr_ExpenseExchangeTradedFundCommissions	Most investors will incur customary brokerage commissions when buying or selling shares of the Fund, which are not reflected in the table below.
Expense Example [Heading]	rr_ExpenseExampleHeading	EXAMPLE
Expense Example Narrative [Text Block]	rr_ExpenseExampleNarrativeTextBlock	This Example is intended to help you compare the cost of investing in the shares of the Fund with the cost of investing in other funds. This Example does not take into account creation or redemption transaction fees, or the brokerage commissions that you pay when purchasing or selling shares of the Fund. If commissions were included, your costs would be higher.    The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then sell all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. 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	Peritus I Asset Management, LLC (the "Sub-Advisor") seeks to achieve the Fund's investment objective by selecting a focused portfolio of high-yield debt securities (commonly referred to as "junk bonds"), which include senior and subordinated corporate debt obligations (such as bonds, debentures, notes and commercial paper). The Fund does not have any portfolio maturity limitation and may invest its assets in instruments with short-term, medium-term or long-term maturities. The Fund also may invest to a lesser extent in equity securities that the Sub-Advisor believes will yield high dividends or are otherwise consistent with the Fund's investment objective. In selecting securities for the Fund's portfolio, the Sub-Advisor, subject to the oversight of the Advisor and the Board of Trustees (the "Board"), performs an independent investment analysis of each issuer to determine its creditworthiness. The Sub-Advisor takes a deep value contrarian approach to the credit markets, foregoing relative value and new issue participation in favor of absolute returns. The Sub-Advisor focuses on the secondary market, predominantly investing in assets at a discount to par ($100), allowing for a potential opportunity to generate capital gains in addition to current yield. The Sub-Advisor believes that structural and technical inefficiencies exist in the secondary credit markets, which create tremendous investment opportunities, and that, by holding a diversified but limited number of securities, the portfolio will be constructed of securities that provide exposure to industries believed to offer the most value to the Fund.
Risk [Heading]	rr_RiskHeading	PRINCIPAL RISKS OF INVESTING IN THE FUND
Risk Narrative [Text Block]	rr_RiskNarrativeTextBlock	The Fund is subject to a number of risks that may affect the value of its shares, including: Credit Risk. The Fund is subject to the risk that an issuer of a fixed income security, such as a corporate bond, may be unable or unwilling to make interest and principal payments when due. The Fund is also subject to the related risk that the value of a fixed income security may decline because of concerns about the issuer's creditworthiness. Credit risk is heightened to the extent the Fund invests in high yield securities or junk bonds. Early Closing Risk. An unanticipated early closing of the NYSE Arca, Inc. (the "Exchange") may result in a shareholder's inability to buy or sell shares of the Fund on that day. Fixed Income Risk. The market value of fixed income investments in which the Fund may invest may change in response to interest rate changes and other factors. During periods of falling interest rates, the value of outstanding fixed income securities generally rise. Conversely, during periods of rising interest rates, the value of fixed income securities generally decline. High-Yield Risk. The Fund's investments in high yield securities and unrated securities of similar credit quality (commonly known as "junk bonds") may be subject to greater levels of interest rate, credit and liquidity risk than funds that do not invest in such securities. These securities are considered predominately speculative with respect to the issuer's continuing ability to make principal and interest payments. Issuer Risk. The value of a security may increase for a number of reasons which directly relate to the issuer, such as management performance, improved financial condition and increased demand of the issuer's goods or services. An increase in the value of the securities of an issuer or guarantor of a debt instrument may cause the value of your investment in the Fund to decrease. Liquidity Risk. Trading in shares of the Fund may be halted because of market conditions or for reasons that, in the view of the Exchange, make trading in shares inadvisable. Management Risk. The Sub-Advisor continuously evaluates the Fund's holdings, purchases and sales with a view to achieving the Fund's investment objective. However, the achievement of the stated investment objective cannot be guaranteed. The Sub-Advisor's judgments about the markets, the economy, or companies may not anticipate actual market movements, economic conditions or company performance, and these judgments may affect the return on your investment. Market Risk. Due to market conditions, the value of the Fund's investments may fluctuate significantly from day to day. This volatility may cause the value of your investment in the Fund to decrease.    Prepayment Risk. The Fund may invest in mortgage related securities, which may be paid off early if the borrower on the underlying mortgagee prepays the mortgage or refinances the mortgage prior to the maturity date. If interest rates are falling the Fund may have to reinvest the unanticipated proceeds at lower interest rates, resulting in a decline in the Fund's income. Trading Risk. Shares of the Fund may trade below their net asset value ("NAV"). The NAV of shares will fluctuate with changes in the market value of the Fund's holdings. In addition, although the Fund's shares are currently listed on the Exchange, there can be no assurance that an active trading market for shares will develop or be maintained. As with any fund, there is no guarantee that the Fund will achieve its investment objective.
Risk Lose Money [Text]	rr_RiskLoseMoney	As with any fund, there is no guarantee that the Fund will achieve its investment objective.
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	FUND PERFORMANCE
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	The bar chart and table that follow show how the Fund has performed on a calendar year basis and provide an indication of the risks of investing in the Fund. The table also shows how the Fund's performance compares to the Barclays U.S. High Yield Index, which is an unmanaged index considered representative of the universe of U.S. fixed rate, non-investment grade debt. Both the bar chart and the table assume the reinvestment of all dividends and distributions. Past performance (before and after taxes) does not necessarily indicate how the Fund will perform in the future. Updated performance information is available on the Fund's website at www.advisorshares.com.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	The bar chart and table that follow show how the Fund has performed on a calendar year basis and provide an indication of the risks of investing in the Fund.
Performance Availability Website Address [Text]	rr_PerformanceAvailabilityWebSiteAddress	www.advisorshares.com
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	Past performance (before and after taxes) does not necessarily indicate how the Fund will perform in the future.
Bar Chart Closing [Text Block]	rr_BarChartClosingTextBlock	The Fund's year-to-date total return as of September 30, 2012 was 12.40%. Best and Worst Quarter Returns (for the period reflected in the bar chart above)                  Return      Quarter/Year Highest Return     4.71%         1Q/2011 Lowest Return     -7.05%         3Q/2011
Index No Deduction for Fees, Expenses, Taxes [Text]	rr_IndexNoDeductionForFeesExpensesTaxes	Reflects no deduction for fees, expenses, or taxes
Performance Table Uses Highest Federal Rate	rr_PerformanceTableUsesHighestFederalRate	After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred	rr_PerformanceTableNotRelevantToTaxDeferred	Actual after-tax returns depend on your tax situation and may differ from those shown and are not relevant if you hold your shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table Explanation after Tax Higher	rr_PerformanceTableExplanationAfterTaxHigher	In some cases the return after taxes may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period.
Caption	rr_AverageAnnualReturnCaption	AVERAGE ANNUAL TOTAL RETURNS FOR THE PERIODS ENDING DECEMBER 31, 2011
Peritus High Yield ETF (Prospectus Summary) | Peritus High Yield ETF | Barclays U.S. High Yield Index
Risk Return [Abstract]	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	Barclays U.S. High Yield Index (Reflects no deduction for fees, expenses, or taxes)
1 Year	rr_AverageAnnualReturnYear01	4.98%
Since Inception	rr_AverageAnnualReturnSinceInception	6.33%
Inception Date	rr_AverageAnnualReturnInceptionDate	Nov. 30, 2010
Peritus High Yield ETF (Prospectus Summary) | Peritus High Yield ETF | Peritus High Yield ETF
Risk Return [Abstract]	rr_RiskReturnAbstract
MANAGEMENT FEES	rr_ManagementFeesOverAssets	1.10%
DISTRIBUTION (12b-1) FEES	rr_DistributionAndService12b1FeesOverAssets	none
OTHER EXPENSES	rr_OtherExpensesOverAssets	0.25%
TOTAL ANNUAL FUND OPERATING EXPENSES	rr_ExpensesOverAssets	1.35%
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	138
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	429
Expense Example, with Redemption, 5 Years	rr_ExpenseExampleYear05	742
Expense Example, with Redemption, 10 Years	rr_ExpenseExampleYear10	1,629
Annual Return 2011	rr_AnnualReturn2011	1.92%
Year to Date Return, Label	rr_YearToDateReturnLabel	year-to-date total return
Bar Chart, Year to Date Return, Date	rr_BarChartYearToDateReturnDate	Sep. 30, 2012
Bar Chart, Year to Date Return	rr_BarChartYearToDateReturn	12.40%
Highest Quarterly Return, Label	rr_HighestQuarterlyReturnLabel	Highest Return
Highest Quarterly Return, Date	rr_BarChartHighestQuarterlyReturnDate	Mar. 31, 2011
Highest Quarterly Return	rr_BarChartHighestQuarterlyReturn	4.71%
Lowest Quarterly Return, Label	rr_LowestQuarterlyReturnLabel	Lowest Return
Lowest Quarterly Return, Date	rr_BarChartLowestQuarterlyReturnDate	Sep. 30, 2011
Lowest Quarterly Return	rr_BarChartLowestQuarterlyReturn	(7.05%)
Label	rr_AverageAnnualReturnLabel	Return Before Taxes Based on NAV
1 Year	rr_AverageAnnualReturnYear01	1.92%
Since Inception	rr_AverageAnnualReturnSinceInception	2.94%
Inception Date	rr_AverageAnnualReturnInceptionDate	Nov. 30, 2010
Peritus High Yield ETF (Prospectus Summary) | Peritus High Yield ETF | Peritus High Yield ETF | After Taxes on Distributions
Risk Return [Abstract]	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	Return After Taxes on Distributions	[1]
1 Year	rr_AverageAnnualReturnYear01	(1.04%)
Since Inception	rr_AverageAnnualReturnSinceInception	0.04%
Inception Date	rr_AverageAnnualReturnInceptionDate	Nov. 30, 2010
Peritus High Yield ETF (Prospectus Summary) | Peritus High Yield ETF | Peritus High Yield ETF | After Taxes on Distributions and Sales
Risk Return [Abstract]	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	Return After Taxes on Distributions and Sale of Fund Shares	[1]
1 Year	rr_AverageAnnualReturnYear01	1.26%
Since Inception	rr_AverageAnnualReturnSinceInception	0.89%
Inception Date	rr_AverageAnnualReturnInceptionDate	Nov. 30, 2010

[1] After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on your tax situation and may differ from those shown and are not relevant if you hold your shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. In some cases the return after taxes may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period.

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TrimTabs Float Shrink ETF (Prospectus Summary) | TrimTabs Float Shrink ETF

TRIMTABS FLOAT SHRINK ETF

INVESTMENT OBJECTIVE

TrimTabs Float Shrink ETF (the "Fund") seeks to generate long-term returns in
excess of the total return of the Russell 3000® Index (the "Index"), with less
volatility than the Index.

FUND FEES AND EXPENSES

This table describes the fees and expenses that you may pay if you buy and hold
shares of the Fund. Most investors will incur customary brokerage commissions
when buying or selling shares of the Fund, which are not reflected in the table
below.

SHAREHOLDER FEES (fees paid directly from your investment) None

ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses		TrimTabs Float Shrink ETF
MANAGEMENT FEES		0.99%
DISTRIBUTION (12b-1) FEES		none
OTHER EXPENSES		1.35%
TOTAL ANNUAL FUND OPERATING EXPENSES		2.34%
FEE WAIVER AND/OR EXPENSE REIMBURSEMENT	[1]	1.35%
TOTAL ANNUAL FUND OPERATING EXPENSES AFTER FEE WAIVER AND/OR EXPENSE REIMBURSEMENT		0.99%

EXAMPLE

This Example is intended to help you compare the cost of investing in the shares
of the Fund with the cost of investing in other funds. This Example does not
take into account creation or redemption transaction fees, or the brokerage
commissions that you pay when purchasing or selling shares of the Fund. If
commissions were included, your costs would be higher.
  
The Example assumes that you invest $10,000 in the Fund for the time periods
indicated and then sell all of your shares at the end of those periods. The
Example also assumes that your investment has a 5% return each year and the
Fund's operating expenses remain the same. Although your actual costs may be
higher or lower, based on these assumptions your costs would be:

Expense Example (USD $)	Expense Example, with Redemption, 1 Year	Expense Example, with Redemption, 3 Years	Expense Example, with Redemption, 5 Years	Expense Example, with Redemption, 10 Years
TrimTabs Float Shrink ETF	101	601	1,128	2,574

PORTFOLIO TURNOVER

The Fund pays transaction costs, such as commissions, when it buys and sells
securities (or "turns over" its portfolio). A higher portfolio turnover may
indicate higher transaction costs and may result in higher taxes when Fund
shares are held in a taxable account. These costs, which are not reflected in
Total 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 in-kind creations or redemptions of the Fund's shares.
For the period from October 5, 2011, the Fund's commencement of operations,
through the most recent fiscal year ended, the Fund's portfolio turnover rate
was 201% of the average value of its portfolio.

PRINCIPAL INVESTMENT STRATEGIES

The Fund is an actively managed exchange-traded fund that seeks to achieve its
investment objective by primarily investing in the broad U.S. equity market, as
represented by the Index. The Fund seeks to achieve this goal by investing in
stocks with liquidity and fundamental characteristics that are historically
associated with superior long-term performance. Based on extensive historical
research, Trim Tabs Asset Management, LLC (the "Sub-Advisor") designed the
following quantitative stock selection rules to make allocation decisions and to
protect against dramatic over or under weighting of individual securities in the
Fund's portfolio.

Decile Ranking of Russell 3000® IndexStocks. The Sub-Advisor ranks stocks in the
Index by decile based on the following criteria:

   (i) the decrease in their outstanding shares over approximately the past 120
   days ("float shrink");

   (ii) the increase in free cash flow (the money available to the company that is
   not used to pay for its daily operations) over approximately the past 120 days;
   and

   (iii) the decrease in leverage over approximately the past 120 days. Leverage is
   measured as the ratio of total liabilities to total assets. The Sub-Advisor uses
   the relative decrease in leverage rather than amount of leverage itself as a
   criterion because the degree of leverage varies across industries.

The top decile of each respective ranking consists of the stocks of the companies
with (1) the strongest reduction in shares outstanding, (2) the strongest growth
in free cash flow, and (3) the largest decrease in leverage, respectively.

Stock Selection Algorithm. The Sub-Advisor uses an algorithm to give a relative
weight to the three decile rankings, combining them in a single ranking (combined
ranking). The algorithm places a higher weight on the float shrink ranking,
followed by the free cash flow ranking, followed by the leverage ranking. The Fund
under normal circumstances invests in 80 to 120 stocks from among the tenth
percentile of stocks with the highest combined ranking.

PRINCIPAL RISKS OF INVESTING IN THE FUND

The Fund is subject to a number of risks that may affect the value of its
shares, including:

Early Closing Risk. An unanticipated early closing of the NYSE Arca, Inc. (the
"Exchange") may result in a shareholder's inability to buy or sell shares of
the Fund on that day.

Equity Risk. The prices of equity securities rise and fall daily. These price
movements may result from factors affecting individual issuers, industries or
the stock market as a whole. In addition, equity markets tend to move in cycles
which may cause stock prices to fall over short or extended periods of time.
  
Large-Capitalization Securities Risk. The Fund may invest in large-capitalization
companies. Large- capitalization securities tend to go in and out of favor based
on market and economic conditions. During a period when the demand for
large-capitalization securities is less than for other types of investments --
small- capitalization securities, for instance -- the Fund's performance could
be reduced.

Liquidity Risk. Trading in shares of the Fund may be halted because of market
conditions or for reasons that, in the view of the Exchange, make trading in
shares inadvisable.

Management Risk. The Sub-Advisor continuously evaluates the Fund's holdings,
purchases and sales with a view to achieving the Fund's investment objective.
However, the achievement of the stated investment objective cannot be guaranteed.
The Sub-Advisor's judgments about the markets, the economy, or companies may not
anticipate actual market movements, economic conditions or company performance,
and these judgments may affect the return on your investment.

Market Risk. Due to market conditions, the Fund's investments may fluctuate
significantly from day to day. This volatility may cause the value of your
investment in the Fund to decrease.

Mid-Capitalization Securities Risk. The Fund may invest in mid-capitalization
companies. Mid-size companies may be more volatile and more likely than
large-capitalization companies to have limited product lines, markets or
financial resources, or depend on a few key employees. Returns on investments in
stocks of mid-size companies could trail the returns on investments in stocks of
larger or smaller companies.

Small-Capitalization Securities Risk. The Fund may invest in small-capitalization
companies. Security prices of small capitalization companies may be more volatile
than those of larger companies and therefore the Fund's share price may be more
volatile than those of funds that invest a larger percentage of their assets in
securities issued by larger-capitalization companies.

Trading Risk. Shares of the Fund may trade below their net asset value ("NAV").
The NAV of shares will fluctuate with changes in the market value of the Fund's
holdings. In addition, although the Fund's shares are currently listed on the
Exchange, there can be no assurance that an active trading market for shares
will develop or be maintained.

As with any fund, there is no guarantee that the Fund will achieve its investment
objective.

FUND PERFORMANCE

A comparison of the Fund's performance with that of a broad measure of market
performance may give some indication of the risks of an investment in the Fund;
however, the Fund is new and, therefore, does not have a performance history
for a full calendar year. Of course, once the Fund has performance, this past
performance (before and after taxes) does not necessarily indicate how the Fund
will perform in the future.

Updated performance information is available on the Fund's website at
www.advisorshares.com.

[1] AdvisorShares Investments, LLC (the "Advisor") has contractually agreed to reduce its fees and/or reimburse expenses in order to keep net expenses (excluding interest, taxes, brokerage commissions, Acquired Fund Fees and Expenses, and extraordinary expenses) from exceeding 0.99% of the Fund's average daily net assets for a year from the date of this Prospectus and for an indefinite period thereafter subject to annual approval by the AdvisorShares Trust Board of Trustees (the "Board"). The expense limitation agreement (i) may be terminated at any time by the Board and (ii) will be terminated upon termination of the investment advisory agreement between the Advisor and the Fund.

XML

Label	Element	Value
Risk Return [Abstract]	rr_RiskReturnAbstract
ProspectusDate	rr_ProspectusDate	Oct. 29, 2012
Meidell Tactical Advantage ETF (Prospectus Summary) | Meidell Tactical Advantage ETF
Risk Return [Abstract]	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	MEIDELL TACTICAL ADVANTAGE ETF
Objective [Heading]	rr_ObjectiveHeading	INVESTMENT OBJECTIVE
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The Meidell Tactical Advantage ETF (the "Fund") seeks to provide long-term capital appreciation
Objective, Secondary [Text Block]	rr_ObjectiveSecondaryTextBlock	with a secondary emphasis on capital preservation.
Expense [Heading]	rr_ExpenseHeading	FUND FEES AND EXPENSES
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. Most investors will incur customary brokerage commissions when buying or selling shares of the Fund, which are not reflected in the table below.
Shareholder Fees Caption [Text]	rr_ShareholderFeesCaption	SHAREHOLDER FEES (fees paid directly from your investment) None
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	PORTFOLIO TURNOVER
Portfolio Turnover [Text Block]	rr_PortfolioTurnoverTextBlock	The Fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in Total 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 in-kind creations or redemptions of the Fund's shares. During the most recent fiscal year, the Fund's portfolio turnover rate was 817% of the average value of its portfolio.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	817.00%
Expense Exchange Traded Fund Commissions [Text]	rr_ExpenseExchangeTradedFundCommissions	Most investors will incur customary brokerage commissions when buying or selling shares of the Fund, which are not reflected in the table below.
Expenses Not Correlated to Ratio Due to Acquired Fund Fees [Text]	rr_ExpensesNotCorrelatedToRatioDueToAcquiredFundFees	The Total Annual Fund Operating Expenses and Total Annual Fund Operating Expenses After Fee Waiver in this fee table may not correlate to the expense ratios in the Fund's financial highlights (and the Fund's financial statements) because the financial highlights include only the Fund's direct operating expenses and do not include Acquired Fund Fees and Expenses, which are fees and expenses incurred indirectly by the Fund through its investments in the Acquired Funds.
Expense Example [Heading]	rr_ExpenseExampleHeading	EXAMPLE
Expense Example Narrative [Text Block]	rr_ExpenseExampleNarrativeTextBlock	This Example is intended to help you compare the cost of investing in the shares of the Fund with the cost of investing in other funds. This example does not take into account creation or redemption transaction fees, or the brokerage commissions that you pay when purchasing or selling shares of the Fund. If the commissions were included, your costs would be higher.    The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then sell all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. 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 in other exchange traded funds (the "Underlying ETFs") that offer diversified exposure to global regions, countries, styles (market capitalization, value, growth, etc.) or sectors, and other exchange-traded products ("ETPs"), including, but not limited to, exchange-traded notes ("ETNs"), exchange-traded currency trusts, and closed-end funds. The Fund primarily invests in U.S.-listed domestic and foreign equity, fixed income, and commodity ETFs and ETPs. American Wealth Management (the "Sub-Advisor") seeks to achieve the Fund's investment objective by managing a tactical strategy that has the ability to dynamically rebalance the Fund's portfolio from as much as 100% equity assets to 100% fixed income assets or cash and cash equivalents depending on market trends. This is a long-only tactical strategy that seeks to minimize portfolio losses by rotating out of higher volatility assets and into lower volatility assets when the Sub-Advisor believes there are significant risks in the equity markets. Risk management is an integral part of the Sub-Advisor's investment strategy. The Fund will not invest in leveraged or inverse exchange-traded funds. The Sub-Advisor uses a quantitative tactical methodology to identify the Underlying ETFs and ETPs believed to be participating in long-term "durable trends" within the market. This model enables the Sub- Advisor to evaluate, rank and select the appropriate mix of investments in Underlying ETFs and ETPs given market conditions.
Risk [Heading]	rr_RiskHeading	PRINCIPAL RISKS OF INVESTING IN THE FUND
Risk Narrative [Text Block]	rr_RiskNarrativeTextBlock	The Fund is subject to a number of risks that may affect the value of its shares, including:    Allocation Risk. The Fund's particular allocations may have a significant effect on the Fund's performance. Allocation risk is the risk that the selection of Underlying ETFs and ETPs and the allocation of assets among such Underlying ETFs and ETPs will cause the Fund to underperform other funds with a similar investment objective that do not allocate their assets in the same manner or the market as a whole.    Early Closing Risk. An unanticipated early closing of the NYSE Arca, Inc. may result in a shareholder's inability to buy or sell shares of the Fund on that day.    ETN Risk. ETNs are senior, unsecured unsubordinated debt securities issued by an underwriting bank that are designed to provide returns that are linked to a particular benchmark less investor fees. ETNs have a maturity date and generally, are backed only by the creditworthiness of the issuer. As a result, the value of an ETN may be influenced by time to maturity, level of supply and demand for the ETN, volatility and lack of liquidity in the underlying market (e.g., the commodities market), changes in the applicable interest rates, and changes in the issuer's credit rating and economic, legal, political or geographic events that affect the referenced market. ETNs also may be subject to commodities market risk and credit risk.    Liquidity Risk. Trading in shares of the Fund may be halted because of market conditions or for reasons that, in the view of the Exchange, make trading in shares inadvisable. In addition, trading in listed securities is subject to trading halts caused by extraordinary market volatility pursuant to "circuit breaker" rules. The Fund's investments in ETNs and certain other ETPs may be subject to restrictions on the amount and timing of any redemptions, which may adversely affect the value of the Fund's portfolio holdings. Market Risk. Due to market conditions, the Fund's investments may fluctuate significantly from day to day. This volatility may cause the value of your investment in the Fund to decrease. Portfolio Turnover Risk. The Fund's investment strategy may result in relatively high portfolio turnover, which may result in increased transaction costs and may lower Fund performance. Tax Risk. In order to qualify for the favorable U.S. federal income tax treatment accorded to "regulated investment companies," the Fund must derive at least 90% of its gross income in each taxable year from certain categories of income ("qualifying income"). Certain of the Fund's investments may generate income that is not qualifying income. If the Fund were to fail to meet the qualifying income test and fail to qualify as a regulated investment company, it would be taxed in the same manner as an ordinary corporation, and distributions to its shareholders would not be deductible by the Fund in computing its taxable income. Trading Risk. Shares of the Fund may trade below their net asset value ("NAV"). The NAV of shares will fluctuate with changes in the market value of the Fund's holdings. In addition, although the Fund's shares are currently listed on the Exchange, there can be no assurance that an active trading market for shares will develop or be maintained. Underlying Fund Investment Risk. Through its investments in the Underlying ETFs or ETPs, the Fund will be subject to the risks associated with the Underlying ETFs' or ETPs' investments, including the possibility that the value of the securities held by an Underlying ETF or ETP could decrease. These risks include any combination of the risks described below, although the Fund's exposure to a particular risk will be proportionate to the Fund's overall allocation and Underlying ETF or ETP's asset allocation.      Commodities Risk. The commodities industries can be significantly affected by      the level and volatility of commodity prices; world events including               international monetary and political developments; import controls and worldwide   competition; exploration and production spending; and tax and other government     regulations and economic conditions.                                               Concentration Risk. An Underlying ETF or ETP may, at various times, concentrate   in the securities of a particular industry, group of industries, or sector, and   when a fund is overweighted in an industry, group of industries, or sector, it     may be more sensitive to any single economic, business, political, or regulatory   occurrence than a fund that is not overweighted in an industry, group of           industries, or sector.                                                             Credit Risk. Certain of the Underlying ETFs and ETPs are subject to the risk       that a decline in the credit quality of a portfolio investment could cause the     Underlying ETF's or ETP's share price to fall. The Underlying ETFs and ETPs        could lose money if the issuer or guarantor of a portfolio investment or the       counterparty to a derivatives contract fails to make timely principal or            interest payments or otherwise honor its obligations.                              Emerging Markets Risk. There is an increased risk of price volatility associated   with an Underlying ETF's or ETP's investments in emerging market countries,        which may be magnified by currency fluctuations relative to the U.S. dollar.       Equity Risk. The prices of equity securities in which an Underlying ETF invests   rise and fall daily. These price movements may result from factors affecting       individual companies, industries or the securities market as a whole.              Fixed Income Risk. An Underlying ETF's or ETP's investments in fixed income        securities are subject to the risk that the securities may be paid off earlier     or later than expected. Either situation could cause the Underlying ETF or ETP     to hold securities paying lower- than-market rates of interest, which could hurt   the Fund's yield or share price.                                                   Foreign Currency Risk. Currency movements may negatively impact the value of an   Underlying ETF or ETP security even when there is no change in the value of the   security in the issuer's home country. Under normal circumstances, the             Underlying ETFs and ETPs do not intend to hedge against the risk of currency       exchange rate fluctuations, but some Underlying ETFs and ETPs may reserve the      right to do so if there is extreme volatility in currency exchange rates.          Foreign Securities Risk. An Underlying ETF's or ETP's investments in securities   of foreign issuers involve certain risks including, but not limited to, risks of   adverse changes in foreign economic, political, regulatory and other conditions,   or changes in currency exchange rates or exchange control regulations (including   limitations on currency movements and exchanges). In certain countries, legal      remedies available to investors may be more limited than those available with      respect to investments in the United States. In addition, the securities of some   foreign companies may be less liquid and, at time, more volatile than securities   of comparable U.S. companies.                                                      "Growth" Investing Risk. An Underlying ETF or ETP may pursue a "growth style"   of  investing. Growth stocks can be volatile for several reasons. Since those          companies usually invest a high portion of earnings in their businesses, they      may lack the dividends of value stocks that can cushion stock prices in a          falling market. The prices of growth stocks are based largely on projections of   the issuer's future earnings and revenues. If a company's earnings or revenues     fall short of expectations, its stock price may fall dramatically.                 High-Yield Risk. An Underlying ETF or ETP may invest in high-yield securities     and unrated securities of similar credit quality (commonly known as "junk          bonds"). High-yield securities generally pay higher yields (greater income) than   investment in higher quality securities; however, high-yield securities and junk   bonds may be subject to greater levels of interest rate, credit and liquidity      risk than funds that do not invest in such securities, and are considered          predominantly speculative with respect to an issuer's continuing ability to make   principal and interest payments.                                                   Income Risk. An Underlying ETF or ETP may derive dividend and interest income      from certain of its investments. This income can vary widely over the short- and   long-term. If prevailing market interest rates drop, distribution rates of an      Underlying ETF's or ETP's income producing investments may decline which then      may adversely affect the Fund's value.                                             Interest Rate Risk. An Underlying ETF's or ETP's investments in fixed income       securities are subject to the risk that interest rates rise and fall over time.   As with any investment whose yield reflects current interest rates, an             Underlying ETF's or ETP's yield will change over time. During periods when         interest rates are low, an Underlying ETF's or ETP's yield (and total return)      also may be low. To the extent that the investment adviser (or sub-adviser) of     an Underlying ETF or ETP anticipates interest rate trends imprecisely, the         Underlying ETF or ETP could miss yield opportunities or its share price could      fall.                                                                                 Investment Risk. An investment in an Underlying ETF or ETP is not a bank deposit   and is not insured or guaranteed by the Federal Deposit Insurance Corporation or   any other government agency. The Fund may experience losses with respect to its   investment in an Underlying ETF or ETP. Further, there is no guarantee that an     Underlying ETF or ETP will be able to achieve its objective.                       Large-Capitalization Risk. An Underlying ETF or ETP may invest in large-cap       companies. Returns on investments in stocks of large U.S. companies could trail   the returns on investments in stocks of smaller and mid-sized companies.           Mid-Capitalization Risk. An Underlying ETF or ETP may invest in mid-cap           companies. Mid-sized companies may be more volatile and more likely than           large-capitalization companies to have limited product lines, markets or           financial resources, or depend on a few key employees. Returns on investments   in stocks of mid-size companies could trail the returns on investments in stocks of   larger or smaller companies.                                                       Small-Capitalization Risk. An Underlying ETF or ETP may invest in small-cap       companies. Small- capitalization companies may be more vulnerable than larger,     more established organizations to adverse business or economic developments.   In particular, small- capitalization companies may have limited product lines,        markets, and financial resources and may be dependent upon a relatively small      management group. These securities may be listed on an exchange or trade           over-the-counter, and may or may not pay dividends. During a period when           small-cap stocks fall behind other types of investments - large-cap stocks, for   instance - the Underlying ETF's or ETP's performance could be reduced.             "Value" Investing Risk. Because it may invest in value stocks, the Fund could      suffer losses or produce poor results relative to other funds, even in a rising   market, if the Sub-Advisor's assessment of a company's value or prospects for      exceeding earnings expectations or market conditions is wrong.                   As with any fund, there is no guarantee that the Fund will achieve its investment objective.
Risk Lose Money [Text]	rr_RiskLoseMoney	As with any fund, there is no guarantee that the Fund will achieve its investment objective.
Risk Not Insured Depository Institution [Text]	rr_RiskNotInsuredDepositoryInstitution	An investment in an Underlying ETF or ETP is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	FUND PERFORMANCE
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	A comparison of the Fund's performance with that of a broad measure of market performance may give some indication of the risks of an investment in the Fund; however, the Fund is new and, therefore, does not have a performance history for a full calendar year. Of course, once the Fund has performance, this past performance (before and after taxes) does not necessarily indicate how the Fund will perform in the future.    Updated performance information is available on the Fund's website at www.advisorshares.com.
Performance One Year or Less [Text]	rr_PerformanceOneYearOrLess	A comparison of the Fund's performance with that of a broad measure of market performance may give some indication of the risks of an investment in the Fund; however, the Fund is new and, therefore, does not have a performance history for a full calendar year.
Performance Availability Website Address [Text]	rr_PerformanceAvailabilityWebSiteAddress	www.advisorshares.com
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	Of course, once the Fund has performance, this past performance (before and after taxes) does not necessarily indicate how the Fund will perform in the future.
Meidell Tactical Advantage ETF (Prospectus Summary) | Meidell Tactical Advantage ETF | Meidell Tactical Advantage ETF
Risk Return [Abstract]	rr_RiskReturnAbstract
MANAGEMENT FEES	rr_ManagementFeesOverAssets	1.20%
DISTRIBUTION (12b-1) FEES	rr_DistributionAndService12b1FeesOverAssets	none
OTHER EXPENSES	rr_OtherExpensesOverAssets	2.49%
ACQUIRED FUND FEES AND EXPENSES	rr_AcquiredFundFeesAndExpensesOverAssets	0.23%	[1]
TOTAL ANNUAL FUND OPERATING EXPENSES	rr_ExpensesOverAssets	3.92%	[2]
FEE WAIVER AND/OR EXPENSE REIMBURSEMENT	rr_FeeWaiverOrReimbursementOverAssets	(2.34%)	[3]
TOTAL ANNUAL FUND OPERATING EXPENSES AFTER FEE WAIVER AND/OR EXPENSE REIMBURSEMENT	rr_NetExpensesOverAssets	1.58%	[2]
Fee Waiver or Reimbursement over Assets, Date of Termination	rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination	a year from the date of this Prospectus and for an indefinite period thereafter subject to annual approval by the AdvisorShares Trust Board of Trustees (the "Board").
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	160
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	979
Expense Example, with Redemption, 5 Years	rr_ExpenseExampleYear05	1,815
Expense Example, with Redemption, 10 Years	rr_ExpenseExampleYear10	3,988

[1] As a shareholder in certain Underlying ETFs (the "Acquired Funds"), the Fund will indirectly bear its proportionate share of the fees and expenses of the Acquired Funds. "Acquired Fund Fees and Expenses" do not reflect the operating expenses of exchange-traded products in which the fund invests that are not investment companies, including exchange-traded notes and certain exchange-traded pooled investment vehicles not registered pursuant to the Investment Company Act of 1940, as amended (the "1940 Act").

[2] The Total Annual Fund Operating Expenses and Total Annual Fund Operating Expenses After Fee Waiver in this fee table may not correlate to the expense ratios in the Fund's financial highlights (and the Fund's financial statements) because the financial highlights include only the Fund's direct operating expenses and do not include Acquired Fund Fees and Expenses, which are fees and expenses incurred indirectly by the Fund through its investments in the Acquired Funds.

[3] AdvisorShares Investments, LLC (the "Advisor") has contractually agreed to reduce its fees and/or reimburse expenses in order to keep net expenses (excluding interest, taxes, brokerage commissions, Acquired Fund Fees and Expenses, and extraordinary expenses) from exceeding 1.35% of the Fund's average daily net assets for a year from the date of this Prospectus and for an indefinite period thereafter subject to annual approval by the AdvisorShares Trust Board of Trustees (the "Board"). This agreement is limited to the Fund's direct operating expenses and, therefore, does not apply to "Acquired Fund Fees and Expenses." The expense limitation agreement (i) may be terminated at any time by the Board, and (ii) will be terminated upon termination of the investment advisory agreement between the Advisor and the Fund.

XML

Label	Element	Value
Risk Return [Abstract]	rr_RiskReturnAbstract
ProspectusDate	rr_ProspectusDate	Oct. 29, 2012
WCM/BNY Mellon Focused Growth ADR ETF (Prospectus Summary) | WCM/BNY Mellon Focused Growth ADR ETF
Risk Return [Abstract]	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	WCM / BNY MELLON FOCUSED GROWTH ADR ETF
Objective [Heading]	rr_ObjectiveHeading	INVESTMENT OBJECTIVE
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The WCM/BNY Mellon Focused Growth ADR ETF (the "Fund") seeks long-term capital appreciation above international benchmarks such as the BNY Mellon Classic ADR Index, the Fund's primary benchmark, and the MSCI EAFE Index, the Fund's secondary benchmark.
Expense [Heading]	rr_ExpenseHeading	FUND FEES AND EXPENSES
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. Most investors will incur customary brokerage commissions when buying or selling shares of the Fund, which are not reflected in the table below.
Shareholder Fees Caption [Text]	rr_ShareholderFeesCaption	SHAREHOLDER FEES (fees paid directly from your investment) None
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	PORTFOLIO TURNOVER
Portfolio Turnover [Text Block]	rr_PortfolioTurnoverTextBlock	The Fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in Total 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 in-kind creations or redemptions of the Fund's shares. During the most recent fiscal year, the Fund's portfolio turnover rate was 16% of the average value of its portfolio.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	16.00%
Expense Exchange Traded Fund Commissions [Text]	rr_ExpenseExchangeTradedFundCommissions	Most investors will incur customary brokerage commissions when buying or selling shares of the Fund, which are not reflected in the table below.
Expense Example [Heading]	rr_ExpenseExampleHeading	EXAMPLE
Expense Example Narrative [Text Block]	rr_ExpenseExampleNarrativeTextBlock	This Example is intended to help you compare the cost of investing in the shares of the Fund with the cost of investing in other funds. This Example does not take into account creation or redemption transaction fees, or the brokerage commissions that you pay when purchasing or selling shares of the Fund. If commissions were included, your costs would be higher.    The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then sell all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. 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	WCM Investment Management (the "Sub-Advisor"), the sub-adviser to the Fund, seeks to achieve the Fund's investment objective by selecting primarily a portfolio of U.S.-traded securities of non-U.S. organizations, most often American Depositary Receipts ("ADRs"), included in the BNY Mellon Classic ADR Index. The Fund's investment focus follows the Sub-Advisor's core philosophy of investing in industry-leading non-U.S. organizations led by visionary management teams with sound business strategies. The Sub-Advisor believes that these companies often dominate their industry and are likely to continue that domination well into the future. The Sub-Advisor establishes guidelines for sector and industry emphasis and develops the portfolio of the Fund. The Sub-Advisor analyzes the major trends in the global economy in order to identify those economic sectors and industries that are most likely to benefit. Typical themes incorporated in their investment process include demographics, global commerce, outsourcing, the growing global middle class and the proliferation of technology. A portfolio strategy is then implemented that will best capitalize on these investment themes and subsequent expected growth of the underlying assets.
Risk [Heading]	rr_RiskHeading	PRINCIPAL RISKS OF INVESTING IN THE FUND
Risk Narrative [Text Block]	rr_RiskNarrativeTextBlock	The Fund is subject to a number of risks that may affect the value of its shares, including: American Depositary Receipt (ADR) Risk. ADRs have the same currency and economic risks as the underlying non-U.S. shares they represent. They are affected by the risks associated with non-U.S. securities, such as changes in political or economic conditions of other countries and changes in the exchange rates of foreign currencies. In addition, investments in ADRs may be less liquid than the underlying securities in their primary trading market. Early Closing Risk. An unanticipated early closing of the NYSE Arca, Inc. (the "Exchange") may result in a shareholder's inability to buy or sell shares of the Fund on that day. Emerging Markets Risk. Certain of the Fund's investments will expose the Fund's portfolio to the risks of investing in emerging markets. Emerging markets, which consist of countries or markets with low to middle income economies as classified by the World Bank and other countries or markets with similar characteristics as determined by the Advisor, can be subject to greater social, economic, regulatory, and political uncertainties and can be extremely volatile. Equity Risk. The prices of equity securities rise and fall daily. These price movements may result from factors affecting individual issuers, industries or the stock market as a whole. In addition, equity markets tend to move in cycles which may cause stock prices to fall over short or extended periods of time. Foreign Currency Risk. The Fund's exposure to foreign currencies subjects the Fund to the risk that those currencies will decline in value relative to the U.S. dollar. Foreign Investment Risk. The Fund's investments in securities of foreign issuers, including ADRs, may involve certain risks that are greater than those associated with investments in securities of U.S. issuers. These include risks of adverse changes in foreign economic, political, regulatory and other conditions; changes in currency exchange rates or exchange control regulations (including limitations on currency movements and exchanges); differing accounting, auditing, financial reporting and legal standards and practices; differing securities market structures; and higher transaction costs.    Investment Risk. As with all investments, an investment in the Fund is subject to investment risk. Investors in the Fund could lose money, including the possible loss of the entire principal amount of an investment, over short or even long periods of time. Large-Capitalization Risk. The Fund may invest in large-capitalization companies. Large-capitalization securities tend to go in and out of favor based on market and economic conditions. During a period when the demand for large-capitalization securities is less than for other types of investments -- small-capitalization securities, for instance -- the Fund's performance could be reduced. Liquidity Risk. Trading in shares of the Fund may be halted because of market conditions or for reasons that, in the view of the Exchange, make trading in shares inadvisable. Market Risk. Due to market conditions, the value of the Fund's investments may fluctuate significantly from day to day. This volatility may cause the value of your investment in the Fund to decrease. Trading Risk. Shares of the Fund may trade below their net asset value ("NAV"). The NAV of shares will fluctuate with changes in the market value of the Fund's holdings. In addition, although the Fund's shares are currently listed on the Exchange, there can be no assurance that an active trading market for shares will develop or be maintained. As with any fund, there is no guarantee that the Fund will achieve its investment objective.
Risk Lose Money [Text]	rr_RiskLoseMoney	Investors in the Fund could lose money, including the possible loss of the entire principal amount of an investment, over short or even long periods of time.
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	FUND PERFORMANCE
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	The bar chart and table that follow show how the Fund has performed on a calendar year basis and provide an indication of the risks of investing in  the Fund. The table also shows how the Fund's performance compares to the  MSCI EAFE Index, which is an unmanaged free float-adjusted market capitalization index that is designed to measure the equity market performance of developed markets, excluding the U.S. & Canada. Both the bar chart and the table assume the reinvestment of all dividends and distributions. Past performance (before and after taxes) does not necessarily indicate how the Fund will perform in the future. Updated performance information is available on the Fund's website at www.advisorshares.com.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	The bar chart and table that follow show how the Fund has performed on a calendar year basis and provide an indication of the risks of investing in the Fund.
Performance Availability Website Address [Text]	rr_PerformanceAvailabilityWebSiteAddress	www.advisorshares.com
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	Past performance (before and after taxes) does not necessarily indicate how the Fund will perform in the future.
Bar Chart Closing [Text Block]	rr_BarChartClosingTextBlock	The Fund's year-to-date total return as of September 30, 2012 was 7.23%. Best and Worst Quarter Returns (for the period reflected in the bar chart above)                  Return      Quarter/Year Highest Return     8.42%         4Q/2011 Lowest Return    -17.90%         3Q/2011
Index No Deduction for Fees, Expenses, Taxes [Text]	rr_IndexNoDeductionForFeesExpensesTaxes	Reflects no deduction for fees, expenses, or taxes
Performance Table Uses Highest Federal Rate	rr_PerformanceTableUsesHighestFederalRate	After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred	rr_PerformanceTableNotRelevantToTaxDeferred	Actual after-tax returns depend on your tax situation and may differ from those shown and are not relevant if you hold your shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table Explanation after Tax Higher	rr_PerformanceTableExplanationAfterTaxHigher	In some cases the return after taxes may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period.
Performance Table Closing [Text Block]	rr_PerformanceTableClosingTextBlock	Updated performance information is available on the Fund's website at www.advisorshares.com.
Caption	rr_AverageAnnualReturnCaption	AVERAGE ANNUAL TOTAL RETURNS FOR THE PERIODS ENDING DECEMBER 31, 2011
WCM/BNY Mellon Focused Growth ADR ETF (Prospectus Summary) | WCM/BNY Mellon Focused Growth ADR ETF | MSCI EAFE Index
Risk Return [Abstract]	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	MSCI EAFE Index (Reflects no deduction for fees, expenses, or taxes)
1 Year	rr_AverageAnnualReturnYear01	(12.14%)
Since Inception	rr_AverageAnnualReturnSinceInception	2.67%
Inception Date	rr_AverageAnnualReturnInceptionDate	Jul. 20, 2010
WCM/BNY Mellon Focused Growth ADR ETF (Prospectus Summary) | WCM/BNY Mellon Focused Growth ADR ETF | WCM/BNY Mellon Focused Growth ADR ETF
Risk Return [Abstract]	rr_RiskReturnAbstract
MANAGEMENT FEES	rr_ManagementFeesOverAssets	0.75%
DISTRIBUTION (12b-1) FEES	rr_DistributionAndService12b1FeesOverAssets	none
OTHER EXPENSES	rr_OtherExpensesOverAssets	3.42%
TOTAL ANNUAL FUND OPERATING EXPENSES	rr_ExpensesOverAssets	4.17%
FEE WAIVER AND/OR EXPENSE REIMBURSEMENT	rr_FeeWaiverOrReimbursementOverAssets	(2.92%)	[1]
TOTAL ANNUAL FUND OPERATING EXPENSES AFTER FEE WAIVER AND/OR EXPENSE REIMBURSEMENT	rr_NetExpensesOverAssets	1.25%
Fee Waiver or Reimbursement over Assets, Date of Termination	rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination	a year from the date of this Prospectus and for an indefinite period thereafter subject to annual approval by the AdvisorShares Trust Board of Trustees (the "Board").
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	128
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	1,001
Expense Example, with Redemption, 5 Years	rr_ExpenseExampleYear05	1,889
Expense Example, with Redemption, 10 Years	rr_ExpenseExampleYear10	4,174
Annual Return 2011	rr_AnnualReturn2011	(5.81%)
Year to Date Return, Label	rr_YearToDateReturnLabel	year-to-date total return
Bar Chart, Year to Date Return, Date	rr_BarChartYearToDateReturnDate	Sep. 30, 2012
Bar Chart, Year to Date Return	rr_BarChartYearToDateReturn	7.23%
Highest Quarterly Return, Label	rr_HighestQuarterlyReturnLabel	Highest Return
Highest Quarterly Return, Date	rr_BarChartHighestQuarterlyReturnDate	Dec. 31, 2011
Highest Quarterly Return	rr_BarChartHighestQuarterlyReturn	8.42%
Lowest Quarterly Return, Label	rr_LowestQuarterlyReturnLabel	Lowest Return
Lowest Quarterly Return, Date	rr_BarChartLowestQuarterlyReturnDate	Sep. 30, 2011
Lowest Quarterly Return	rr_BarChartLowestQuarterlyReturn	(17.90%)
Label	rr_AverageAnnualReturnLabel	Return Before Taxes Based on NAV
1 Year	rr_AverageAnnualReturnYear01	(5.81%)
Since Inception	rr_AverageAnnualReturnSinceInception	8.37%
Inception Date	rr_AverageAnnualReturnInceptionDate	Jul. 20, 2010
WCM/BNY Mellon Focused Growth ADR ETF (Prospectus Summary) | WCM/BNY Mellon Focused Growth ADR ETF | WCM/BNY Mellon Focused Growth ADR ETF | After Taxes on Distributions
Risk Return [Abstract]	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	Return After Taxes on Distributions	[2]
1 Year	rr_AverageAnnualReturnYear01	(5.81%)
Since Inception	rr_AverageAnnualReturnSinceInception	8.33%
Inception Date	rr_AverageAnnualReturnInceptionDate	Jul. 20, 2010
WCM/BNY Mellon Focused Growth ADR ETF (Prospectus Summary) | WCM/BNY Mellon Focused Growth ADR ETF | WCM/BNY Mellon Focused Growth ADR ETF | After Taxes on Distributions and Sales
Risk Return [Abstract]	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	Return After Taxes on Distributions and Sale of Fund Shares	[2]
1 Year	rr_AverageAnnualReturnYear01	(3.53%)
Since Inception	rr_AverageAnnualReturnSinceInception	7.21%
Inception Date	rr_AverageAnnualReturnInceptionDate	Jul. 20, 2010

[1] AdvisorShares Investments, LLC (the "Advisor") has contractually agreed to reduce its fees and/or reimburse expenses in order to keep net expenses (excluding interest, taxes, brokerage commissions, Acquired Fund Fees and Expenses, and extraordinary expenses) from exceeding 1.25% of the Fund's average daily net assets for a year from the date of this Prospectus and for an indefinite period thereafter subject to annual approval by the AdvisorShares Trust Board of Trustees (the "Board"). The expense limitation agreement (i) may be terminated at any time by the Board and (ii) will be terminated upon termination of the investment advisory agreement between the Advisor and the Fund.

[2] After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on your tax situation and may differ from those shown and are not relevant if you hold your shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. In some cases the return after taxes may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period.

XML

Label	Element	Value
Risk Return [Abstract]	rr_RiskReturnAbstract
ProspectusDate	rr_ProspectusDate	Oct. 29, 2012
Madrona International ETF (Prospectus Summary) | Madrona International ETF
Risk Return [Abstract]	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	MADRONA INTERNATIONAL ETF
Objective [Heading]	rr_ObjectiveHeading	INVESTMENT OBJECTIVE
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The Madrona International ETF (the "Fund") seeks to provide long-term capital appreciation above the capital appreciation of its international benchmarks, such as the MSCI EAFE Index, the Fund's primary benchmark, and the BNY Mellon Classic ADR Index, the Fund's secondary benchmark.
Expense [Heading]	rr_ExpenseHeading	FUND FEES AND EXPENSES
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. Most investors will incur customary brokerage commissions when buying or selling shares of the Fund which are not reflected in the table below.
Shareholder Fees Caption [Text]	rr_ShareholderFeesCaption	SHAREHOLDER FEES (fees paid directly from your investment) None
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	PORTFOLIO TURNOVER
Portfolio Turnover [Text Block]	rr_PortfolioTurnoverTextBlock	The Fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect Fund performance. This rate excludes the value of portfolio securities received or delivered as a result of in-kind creations or redemptions of the Fund's shares. During the most recent fiscal year, the Fund's portfolio turnover rate was 110% of the average value of its portfolio.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	110.00%
Expense Exchange Traded Fund Commissions [Text]	rr_ExpenseExchangeTradedFundCommissions	Most investors will incur customary brokerage commissions when buying or selling shares of the Fund which are not reflected in the table below.
Expense Example [Heading]	rr_ExpenseExampleHeading	EXAMPLE
Expense Example Narrative [Text Block]	rr_ExpenseExampleNarrativeTextBlock	This Example is intended to help you compare the cost of investing in the shares of the Fund with the cost of investing in other funds. This example does not take into account creation or redemption transaction fees, or the brokerage commissions that you pay when purchasing or selling shares of the Fund. If the commissions were included, your costs would be higher.    The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then sell all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. 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	Madrona Funds, LLC (the "Sub-Advisor") seeks to achieve the Fund's investment objective by selecting a portfolio primarily composed of American Depository Receipts ("ADRs") from among the largest issuers of Europe, Australasia and the Far East ("EAFE") and Canada. The Fund's portfolio may also include U.S.-traded securities of large-capitalization non-U.S. issuers that provide exposure to certain markets deemed to be emerging markets. Securities are selected, weighted and sold based upon the Sub-Advisor's proprietary investment process. The Sub-Advisor's investment committee meets on a bi-weekly basis to monitor the portfolio and make allocation decisions. The investment committee uses third-party analyst research and a proprietary fundamental process to make allocation decisions.
Risk [Heading]	rr_RiskHeading	PRINCIPAL RISKS OF INVESTING IN THE FUND
Risk Narrative [Text Block]	rr_RiskNarrativeTextBlock	The Fund is subject to a number of risks that may affect the value of its shares, including: American Depositary Receipt (ADR) Risk. ADRs have the same currency and economic risks as the underlying non-U.S. shares they represent. They are affected by the risks associated with non-U.S. securities, such as changes in political or economic conditions of other countries and changes in the exchange rates of foreign currencies. In addition, investments in ADRs may be less liquid than the underlying securities in their primary trading market. Currency Risk. As a result of the Fund's investments in securities receiving revenues in, foreign currencies, the Fund will be subject to currency risk. This is the risk that currencies to which the Fund is exposed will decline in value relative to the U.S. dollar, which may cause the dollar value of an investment in the Fund to be adversely affected. Early Closing Risk. An unanticipated early closing of the NYSE Arca, Inc. (the "Exchange") may result in a shareholder's inability to buy or sell shares of the Fund on that day. Emerging Markets Risk. Certain of the Fund's investments will expose the Fund's portfolio to the risks of investing in emerging markets. Emerging markets, which consist of countries or markets with low to middle income economies as classified by the World Bank and other countries or markets with similar characteristics as determined by the Advisor, can be subject to greater social, economic, regulatory, and political uncertainties and can be extremely volatile. Equity Risk. The prices of equity securities rise and fall daily. These price movements may result from factors affecting individual issuers, industries or the stock market as a whole. In addition, equity markets tend to move in cycles which may cause stock prices to fall over short or extended periods of time. Foreign Investment Risk. The Fund's investments in securities of foreign issuers, including ADRs, may involve certain risks that are greater than those associated with investments in securities of U.S. issuers. These include risks of adverse changes in foreign economic, political, regulatory and other conditions; changes in currency exchange rates or exchange control regulations (including limitations on currency movements and exchanges); differing accounting, auditing, financial reporting and legal standards and practices; differing securities market structures; and higher transaction costs. Geographic Concentration Risk. To the extent that the Fund's investments are concentrated in a particular country or region, the Fund will be susceptible to loss due to adverse market, political, regulatory, and geographic events affecting that country or region. The Fund has concentrated investment exposure to the countries and regions listed below.     Asia. While certain Asian economies are exemplars of growth and development     others have been and continue to be subject, to some extent, to over-extension     of credit, currency devaluations and restrictions, high unemployment, high     inflation, decreased exports and economic recessions.     Canada. The Canadian economy is susceptible to adverse changes in certain     commodities markets, including those related to the agricultural and mining     industries. It is also heavily dependent on trading with key partners. Any     reduction in this trading may adversely affect the Canadian economy.        Europe. The European economy is diverse and includes both large, competitive     economies and small, struggling economies. The European economy is vulnerable to     decreasing imports or exports, changes in governmental regulations on trade,     changes in the exchange rate of the euro and recessions in EU economies.     United States. The United States is a significant trading partner of many     emerging markets in which the Fund invests. The United States economy has     traditionally been considered to be one of the most stable and productive     economies in the world. However, the recent financial crisis, declining U.S.     imports, new trade regulations, changes in exchange rates, and increasing public     debt pose concerns for many of the United States' trading partners that depend     on its historically high levels of consumer spending and foreign investment. Large-Cap Risk. Large-cap stocks tend to go in and out of favor based on market and economic conditions. During a period when the demand for large-cap stocks is less than for other types of investments -- small-cap stocks, for instance -- the Fund's performance could be reduced. Liquidity Risk. Trading in shares of the Fund may be halted because of market conditions or for reasons that, in the view of the Exchange, make trading in shares inadvisable. Market Risk. Due to market conditions, the Fund's investments may fluctuate significantly from day to day. This volatility may cause the value of your investment in the Fund to decrease. Trading Risk. Shares of the Fund may trade below their NAV. The NAV of shares will fluctuate with changes in the market value of the Fund's holdings. The trading prices of shares will fluctuate in accordance with changes in NAV as well as market supply and demand. As with any fund, there is no guarantee that the Fund will achieve its investment objective.
Risk Lose Money [Text]	rr_RiskLoseMoney	As with any fund, there is no guarantee that the Fund will achieve its investment objective.
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	FUND PERFORMANCE
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	A comparison of the Fund's performance with that of a broad measure of market performance may give some indication of the risks of an investment in the Fund; however, the Fund is new and, therefore, does not have a performance history for a full calendar year. Of course, once the Fund has performance, this past performance (before and after taxes) does not necessarily indicate how the Fund will perform in the future. Updated performance information is available on the Fund's website at www.advisorshares.com.
Performance One Year or Less [Text]	rr_PerformanceOneYearOrLess	A comparison of the Fund's performance with that of a broad measure of market performance may give some indication of the risks of an investment in the Fund; however, the Fund is new and, therefore, does not have a performance history for a full calendar year.
Performance Availability Website Address [Text]	rr_PerformanceAvailabilityWebSiteAddress	www.advisorshares.com
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	Of course, once the Fund has performance, this past performance (before and after taxes) does not necessarily indicate how the Fund will perform in the future.
Madrona International ETF (Prospectus Summary) | Madrona International ETF | Madrona International ETF
Risk Return [Abstract]	rr_RiskReturnAbstract
MANAGEMENT FEES	rr_ManagementFeesOverAssets	0.80%
DISTRIBUTION (12b-1) FEES	rr_DistributionAndService12b1FeesOverAssets	none
OTHER EXPENSES	rr_OtherExpensesOverAssets	0.74%
TOTAL ANNUAL FUND OPERATING EXPENSES	rr_ExpensesOverAssets	1.54%
FEE WAIVER AND/OR EXPENSE REIMBURSEMENT	rr_FeeWaiverOrReimbursementOverAssets	(0.29%)	[1]
TOTAL ANNUAL FUND OPERATING EXPENSES AFTER FEE WAIVER AND/OR EXPENSE REIMBURSEMENT	rr_NetExpensesOverAssets	1.25%
Fee Waiver or Reimbursement over Assets, Date of Termination	rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination	a year from the date of this Prospectus and for an indefinite period thereafter subject to annual approval by the Board.
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	128
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	459
Expense Example, with Redemption, 5 Years	rr_ExpenseExampleYear05	813
Expense Example, with Redemption, 10 Years	rr_ExpenseExampleYear10	1,812

[1] AdvisorShares Investments, LLC ("the Advisor") has contractually agreed to reduce its fees and/or reimburse expenses to keep the Fund's Total Annual Fund Operating Expenses (excluding interest, taxes, brokerage commissions, Acquired Fund Fees and Expenses, and extraordinary expenses) from exceeding 1.25% of the Fund's average daily net assets for a year from the date of this Prospectus and for an indefinite period thereafter subject to annual approval by the Board . The expense limitation agreement (i) may be terminated at any time by the Board, and (ii) will be terminated upon termination of the investment advisory agreement between the Advisor and the Fund.

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WCM/BNY Mellon Focused Growth ADR ETF (Prospectus Summary) | WCM/BNY Mellon Focused Growth ADR ETF

WCM / BNY MELLON FOCUSED GROWTH ADR ETF

INVESTMENT OBJECTIVE

The WCM/BNY Mellon Focused Growth ADR ETF (the "Fund") seeks long-term capital
appreciation above international benchmarks such as the BNY Mellon Classic ADR
Index, the Fund's primary benchmark, and the MSCI EAFE Index, the Fund's
secondary benchmark.

FUND FEES AND EXPENSES

This table describes the fees and expenses that you may pay if you buy and hold
shares of the Fund. Most investors will incur customary brokerage commissions
when buying or selling shares of the Fund, which are not reflected in the table
below.

SHAREHOLDER FEES (fees paid directly from your investment) None

ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses		WCM/BNY Mellon Focused Growth ADR ETF
MANAGEMENT FEES		0.75%
DISTRIBUTION (12b-1) FEES		none
OTHER EXPENSES		3.42%
TOTAL ANNUAL FUND OPERATING EXPENSES		4.17%
FEE WAIVER AND/OR EXPENSE REIMBURSEMENT	[1]	2.92%
TOTAL ANNUAL FUND OPERATING EXPENSES AFTER FEE WAIVER AND/OR EXPENSE REIMBURSEMENT		1.25%

EXAMPLE

This Example is intended to help you compare the cost of investing in the shares
of the Fund with the cost of investing in other funds. This Example does not
take into account creation or redemption transaction fees, or the brokerage
commissions that you pay when purchasing or selling shares of the Fund. If
commissions were included, your costs would be higher.
  
The Example assumes that you invest $10,000 in the Fund for the time periods
indicated and then sell all of your shares at the end of those periods. The
Example also assumes that your investment has a 5% return each year and that the
Fund's operating expenses remain the same. Although your actual costs may be
higher or lower, based on these assumptions your costs would be:

Expense Example (USD $)	Expense Example, with Redemption, 1 Year	Expense Example, with Redemption, 3 Years	Expense Example, with Redemption, 5 Years	Expense Example, with Redemption, 10 Years
WCM/BNY Mellon Focused Growth ADR ETF	128	1,001	1,889	4,174

PORTFOLIO TURNOVER

The Fund pays transaction costs, such as commissions, when it buys and sells
securities (or "turns over" its portfolio). A higher portfolio turnover may
indicate higher transaction costs and may result in higher taxes when Fund
shares are held in a taxable account. These costs, which are not reflected in
Total 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 in-kind creations or redemptions of the Fund's shares.
During the most recent fiscal year, the Fund's portfolio turnover rate was 16%
of the average value of its portfolio.

PRINCIPAL INVESTMENT STRATEGIES

WCM Investment Management (the "Sub-Advisor"), the sub-adviser to the Fund,
seeks to achieve the Fund's investment objective by selecting primarily a
portfolio of U.S.-traded securities of non-U.S. organizations, most often
American Depositary Receipts ("ADRs"), included in the BNY Mellon Classic
ADR Index. The Fund's investment focus follows the Sub-Advisor's core
philosophy of investing in industry-leading non-U.S. organizations led by
visionary management teams with sound business strategies. The Sub-Advisor
believes that these companies often dominate their industry and are likely
to continue that domination well into the future. The Sub-Advisor establishes
guidelines for sector and industry emphasis and develops the portfolio of
the Fund. The Sub-Advisor analyzes the major trends in the global economy
in order to identify those economic sectors and industries that are most
likely to benefit. Typical themes incorporated in their investment process
include demographics, global commerce, outsourcing, the growing global
middle class and the proliferation of technology. A portfolio strategy is
then implemented that will best capitalize on these investment themes and
subsequent expected growth of the underlying assets.

PRINCIPAL RISKS OF INVESTING IN THE FUND

The Fund is subject to a number of risks that may affect the value of its
shares, including:

American Depositary Receipt (ADR) Risk. ADRs have the same currency and economic
risks as the underlying non-U.S. shares they represent. They are affected by the
risks associated with non-U.S. securities, such as changes in political or
economic conditions of other countries and changes in the exchange rates of
foreign currencies. In addition, investments in ADRs may be less liquid than the
underlying securities in their primary trading market.

Early Closing Risk. An unanticipated early closing of the NYSE Arca, Inc. (the
"Exchange") may result in a shareholder's inability to buy or sell shares of the
Fund on that day.

Emerging Markets Risk. Certain of the Fund's investments will expose the Fund's
portfolio to the risks of investing in emerging markets. Emerging markets, which
consist of countries or markets with low to middle income economies as classified
by the World Bank and other countries or markets with similar characteristics as
determined by the Advisor, can be subject to greater social, economic, regulatory,
and political uncertainties and can be extremely volatile.

Equity Risk. The prices of equity securities rise and fall daily. These price
movements may result from factors affecting individual issuers, industries or
the stock market as a whole. In addition, equity markets tend to move in cycles
which may cause stock prices to fall over short or extended periods of time.

Foreign Currency Risk. The Fund's exposure to foreign currencies subjects the
Fund to the risk that those currencies will decline in value relative to the
U.S. dollar.

Foreign Investment Risk. The Fund's investments in securities of foreign issuers,
including ADRs, may involve certain risks that are greater than those associated
with investments in securities of U.S. issuers. These include risks of adverse
changes in foreign economic, political, regulatory and other conditions; changes
in currency exchange rates or exchange control regulations (including limitations
on currency movements and exchanges); differing accounting, auditing, financial
reporting and legal standards and practices; differing securities market structures;
and higher transaction costs.
  
Investment Risk. As with all investments, an investment in the Fund is subject
to investment risk. Investors in the Fund could lose money, including the
possible loss of the entire principal amount of an investment, over short or
even long periods of time.

Large-Capitalization Risk. The Fund may invest in large-capitalization companies.
Large-capitalization securities tend to go in and out of favor based on market and
economic conditions. During a period when the demand for large-capitalization
securities is less than for other types of investments -- small-capitalization
securities, for instance -- the Fund's performance could be reduced.

Liquidity Risk. Trading in shares of the Fund may be halted because of market
conditions or for reasons that, in the view of the Exchange, make trading in
shares inadvisable.

Market Risk. Due to market conditions, the value of the Fund's investments may
fluctuate significantly from day to day. This volatility may cause the value of
your investment in the Fund to decrease.

Trading Risk. Shares of the Fund may trade below their net asset value ("NAV").
The NAV of shares will fluctuate with changes in the market value of the Fund's
holdings. In addition, although the Fund's shares are currently listed on the
Exchange, there can be no assurance that an active trading market for shares
will develop or be maintained.

As with any fund, there is no guarantee that the Fund will achieve its
investment objective.

FUND PERFORMANCE

The bar chart and table that follow show how the Fund has performed on a calendar
year basis and provide an indication of the risks of investing in  the Fund. The
table also shows how the Fund's performance compares to the  MSCI EAFE Index,
which is an unmanaged free float-adjusted market capitalization index that is
designed to measure the equity market performance of developed markets, excluding
the U.S. & Canada. Both the bar chart and the table assume the reinvestment of all
dividends and distributions. Past performance (before and after taxes) does not
necessarily indicate how the Fund will perform in the future.

Updated performance information is available on the Fund's website at
www.advisorshares.com.

The Fund's year-to-date total return as of September 30, 2012 was 7.23%.

Best and Worst Quarter Returns (for the period reflected in the bar chart above)

                 Return      Quarter/Year
Highest Return     8.42%         4Q/2011
Lowest Return    -17.90%         3Q/2011

AVERAGE ANNUAL TOTAL RETURNS FOR THE PERIODS ENDING DECEMBER 31, 2011

Average Annual Total Returns	Label		1 Year	Since Inception	Inception Date
WCM/BNY Mellon Focused Growth ADR ETF	Return Before Taxes Based on NAV		(5.81%)	8.37%	Jul. 20, 2010
WCM/BNY Mellon Focused Growth ADR ETF After Taxes on Distributions	Return After Taxes on Distributions	[1]	(5.81%)	8.33%	Jul. 20, 2010
WCM/BNY Mellon Focused Growth ADR ETF After Taxes on Distributions and Sales	Return After Taxes on Distributions and Sale of Fund Shares	[1]	(3.53%)	7.21%	Jul. 20, 2010
WCM/BNY Mellon Focused Growth ADR ETF MSCI EAFE Index	MSCI EAFE Index (Reflects no deduction for fees, expenses, or taxes)		(12.14%)	2.67%	Jul. 20, 2010

Updated performance information is available on the Fund's website at
www.advisorshares.com.

[1] AdvisorShares Investments, LLC (the "Advisor") has contractually agreed to reduce its fees and/or reimburse expenses in order to keep net expenses (excluding interest, taxes, brokerage commissions, Acquired Fund Fees and Expenses, and extraordinary expenses) from exceeding 1.25% of the Fund's average daily net assets for a year from the date of this Prospectus and for an indefinite period thereafter subject to annual approval by the AdvisorShares Trust Board of Trustees (the "Board"). The expense limitation agreement (i) may be terminated at any time by the Board and (ii) will be terminated upon termination of the investment advisory agreement between the Advisor and the Fund.

[1] After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on your tax situation and may differ from those shown and are not relevant if you hold your shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. In some cases the return after taxes may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period.

XML

Label	Element	Value
Risk Return [Abstract]	rr_RiskReturnAbstract
ProspectusDate	rr_ProspectusDate	Oct. 29, 2012
Rockledge SectorSAM ETF (Prospectus Summary) | Rockledge SectorSAM ETF
Risk Return [Abstract]	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	ROCKLEDGE SectorSAM ETF
Objective [Heading]	rr_ObjectiveHeading	INVESTMENT OBJECTIVE
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The Rockledge SectorSAM ETF (the "Fund") seeks to generate stable and consistent annual returns under all market conditions.
Expense [Heading]	rr_ExpenseHeading	FUND FEES AND EXPENSES
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. Most investors will incur customary brokerage commissions when buying or selling shares of the Fund, which are not reflected in the table below.
Shareholder Fees Caption [Text]	rr_ShareholderFeesCaption	SHAREHOLDER FEES (fees paid directly from your investment) None
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	PORTFOLIO TURNOVER
Portfolio Turnover [Text Block]	rr_PortfolioTurnoverTextBlock	The Fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in Total 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 in-kind creations or redemptions of the Fund's shares. For the period from January 11, 2012, the Fund's commencement of operations, through the most recent fiscal year ended June 30, 2012, the Fund's portfolio turnover rate was 391% of the average value of its portfolio.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	391.00%
Expense Exchange Traded Fund Commissions [Text]	rr_ExpenseExchangeTradedFundCommissions	Most investors will incur customary brokerage commissions when buying or selling shares of the Fund, which are not reflected in the table below.
Expenses Not Correlated to Ratio Due to Acquired Fund Fees [Text]	rr_ExpensesNotCorrelatedToRatioDueToAcquiredFundFees	The Total Annual Fund Operating Expenses and Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement in this fee table may not correlate to the expense ratios in the Fund's financial highlights (and the Fund's financial statements) because the financial highlights include only the Fund's direct operating expenses and do not include Acquired Fund Fees and Expenses.
Expense Example [Heading]	rr_ExpenseExampleHeading	EXAMPLE
Expense Example Narrative [Text Block]	rr_ExpenseExampleNarrativeTextBlock	This Example is intended to help you compare the cost of investing in the shares of the Fund with the cost of investing in other funds. This Example does not take into account creation or redemption transaction fees, or the brokerage commissions that you pay when purchasing or selling shares of the Fund. If the commissions were included, your costs would be higher.    The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then sell all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. 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 a "fund of funds" that seeks to achieve its investment objective by investing primarily in both long and short positions in other exchange traded funds (the "Underlying ETFs") that offer diversified exposure to U.S. large capitalization sectors. Rockledge Advisors LLC, (the "Sub-Advisor") uses "Sector Scoring and Allocation Methodology" ("SectorSAM"), which is a proprietary quantitative analysis, to forecast each sector's excess return within a specific time horizon. The Sub-Advisor seeks to achieve the Fund's investment objective by buying (taking long positions in) Underlying ETFs intended to capture the performance of the most promising sectors and selling (establishing short positions in) Underlying ETFs with the intent of profiting from the least promising sectors of U.S. large capitalization broad market securities. The strategy is designed to generate higher returns in a higher interest rate environment, which is often associated with increased inflation. Under normal circumstances, the Fund strives to invest equal dollar amounts to obtain both long and short exposure in the market at each major rebalancing point (on at least a monthly basis). When fully invested, the Fund will typically be both 100% long and 100% short of total portfolio value. The Sub-Advisor, in its discretion, may choose an additional long or short bias of up to 50% exposure, or may choose to hold amounts in cash or cash equivalents depending on its view of market conditions.
Risk [Heading]	rr_RiskHeading	PRINCIPAL RISKS OF INVESTING IN THE FUND
Risk Narrative [Text Block]	rr_RiskNarrativeTextBlock	The Fund is subject to a number of risks that may affect the value of its shares, including: Allocation Risk. The Fund's particular allocations may have a significant effect on the Fund's performance. Allocation risk is the risk that the selection of Underlying ETFs and the allocation of assets among such Underlying ETFs will cause the Fund to underperform other funds with a similar investment objective that do not allocate their assets in the same manner or the market as a whole. Early Closing Risk. An unanticipated early closing of the NYSE Arca, Inc. (the "Exchange") may result in a shareholder's inability to buy or sell shares of the Fund on that day. Investment Risk. As with all investments, an investment in the Fund is subject to investment risk. Investors in the Fund could lose money, including the possible loss of the entire principal amount of an investment, over short or even long periods of time. Liquidity Risk. Trading in shares of the Fund may be halted because of market conditions or for reasons that, in the view of the Exchange, make trading in shares inadvisable. In addition, trading in listed securities is subject to trading halts caused by extraordinary market volatility pursuant to "circuit breaker" rules. The Fund's investments in ETNs and certain other ETPs may be subject to restrictions on the amount and timing of any redemptions, which may adversely affect the value of the Fund's portfolio holdings.    Market Risk. Due to market conditions, the Fund's investments may fluctuate significantly from day to day. This volatility may cause the value of your investment in the Fund to decrease. Portfolio Turnover Risk. The Fund's investment strategy may result in relatively high portfolio turnover, which may result in increased transaction costs and may lower Fund performance. Short Sales Risk. Short sales are transactions in which the Fund sells a security it does not own. To complete the transaction, the Fund must borrow the security to make delivery to the buyer. The Fund is then obligated to replace the security borrowed by purchasing the security at the market price at the time of replacement. The price at such time may be higher or lower than the price at which the security was sold by the Fund. If the underlying security goes down in price between the time the Fund sells the security and buys it back, the Fund will realize a gain on the transaction. Conversely, if the underlying security goes up in price during the period, the Fund will realize a loss on the transaction. Any such loss is increased by the amount of premium or interest the Fund must pay to the lender of the security. Likewise, any gain will be decreased by the amount of premium or interest the Fund must pay to the lender of the security. Because a short position loses value as the security's price increases, the loss on a short sale is theoretically unlimited. Short sales involve leverage because the Fund borrows securities and then sells them, effectively leveraging its assets. The use of leverage may magnify gains or losses for the Fund. Tax Risk. In order to qualify for the favorable U.S. federal income tax treatment accorded to "regulated investment companies," the Fund must derive at least 90% of its gross income in each taxable year from certain categories of income ("qualifying income"). Certain of the Fund's investments may generate income that is not qualifying income. If the Fund were to fail to meet the qualifying income test and fail to qualify as a regulated investment company, it would be taxed in the same manner as an ordinary corporation, and distributions to its shareholders would not be deductible by the Fund in computing its taxable income. Trading Risk. Shares of the Fund may trade below their net asset value ("NAV"). The NAV of shares will fluctuate with changes in the market value of the Fund's holdings. In addition, although the Fund's shares are currently listed on the Exchange, there can be no assurance that an active trading market for shares will develop or be maintained. Underlying ETF Investment Risk. Through its investments in the Underlying ETFs, the Fund will be subject to the risks associated with such investment vehicles' investments, including the possibility that the value of the securities held by an Underlying ETF could decrease. These risks include any combination of the risks described below. The Fund's exposure to a particular risk will be proportionate to the Fund's overall allocation to the Underlying ETFs and their exposure to various security types and geographic regions.   Concentration Risk. An Underlying ETF may, at various times, concentrate in the   securities of a particular industry, group of industries, or sector, and when a   fund is overweighted in an industry, group of industries, or sector, it may be     more sensitive to any single economic, business, political, or regulatory          occurrence than a fund that is not overweighted in an industry, group of           industries, or sector.   Equity Risk. The prices of equity securities in which an Underlying ETF invests   rise and fall daily. These price movements may result from factors affecting       individual companies, industries or the securities market as a whole.   "Growth" Investing Risk. An Underlying ETF may pursue a "growth style" of           investing. Growth stocks can be volatile for several reasons. Since those          companies usually invest a high portion of earnings in their businesses, they      may lack the dividends of value stocks that can cushion stock prices in a          falling market. The prices of growth stocks are based largely on projections of   the issuer's future earnings and revenues. If a company's earnings or revenues     fall short of expectations, its stock price may fall dramatically.   Investment Risk. Similar to an investment in the Fund, an investment in an          Underlying ETF is not a bank deposit and is not insured or guaranteed by the       Federal Deposit Insurance Corporation or any other government agency. The Fund     may experience losses with respect to its investment in an Underlying ETF.         Further, there is no guarantee that an Underlying ETF will be able to achieve      its objective.   Large-Capitalization Risk. An Underlying ETF may invest in large-cap companies.   Returns on investments in stocks of large U.S. companies could trail the returns   on investments in stocks of smaller and mid-sized companies or the market as a     whole.   Mid-Capitalization Risk. An Underlying ETF may invest in mid-cap companies.       Mid-sized companies may be more volatile and more likely than large-capitalization   companies to have limited product lines, markets or financial resources, or depend   on a few key employees. Returns on investments in stocks of mid-size companies   could trail the returns on investments in stocks of larger or smaller companies or   the market as a whole.   Small-Capitalization Risk. An Underlying ETF may invest in small-cap companies.   Small-cap companies may be more vulnerable than larger, more established           organizations to adverse business or economic developments. In particular,         small-cap companies may have limited product lines, markets, and financial         resources and may be dependent upon a relatively small management group. These     securities may be listed on an exchange or trade over-the-counter, and may or      may not pay dividends. During a period when small-cap stocks fall behind other     types of investments -- large-cap stocks, for instance -- the Underlying ETF's       performance could be adversely affected.   Tracking Error Risk. An Underlying ETF's manager may not be able to cause the      Fund's performance to correspond to that of the Underlying ETF's benchmark,        either on a daily or aggregate basis. Tracking error may cause the Underlying      ETF's performance to be less than expected.   "Value" Investing Risk. Because Underlying ETFs may invest in value stocks,        Underlying ETFs could suffer losses or produce poor results relative to other      funds, even in a rising market, if the Underlying ETF manager's assessment of a   company's value or prospects for exceeding earnings expectations or market         conditions is wrong. As with any fund, there is no guarantee that the Fund will achieve its investment objective.
Risk Lose Money [Text]	rr_RiskLoseMoney	Investors in the Fund could lose money, including the possible loss of the entire principal amount of an investment, over short or even long periods of time.
Risk Not Insured Depository Institution [Text]	rr_RiskNotInsuredDepositoryInstitution	Similar to an investment in the Fund, an investment in an Underlying ETF is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	FUND PERFORMANCE
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	A comparison of the Fund's performance with that of a broad measure of market performance may give some indication of the risks of an investment in the Fund; however, the Fund is new and, therefore, does not have a performance history for a full calendar year. Of course, once the Fund has performance, this past performance (before and after taxes) does not necessarily indicate how the Fund will perform in the future. Updated performance information is available on the Fund's website at www.advisorshares.com.
Performance One Year or Less [Text]	rr_PerformanceOneYearOrLess	A comparison of the Fund's performance with that of a broad measure of market performance may give some indication of the risks of an investment in the Fund; however, the Fund is new and, therefore, does not have a performance history for a full calendar year.
Performance Availability Website Address [Text]	rr_PerformanceAvailabilityWebSiteAddress	www.advisorshares.com
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	Of course, once the Fund has performance, this past performance (before and after taxes) does not necessarily indicate how the Fund will perform in the future.
Rockledge SectorSAM ETF (Prospectus Summary) | Rockledge SectorSAM ETF | Rockledge SectorSAM ETF
Risk Return [Abstract]	rr_RiskReturnAbstract
MANAGEMENT FEES	rr_ManagementFeesOverAssets	1.25%
DISTRIBUTION (12b-1) FEES	rr_DistributionAndService12b1FeesOverAssets	none
Short Interest Expense	rr_Component1OtherExpensesOverAssets	1.60%
Other Expenses	rr_Component2OtherExpensesOverAssets	8.18%
TOTAL OTHER EXPENSES	rr_OtherExpensesOverAssets	9.78%
ACQUIRED FUND FEES AND EXPENSES	rr_AcquiredFundFeesAndExpensesOverAssets	0.01%	[1]
TOTAL ANNUAL FUND OPERATING EXPENSES	rr_ExpensesOverAssets	11.04%	[2]
FEE WAIVER AND/OR EXPENSE REIMBURSEMENT	rr_FeeWaiverOrReimbursementOverAssets	(7.93%)	[3]
TOTAL ANNUAL FUND OPERATING EXPENSES AFTER FEE WAIVER AND/OR EXPENSE REIMBURSEMENT	rr_NetExpensesOverAssets	3.11%	[2]
Fee Waiver or Reimbursement over Assets, Date of Termination	rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination	a year from the date of this Prospectus and for an indefinite period thereafter subject to annual approval by the AdvisorShares Trust Board of Trustees (the "Board").
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	314
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	2,430
Expense Example, with Redemption, 5 Years	rr_ExpenseExampleYear05	4,298
Expense Example, with Redemption, 10 Years	rr_ExpenseExampleYear10	8,066

[1] As a shareholder in certain Underlying ETFs (the "Acquired Funds"), the Fund will indirectly bear its proportionate share of the fees and expenses of the Acquired Funds. "Acquired Fund Fees and Expenses" do not reflect the operating expenses of exchange-traded products in which the Fund invests that are not investment companies, including exchange-traded notes and certain exchange-traded pooled investment vehicles not registered pursuant to the Investment Company Act of 1940 , as amended (the "1940 Act").

[2] The Total Annual Fund Operating Expenses and Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement in this fee table may not correlate to the expense ratios in the Fund's financial highlights (and the Fund's financial statements) because the financial highlights include only the Fund's direct operating expenses and do not include Acquired Fund Fees and Expenses.

[3] The AdvisorShares Investments, LLC ("the Advisor") has contractually agreed to reduce its fees and/or reimburse expenses in order to keep net expenses (excluding interest expense, taxes, brokerage commissions, Acquired Fund Fees and Expenses, and extraordinary expenses) from exceeding 1.50% of the Fund's average daily net assets for a year from the date of this Prospectus and for an indefinite period thereafter subject to annual approval by the AdvisorShares Trust Board of Trustees (the "Board"). The expense limitation agreement (i) may be terminated at any time by the Board and (ii) will be terminated upon termination of the investment advisory agreement between the Advisor and the Fund.

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Label	Element	Value
Risk Return [Abstract]	rr_RiskReturnAbstract
ProspectusDate	rr_ProspectusDate	Oct. 29, 2012
Ranger Equity Bear ETF (Prospectus Summary) | Ranger Equity Bear ETF
Risk Return [Abstract]	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	RANGER EQUITY BEAR ETF
Objective [Heading]	rr_ObjectiveHeading	INVESTMENT OBJECTIVE
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The Ranger Equity Bear ETF (the "Fund") seeks capital appreciation through short sales of domestically traded equity securities.
Expense [Heading]	rr_ExpenseHeading	FUND FEES AND EXPENSES
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. Most investors will incur customary brokerage commissions when buying or selling shares of the Fund, which are not reflected in the table below.
Shareholder Fees Caption [Text]	rr_ShareholderFeesCaption	SHAREHOLDER FEES (fees paid directly from your investment) None
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	PORTFOLIO TURNOVER
Portfolio Turnover [Text Block]	rr_PortfolioTurnoverTextBlock	The Fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in Total 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 in-kind creations or redemptions of the Fund's shares. During the most recent fiscal year ended June 30, 2012, the Fund's portfolio turnover rate was 756% of the average value of its portfolio.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	756.00%
Expense Exchange Traded Fund Commissions [Text]	rr_ExpenseExchangeTradedFundCommissions	Most investors will incur customary brokerage commissions when buying or selling shares of the Fund, which are not reflected in the table below.
Expenses Not Correlated to Ratio Due to Acquired Fund Fees [Text]	rr_ExpensesNotCorrelatedToRatioDueToAcquiredFundFees	The Total Annual Fund Operating Expenses in this fee table may not correlate to the expense ratios in the Fund's financial highlights (and the Fund's financial statements) because the financial highlights include only the Fund's direct operating expenses and do not include Acquired Fund Fees and Expenses.
Expense Example [Heading]	rr_ExpenseExampleHeading	EXAMPLE
Expense Example Narrative [Text Block]	rr_ExpenseExampleNarrativeTextBlock	This Example is intended to help you compare the cost of investing in the shares of the Fund with the cost of investing in other funds. This Example does not take into account creation or redemption transaction fees, or the brokerage commissions that you pay when purchasing or selling shares of the Fund. If the commissions were included, your costs would be higher. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then sell all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. 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	Ranger Alternative Management, L.P. (the "Sub-Advisor") seeks to achieve the Fund's investment objective by short selling a portfolio of liquid mid- and large-cap U.S. exchange-traded equity securities, exchange-traded funds ("ETFs") registered pursuant to the 1940 Act, exchange-traded notes ("ETNs") and other exchange-traded products ("ETPs"). The Sub-Advisor implements a bottom-up, fundamental, research driven security selection process that seeks to identify securities with low earnings quality or aggressive accounting that may tend to mask operational deterioration and bolster the reported earnings per share over a short time period. In addition to these issues, the Sub-Advisor seeks to identify earnings driven events that may act as a catalyst to the price decline of a security, such as downwards earnings revisions or reduced forward earnings outlook. On a day-to-day basis, the Fund may hold U.S. government securities, short-term high quality fixed income securities, money market instruments, overnight and fixed-term repurchase agreements, cash and cash equivalents with maturities of one year or less for investment purposes and to cover its short positions. In addition to extensive quantitative analysis, careful consideration is given to qualitative analysis. The assessment of the management team, accounting practices, corporate governance and the company's competitive advantage are all key items. Once these quantitative and qualitative characteristics are thoroughly analyzed, the Sub-Advisor then determines if there is sufficient return to the stock price to warrant an investment. Once a position is included in the Fund's portfolio, it is subject to regular fundamental and technical risk management review. This continual review process seeks to identify problem positions early and enhances performance by removing them before they become significant issues for the portfolio.
Risk [Heading]	rr_RiskHeading	PRINCIPAL RISKS OF INVESTING IN THE FUND
Risk Narrative [Text Block]	rr_RiskNarrativeTextBlock	The Fund is subject to a number of risks that may affect the value of its shares, including: Early Closing Risk. An unanticipated early closing of the NYSE Arca, Inc. (the "Exchange") may result in a shareholder's inability to buy or sell shares of the Fund on that day. Equity Risk. The prices of equity securities in which the Fund holds short positions may rise and fall daily. These price movements may result from factors affecting individual issuers, industries or the stock market as a whole. Exchange-Traded Vehicle Risk. The Fund may invest in (or short) ETFs, ETNs and ETPs. Through its positions in ETFs, ETNs and ETPs, the Fund will be subject to the risks associated with such vehicles, investments, or reference assets in the case of ETNs, including the possibility that the value of the securities or instruments held by an ETF, ETN or ETP could decrease (or increase in the case of short positions). Lack of liquidity in an ETP, ETN, or ETF can result in its value being more volatile than the underlying portfolio investment. In addition, certain of the ETPs, ETFs, or ETNs may hold common portfolio positions, thereby reducing any diversification benefits. Fixed Income Risk. The Fund may be exposed to fixed income risk through its short positions in ETFs and ETPs that primarily invest in, or have exposure to, fixed income securities. The value of an ETF's or ETP's portfolio of fixed income securities will change in response to interest rate changes and other factors, such as the perception of the issuers' creditworthiness. During periods of falling interest rates, the value of outstanding fixed income securities generally rise. Conversely, during periods of rising interest rates, the value of fixed income securities generally decline.    Issuer Risk. From time to time the Fund may have exposure via its short positions to a limited number of issuers. During such times, the Fund is more susceptible to the risk that an issuer's securities may appreciate in value. Liquidity Risk. Trading in shares of the Fund may be halted because of market conditions or for reasons that, in the view of the Exchange, make trading in shares inadvisable. In addition, trading in listed securities is subject to trading halts caused by extraordinary market volatility pursuant to "circuit breaker" rules. The Fund's investments in ETNs and certain other ETPs may be subject to restrictions on the amount and timing of any redemptions, which may adversely affect the value of the Fund's portfolio holdings. Market Risk. Due to market conditions, the Fund's investments may fluctuate significantly from day to day. This volatility may cause the value of your investment in the Fund to decrease. Mid-Capitalization and Large-Capitalization Risk. The Fund is subject to the risk that medium and large-cap stocks may outperform other segments of the equity market or the equity market as a whole. Portfolio Turnover Risk. The Fund's investment strategy may result in relatively high portfolio turnover, which may result in increased transaction costs and may lower Fund performance. Short Sales Risk. Short sales are transactions in which the Fund sells a security it does not own. To complete the transaction, the Fund must borrow the security to make delivery to the buyer. The Fund is then obligated to replace the security borrowed by purchasing the security at the market price at the time of replacement. The price at such time may be higher or lower than the price at which the security was sold by the Fund. If the underlying security goes down in price between the time the Fund sells the security and buys it back, the Fund will realize a gain on the transaction. Conversely, if the underlying security goes up in price during the period, the Fund will realize a loss on the transaction. Any such loss is increased by the amount of premium or interest the Fund must pay to the lender of the security. Likewise, any gain will be decreased by the amount of premium or interest the Fund must pay to the lender of the security. Because a short position loses value as the security's price increases, the loss on a short sale is theoretically unlimited. Short sales involve leverage because the Fund borrows securities and then sells them, effectively leveraging its assets. The use of leverage may magnify gains or losses for the Fund. Trading Risk. Shares of the Fund may trade below their net asset value ("NAV"). The NAV of shares will fluctuate with changes in the market value of the Fund's holdings. In addition, although the Fund's shares are currently listed on the Exchange, there can be no assurance that an active trading market for shares will develop or be maintained. As with any fund, there is no guarantee that the Fund will achieve its investment objective.
Risk Lose Money [Text]	rr_RiskLoseMoney	As with any fund, there is no guarantee that the Fund will achieve its investment objective.
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	FUND PERFORMANCE
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	A comparison of the Fund's performance with that of a broad measure of market performance may give some indication of the risks of an investment in the Fund; however, the Fund is new and, therefore, does not have a performance history for a full calendar year. Of course, once the Fund has performance, this past performance (before and after taxes) does not necessarily indicate how the Fund will perform in the future. Updated performance information is available on the Fund's website at www.advisorshares.com.
Performance One Year or Less [Text]	rr_PerformanceOneYearOrLess	A comparison of the Fund's performance with that of a broad measure of market performance may give some indication of the risks of an investment in the Fund; however, the Fund is new and, therefore, does not have a performance history for a full calendar year.
Performance Availability Website Address [Text]	rr_PerformanceAvailabilityWebSiteAddress	www.advisorshares.com
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	Of course, once the Fund has performance, this past performance (before and after taxes) does not necessarily indicate how the Fund will perform in the future.
Ranger Equity Bear ETF (Prospectus Summary) | Ranger Equity Bear ETF | Ranger Equity Bear ETF
Risk Return [Abstract]	rr_RiskReturnAbstract
MANAGEMENT FEES	rr_ManagementFeesOverAssets	1.50%
DISTRIBUTION (12b-1) FEES	rr_DistributionAndService12b1FeesOverAssets	none
Short Interest Expense	rr_Component1OtherExpensesOverAssets	1.37%
Other Expenses	rr_Component2OtherExpensesOverAssets	0.19%
TOTAL OTHER EXPENSES	rr_OtherExpensesOverAssets	1.56%
ACQUIRED FUND FEES AND EXPENSES	rr_AcquiredFundFeesAndExpensesOverAssets	0.24%	[1]
TOTAL ANNUAL FUND OPERATING EXPENSES	rr_ExpensesOverAssets	3.30%	[2]
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	333
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	1,016
Expense Example, with Redemption, 5 Years	rr_ExpenseExampleYear05	1,722
Expense Example, with Redemption, 10 Years	rr_ExpenseExampleYear10	3,596

[1] As a shareholder in certain ETFs (the "Acquired Funds"), the Fund will indirectly bear its proportionate share of the fees and expenses of the Acquired Funds. "Acquired Fund Fees and Expenses" do not reflect the operating expenses of exchange-traded products in which the Fund invests that are not investment companies, including ETNs and exchange-traded pooled investment vehicles not registered pursuant to the Investment Company Act of 1940, as amended (the "1940 Act").

[2] The Total Annual Fund Operating Expenses in this fee table may not correlate to the expense ratios in the Fund's financial highlights (and the Fund's financial statements) because the financial highlights include only the Fund's direct operating expenses and do not include Acquired Fund Fees and Expenses.

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Label	Element	Value
Risk Return [Abstract]	rr_RiskReturnAbstract
ProspectusDate	rr_ProspectusDate	Oct. 29, 2012
Madrona Global Bond ETF (Prospectus Summary) | Madrona Global Bond ETF
Risk Return [Abstract]	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	MADRONA GLOBAL BOND ETF
Objective [Heading]	rr_ObjectiveHeading	INVESTMENT OBJECTIVE
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The Madrona Global Bond ETF (the "Fund") seeks investment results that exceed the price and yield performance of its benchmark, the Barclays Capital Aggregate Bond Index.
Expense [Heading]	rr_ExpenseHeading	FUND FEES AND EXPENSES
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. Most investors will incur customary brokerage commissions when buying or selling shares of the Fund which are not reflected in the table below.
Shareholder Fees Caption [Text]	rr_ShareholderFeesCaption	SHAREHOLDER FEES (fees paid directly from your investment) None
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	PORTFOLIO TURNOVER
Portfolio Turnover [Text Block]	rr_PortfolioTurnoverTextBlock	The Fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect Fund performance. This rate excludes the value of portfolio securities received or delivered as a result of in-kind creations or redemptions of the Fund's shares. During the most recent fiscal year, the Fund's portfolio turnover rate was 12% of the average value of its portfolio.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	12.00%
Expense Exchange Traded Fund Commissions [Text]	rr_ExpenseExchangeTradedFundCommissions	Most investors will incur customary brokerage commissions when buying or selling shares of the Fund which are not reflected in the table below.
Expenses Not Correlated to Ratio Due to Acquired Fund Fees [Text]	rr_ExpensesNotCorrelatedToRatioDueToAcquiredFundFees	The Total Annual Fund Operating Expenses and Total Annual Fund Operating Expenses After Fee Waiver and/or Reimbursements in this fee table may not correlate to the expense ratios in the Fund's financial highlights (and the Fund's financial statements) because the financial highlights include only the Fund's direct operating expenses and do not include Acquired Fund Fees and Expenses, which are fees and expenses incurred indirectly by the Fund through its investments in the Acquired Funds.
Expense Example [Heading]	rr_ExpenseExampleHeading	EXAMPLE
Expense Example Narrative [Text Block]	rr_ExpenseExampleNarrativeTextBlock	This Example is intended to help you compare the cost of investing in the shares of the Fund with the cost of investing in other funds. This example does not take into account creation or redemption transaction fees, or the brokerage commissions that you pay when purchasing or selling shares of the Fund. If the commissions were included, your costs would be higher.     The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then sell all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. 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	Madrona Funds, LLC (the "Sub-Advisor") seeks to achieve the Fund's investment objective by selecting a portfolio of fixed income (bond) exchange traded funds (the "Underlying ETFs") and other exchange traded products ("ETPs"), including, but not limited to, exchange traded notes ("ETNs"), exchange traded currency trusts, and exchange-traded commodity pools. The Fund invests in ETFs that provide exposure to at least 12 distinct bond classes, including, but not limited to, short-term treasury bonds, municipal bonds, and high-yield U.S. corporate bonds (sometimes referred to as "junk bonds"). The Sub-Advisor will construct the Fund's portfolio using a weighted allocation system based on yield curve analysis of each bond category. The investment committee meets on a bi-weekly basis to monitor the Fund's portfolio and make allocation decisions. The investment committee uses third-party analyst research and a proprietary fundamental process to make allocation decisions. Each major bond category will have a three percent minimum percentage inclusion in the Fund's portfolio.
Risk [Heading]	rr_RiskHeading	PRINCIPAL RISKS OF INVESTING IN THE FUND
Risk Narrative [Text Block]	rr_RiskNarrativeTextBlock	The Fund is subject to a number of risks that may affect the value of its shares, including Early Closing Risk. An unanticipated early closing of the NYSE Arca, Inc. (the "Exchange") may result in a shareholder's inability to buy or sell shares of the Fund on that day. ETN Risk. ETNs are senior, unsecured unsubordinated debt securities issued by an underwriting bank that are designed to provide returns that are linked to a particular benchmark less investor fees. ETNs have a maturity date and generally, are backed only by the creditworthiness of the issuer. As a result, the value of an ETN may be influenced by time to maturity, level of supply and demand for the ETN, volatility and lack of liquidity in the underlying market (e.g., the commodities market), changes in the applicable interest rates, and changes in the issuer's credit rating and economic, legal, political or geographic events that affect the referenced market. ETNs also may be subject to commodities market risk and credit risk. Liquidity Risk. Trading in shares of the Fund may be halted because of market conditions or for reasons that, in the view of the Exchange, make trading in shares inadvisable. In addition, trading in listed securities is subject to trading halts caused by extraordinary market volatility pursuant to "circuit breaker" rules. The Fund's investments in ETNs and certain other ETPs may be subject to restrictions on the amount and timing of any redemptions, which may adversely affect the value of the Fund's portfolio holdings. Market Risk. Due to market conditions, the Fund's investments may fluctuate significantly from day to day. This volatility may cause the value of your investment in the Fund to decrease.    Tax Risk. In order to qualify for the favorable U.S. federal income tax treatment accorded to "regulated investment companies," the Fund must derive at least 90% of its gross income in each taxable year from certain categories of income ("qualifying income"). Certain of the Fund's investments may generate income that is not qualifying income. If the Fund were to fail to meet the qualifying income test and fail to qualify as a regulated investment company, it would be taxed in the same manner as an ordinary corporation, and distributions to its shareholders would not be deductible by the Fund in computing its taxable income. Trading Risk. Shares of the Fund may trade below their NAV. The NAV of shares will fluctuate with changes in the market value of the Fund's holdings. In addition, although the Fund's shares are currently listed on the Exchange, there can be no assurance that an active trading market for shares will develop or be maintained. Underlying ETF and ETP Investment Risk. Through its investments in the Underlying ETFs or ETPs, the Fund will be subject to the risks associated with the Underlying ETFs' or ETP's investments, including the possibility that the value of the securities or assets held by an Underlying ETF or ETP could decrease. These risks include any combination of the risks described below, although the Fund's exposure to a particular risk will be proportionate to the Fund's overall allocation and each Underlying ETF's or ETP's asset allocation.   Commodities Risk. The commodities industries can be significantly affected by the   level and volatility of commodity prices; world events including international   monetary and political developments; import controls and worldwide competition;   exploration and production spending; and tax and other government regulations and   economic conditions.                                               Concentration Risk. An Underlying ETF or ETP may, at various times, concentrate   in the securities of a particular industry, group of industries, or sector, and   when a fund is overweighted in an industry, group of industries, or sector, it     may be more sensitive to any single economic, business, political, or regulatory   occurrence than a fund that is not overweighted in an industry, group of           industries, or sector.                                                             Credit Risk. Certain of the Underlying ETFs or ETPs are subject to the risk that   a decline in the credit quality of a portfolio investment could cause the          Underlying ETF's or ETP's share price to fall. The Underlying ETFs and ETPs        could lose money if the issuer or guarantor of a portfolio investment or the       counterparty to a derivatives contract fails to make timely principal or           interest payments or otherwise honor its obligations.                              Fixed Income Risk. An Underlying ETF's or ETP's investments in fixed income        securities are subject to the risk that the securities may be paid off earlier     or later than expected. Either situation could cause the Underlying ETF or ETP     to hold securities paying lower- than-market rates of interest, which could hurt   the Fund's yield or share price.                                                   High-Yield Risk. An Underlying ETF or ETP may invest in high-yield securities     and unrated securities of similar credit quality (commonly known as "junk bonds").   High-yield securities generally pay higher yields (greater income) than investment   in higher quality securities; however, high-yield securities and junk bonds may be   subject to greater levels of interest rate, credit and liquidity risk than funds   that do not invest in such securities, and are considered predominantly speculative   with respect to an issuer's continuing ability to make principal and interest payments.   Income Risk. An Underlying ETF or ETP may derive dividend and interest income      from certain of its investments. This income can vary widely over the short- and   long-term. If prevailing market interest rates drop, distribution rates of an      Underlying ETF's or ETP's income producing investments may decline which then      may adversely affect the Fund's value.   Interest Rate Risk. An Underlying ETF's or ETP's investments in fixed income       securities are subject to the risk that interest rates rise and fall over time.     As with any investment whose yield reflects current interest rates, an             Underlying ETF's or ETP's yield will change over time. During periods when         interest rates are low, an Underlying ETF's or ETP's yield (and total return)      also may be low. To the extent that the investment adviser (or sub-adviser) of     an Underlying ETF or ETP anticipates interest rate trends imprecisely, the         Underlying ETF or ETP could miss yield opportunities or its share price could      fall.   Investment Risk. An investment in an Underlying ETF or ETP is not a bank deposit   and is not insured or guaranteed by the Federal Deposit Insurance Corporation or   any other government agency. The Fund may experience losses with respect to its   investment in an Underlying ETF or ETP. Further, there is no guarantee that an     Underlying ETF or ETP will be able to achieve its objective. As with any fund, there is no guarantee that the Fund will achieve its investment objective.
Risk Lose Money [Text]	rr_RiskLoseMoney	As with any fund, there is no guarantee that the Fund will achieve its investment objective.
Risk Not Insured Depository Institution [Text]	rr_RiskNotInsuredDepositoryInstitution	An investment in an Underlying ETF or ETP is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	FUND PERFORMANCE
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	A comparison of the Fund's performance with that of a broad measure of market performance may give some indication of the risks of an investment in the Fund; however, the Fund is new and, therefore, does not have a performance history for a full calendar year. Of course, once the Fund has performance, this past performance (before and after taxes) does not necessarily indicate how the Fund will perform in the future. Updated performance information is available on the Fund's website at www.advisorshares.com.
Performance One Year or Less [Text]	rr_PerformanceOneYearOrLess	A comparison of the Fund's performance with that of a broad measure of market performance may give some indication of the risks of an investment in the Fund; however, the Fund is new and, therefore, does not have a performance history for a full calendar year.
Performance Availability Website Address [Text]	rr_PerformanceAvailabilityWebSiteAddress	www.advisorshares.com
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	Of course, once the Fund has performance, this past performance (before and after taxes) does not necessarily indicate how the Fund will perform in the future.
Madrona Global Bond ETF (Prospectus Summary) | Madrona Global Bond ETF | Madrona Global Bond ETF
Risk Return [Abstract]	rr_RiskReturnAbstract
MANAGEMENT FEES	rr_ManagementFeesOverAssets	0.50%
DISTRIBUTION (12b-1) FEES	rr_DistributionAndService12b1FeesOverAssets	none
OTHER EXPENSES	rr_OtherExpensesOverAssets	0.49%
ACQUIRED FUND FEES AND EXPENSES	rr_AcquiredFundFeesAndExpensesOverAssets	0.31%	[1]
TOTAL ANNUAL FUND OPERATING EXPENSES	rr_ExpensesOverAssets	1.30%	[2]
FEE WAIVER AND/OR EXPENSE REIMBURSEMENT	rr_FeeWaiverOrReimbursementOverAssets	(0.04%)	[3]
TOTAL ANNUAL FUND OPERATING EXPENSES AFTER FEE WAIVER AND/OR REIMBURSEMENTS	rr_NetExpensesOverAssets	1.26%	[2]
Fee Waiver or Reimbursement over Assets, Date of Termination	rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination	a year from the date of this Prospectus and for an indefinite period thereafter subject to annual approval by the Board.
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	128
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	407
Expense Example, with Redemption, 5 Years	rr_ExpenseExampleYear05	707
Expense Example, with Redemption, 10 Years	rr_ExpenseExampleYear10	1,559

[1] As a shareholder in certain Underlying ETFs (the "Acquired Funds"), the Fund will indirectly bear its proportionate share of the fees and expenses of the Acquired Funds. "Acquired Fund Fees and Expenses" do not reflect the operating expenses of exchange-traded products in which the Fund invests that are not investment companies, including exchange-traded notes and exchange-traded pooled investment vehicles not registered pursuant to the Investment Company Act of 1940, as amended (the "1940 Act").

[2] The Total Annual Fund Operating Expenses and Total Annual Fund Operating Expenses After Fee Waiver and/or Reimbursements in this fee table may not correlate to the expense ratios in the Fund's financial highlights (and the Fund's financial statements) because the financial highlights include only the Fund's direct operating expenses and do not include Acquired Fund Fees and Expenses, which are fees and expenses incurred indirectly by the Fund through its investments in the Acquired Funds.

[3] AdvisorShares Investments, LLC (the "Advisor") has contractually agreed to reduce its fees and/or reimburse expenses in order to keep net expenses (excluding interest, taxes, brokerage commissions, Acquired Fund Fees and Expenses, and extraordinary expenses) from exceeding 0.95% of the Fund's average daily net assets for a year from the date of this Prospectus and for an indefinite period thereafter subject to annual approval by the Board. The expense limitation agreement (i) may be terminated at any time by the Board and (ii) will be terminated upon termination of the investment advisory agreement between the Advisor and the Fund.

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Rockledge SectorSAM ETF (Prospectus Summary) | Rockledge SectorSAM ETF

ROCKLEDGE SectorSAM ETF

INVESTMENT OBJECTIVE

The Rockledge SectorSAM ETF (the "Fund") seeks to generate stable and consistent
annual returns under all market conditions.

FUND FEES AND EXPENSES

This table describes the fees and expenses that you may pay if you buy and hold
shares of the Fund. Most investors will incur customary brokerage commissions
when buying or selling shares of the Fund, which are not reflected in the table
below.

SHAREHOLDER FEES (fees paid directly from your investment) None

ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses		Rockledge SectorSAM ETF
MANAGEMENT FEES		1.25%
DISTRIBUTION (12b-1) FEES		none
Short Interest Expense		1.60%
Other Expenses		8.18%
TOTAL OTHER EXPENSES		9.78%
ACQUIRED FUND FEES AND EXPENSES	[1]	0.01%
TOTAL ANNUAL FUND OPERATING EXPENSES	[2]	11.04%
FEE WAIVER AND/OR EXPENSE REIMBURSEMENT	[3]	7.93%
TOTAL ANNUAL FUND OPERATING EXPENSES AFTER FEE WAIVER AND/OR EXPENSE REIMBURSEMENT	[2]	3.11%

EXAMPLE

This Example is intended to help you compare the cost of investing in the shares
of the Fund with the cost of investing in other funds. This Example does not
take into account creation or redemption transaction fees, or the brokerage
commissions that you pay when purchasing or selling shares of the Fund. If the
commissions were included, your costs would be higher.
  
The Example assumes that you invest $10,000 in the Fund for the time periods
indicated and then sell all of your shares at the end of those periods. The
Example also assumes that your investment has a 5% return each year and that the
Fund's operating expenses remain the same. Although your actual costs may be
higher or lower, based on these assumptions your costs would be:

Expense Example (USD $)	Expense Example, with Redemption, 1 Year	Expense Example, with Redemption, 3 Years	Expense Example, with Redemption, 5 Years	Expense Example, with Redemption, 10 Years
Rockledge SectorSAM ETF	314	2,430	4,298	8,066

PORTFOLIO TURNOVER

The Fund pays transaction costs, such as commissions, when it buys and sells
securities (or "turns over" its portfolio). A higher portfolio turnover may
indicate higher transaction costs and may result in higher taxes when Fund
shares are held in a taxable account. These costs, which are not reflected
in Total 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 in-kind creations or redemptions of the Fund's shares.
For the period from January 11, 2012, the Fund's commencement of operations,
through the most recent fiscal year ended June 30, 2012, the Fund's portfolio
turnover rate was 391% of the average value of its portfolio.

PRINCIPAL INVESTMENT STRATEGIES

The Fund is a "fund of funds" that seeks to achieve its investment objective by
investing primarily in both long and short positions in other exchange traded
funds (the "Underlying ETFs") that offer diversified exposure to U.S. large
capitalization sectors. Rockledge Advisors LLC, (the "Sub-Advisor") uses "Sector
Scoring and Allocation Methodology" ("SectorSAM"), which is a proprietary
quantitative analysis, to forecast each sector's excess return within a specific
time horizon. The Sub-Advisor seeks to achieve the Fund's investment objective
by buying (taking long positions in) Underlying ETFs intended to capture the
performance of the most promising sectors and selling (establishing short
positions in) Underlying ETFs with the intent of profiting from the least
promising sectors of U.S. large capitalization broad market securities. The
strategy is designed to generate higher returns in a higher interest rate
environment, which is often associated with increased inflation.

Under normal circumstances, the Fund strives to invest equal dollar amounts to
obtain both long and short exposure in the market at each major rebalancing
point (on at least a monthly basis). When fully invested, the Fund will
typically be both 100% long and 100% short of total portfolio value. The
Sub-Advisor, in its discretion, may choose an additional long or short bias of
up to 50% exposure, or may choose to hold amounts in cash or cash equivalents
depending on its view of market conditions.

PRINCIPAL RISKS OF INVESTING IN THE FUND

The Fund is subject to a number of risks that may affect the value of its
shares, including:

Allocation Risk. The Fund's particular allocations may have a significant effect
on the Fund's performance. Allocation risk is the risk that the selection of
Underlying ETFs and the allocation of assets among such Underlying ETFs will
cause the Fund to underperform other funds with a similar investment objective
that do not allocate their assets in the same manner or the market as a whole.

Early Closing Risk. An unanticipated early closing of the NYSE Arca, Inc. (the
"Exchange") may result in a shareholder's inability to buy or sell shares of the
Fund on that day.

Investment Risk. As with all investments, an investment in the Fund is subject
to investment risk. Investors in the Fund could lose money, including the
possible loss of the entire principal amount of an investment, over short or
even long periods of time.

Liquidity Risk. Trading in shares of the Fund may be halted because of market
conditions or for reasons that, in the view of the Exchange, make trading in
shares inadvisable. In addition, trading in listed securities is subject to
trading halts caused by extraordinary market volatility pursuant to "circuit
breaker" rules. The Fund's investments in ETNs and certain other ETPs may be
subject to restrictions on the amount and timing of any redemptions, which may
adversely affect the value of the Fund's portfolio holdings.
  
Market Risk. Due to market conditions, the Fund's investments may fluctuate
significantly from day to day. This volatility may cause the value of your
investment in the Fund to decrease.

Portfolio Turnover Risk. The Fund's investment strategy may result in relatively
high portfolio turnover, which may result in increased transaction costs and may
lower Fund performance.

Short Sales Risk. Short sales are transactions in which the Fund sells a security
it does not own. To complete the transaction, the Fund must borrow the security
to make delivery to the buyer. The Fund is then obligated to replace the security
borrowed by purchasing the security at the market price at the time of replacement.
The price at such time may be higher or lower than the price at which the security
was sold by the Fund. If the underlying security goes down in price between the
time the Fund sells the security and buys it back, the Fund will realize a gain on
the transaction. Conversely, if the underlying security goes up in price during the
period, the Fund will realize a loss on the transaction. Any such loss is increased
by the amount of premium or interest the Fund must pay to the lender of the security.
Likewise, any gain will be decreased by the amount of premium or interest the Fund
must pay to the lender of the security. Because a short position loses value as the
security's price increases, the loss on a short sale is theoretically unlimited.
Short sales involve leverage because the Fund borrows securities and then sells
them, effectively leveraging its assets. The use of leverage may magnify gains or
losses for the Fund.

Tax Risk. In order to qualify for the favorable U.S. federal income tax treatment
accorded to "regulated investment companies," the Fund must derive at least 90%
of its gross income in each taxable year from certain categories of income
("qualifying income"). Certain of the Fund's investments may generate income that
is not qualifying income. If the Fund were to fail to meet the qualifying income
test and fail to qualify as a regulated investment company, it would be taxed in
the same manner as an ordinary corporation, and distributions to its shareholders
would not be deductible by the Fund in computing its taxable income.

Trading Risk. Shares of the Fund may trade below their net asset value ("NAV").
The NAV of shares will fluctuate with changes in the market value of the Fund's
holdings. In addition, although the Fund's shares are currently listed on the
Exchange, there can be no assurance that an active trading market for shares
will develop or be maintained.

Underlying ETF Investment Risk. Through its investments in the Underlying ETFs,
the Fund will be subject to the risks associated with such investment vehicles'
investments, including the possibility that the value of the securities held by
an Underlying ETF could decrease. These risks include any combination of the
risks described below. The Fund's exposure to a particular risk will be
proportionate to the Fund's overall allocation to the Underlying ETFs and their
exposure to various security types and geographic regions.

  Concentration Risk. An Underlying ETF may, at various times, concentrate in the
  securities of a particular industry, group of industries, or sector, and when a
  fund is overweighted in an industry, group of industries, or sector, it may be  
  more sensitive to any single economic, business, political, or regulatory       
  occurrence than a fund that is not overweighted in an industry, group of        
  industries, or sector.

  Equity Risk. The prices of equity securities in which an Underlying ETF invests
  rise and fall daily. These price movements may result from factors affecting    
  individual companies, industries or the securities market as a whole.

  "Growth" Investing Risk. An Underlying ETF may pursue a "growth style" of        
  investing. Growth stocks can be volatile for several reasons. Since those       
  companies usually invest a high portion of earnings in their businesses, they   
  may lack the dividends of value stocks that can cushion stock prices in a       
  falling market. The prices of growth stocks are based largely on projections of
  the issuer's future earnings and revenues. If a company's earnings or revenues  
  fall short of expectations, its stock price may fall dramatically.

  Investment Risk. Similar to an investment in the Fund, an investment in an       
  Underlying ETF is not a bank deposit and is not insured or guaranteed by the    
  Federal Deposit Insurance Corporation or any other government agency. The Fund  
  may experience losses with respect to its investment in an Underlying ETF.      
  Further, there is no guarantee that an Underlying ETF will be able to achieve   
  its objective.

  Large-Capitalization Risk. An Underlying ETF may invest in large-cap companies.
  Returns on investments in stocks of large U.S. companies could trail the returns
  on investments in stocks of smaller and mid-sized companies or the market as a  
  whole.

  Mid-Capitalization Risk. An Underlying ETF may invest in mid-cap companies.    
  Mid-sized companies may be more volatile and more likely than large-capitalization
  companies to have limited product lines, markets or financial resources, or depend
  on a few key employees. Returns on investments in stocks of mid-size companies
  could trail the returns on investments in stocks of larger or smaller companies or
  the market as a whole.

  Small-Capitalization Risk. An Underlying ETF may invest in small-cap companies.
  Small-cap companies may be more vulnerable than larger, more established        
  organizations to adverse business or economic developments. In particular,      
  small-cap companies may have limited product lines, markets, and financial      
  resources and may be dependent upon a relatively small management group. These  
  securities may be listed on an exchange or trade over-the-counter, and may or   
  may not pay dividends. During a period when small-cap stocks fall behind other  
  types of investments -- large-cap stocks, for instance -- the Underlying ETF's    
  performance could be adversely affected.

  Tracking Error Risk. An Underlying ETF's manager may not be able to cause the   
  Fund's performance to correspond to that of the Underlying ETF's benchmark,     
  either on a daily or aggregate basis. Tracking error may cause the Underlying   
  ETF's performance to be less than expected.

  "Value" Investing Risk. Because Underlying ETFs may invest in value stocks,     
  Underlying ETFs could suffer losses or produce poor results relative to other   
  funds, even in a rising market, if the Underlying ETF manager's assessment of a
  company's value or prospects for exceeding earnings expectations or market      
  conditions is wrong.

As with any fund, there is no guarantee that the Fund will achieve its
investment objective.

FUND PERFORMANCE

A comparison of the Fund's performance with that of a broad measure of market
performance may give some indication of the risks of an investment in the Fund;
however, the Fund is new and, therefore, does not have a performance history
for a full calendar year. Of course, once the Fund has performance, this past
performance (before and after taxes) does not necessarily indicate how the Fund
will perform in the future.

Updated performance information is available on the Fund's website at
www.advisorshares.com.

[1] As a shareholder in certain Underlying ETFs (the "Acquired Funds"), the Fund will indirectly bear its proportionate share of the fees and expenses of the Acquired Funds. "Acquired Fund Fees and Expenses" do not reflect the operating expenses of exchange-traded products in which the Fund invests that are not investment companies, including exchange-traded notes and certain exchange-traded pooled investment vehicles not registered pursuant to the Investment Company Act of 1940 , as amended (the "1940 Act").

[2] The Total Annual Fund Operating Expenses and Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement in this fee table may not correlate to the expense ratios in the Fund's financial highlights (and the Fund's financial statements) because the financial highlights include only the Fund's direct operating expenses and do not include Acquired Fund Fees and Expenses.

[3] The AdvisorShares Investments, LLC ("the Advisor") has contractually agreed to reduce its fees and/or reimburse expenses in order to keep net expenses (excluding interest expense, taxes, brokerage commissions, Acquired Fund Fees and Expenses, and extraordinary expenses) from exceeding 1.50% of the Fund's average daily net assets for a year from the date of this Prospectus and for an indefinite period thereafter subject to annual approval by the AdvisorShares Trust Board of Trustees (the "Board"). The expense limitation agreement (i) may be terminated at any time by the Board and (ii) will be terminated upon termination of the investment advisory agreement between the Advisor and the Fund.

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Meidell Tactical Advantage ETF (Prospectus Summary) | Meidell Tactical Advantage ETF

MEIDELL TACTICAL ADVANTAGE ETF

INVESTMENT OBJECTIVE

The Meidell Tactical Advantage ETF (the "Fund") seeks to provide long-term
capital appreciation

with a secondary emphasis on capital preservation.

FUND FEES AND EXPENSES

This table describes the fees and expenses that you may pay if you buy and hold
shares of the Fund. Most investors will incur customary brokerage commissions
when buying or selling shares of the Fund, which are not reflected in the table
below.

SHAREHOLDER FEES (fees paid directly from your investment) None

ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses		Meidell Tactical Advantage ETF
MANAGEMENT FEES		1.20%
DISTRIBUTION (12b-1) FEES		none
OTHER EXPENSES		2.49%
ACQUIRED FUND FEES AND EXPENSES	[1]	0.23%
TOTAL ANNUAL FUND OPERATING EXPENSES	[2]	3.92%
FEE WAIVER AND/OR EXPENSE REIMBURSEMENT	[3]	2.34%
TOTAL ANNUAL FUND OPERATING EXPENSES AFTER FEE WAIVER AND/OR EXPENSE REIMBURSEMENT	[2]	1.58%

EXAMPLE

This Example is intended to help you compare the cost of investing in the shares
of the Fund with the cost of investing in other funds. This example does not
take into account creation or redemption transaction fees, or the brokerage
commissions that you pay when purchasing or selling shares of the Fund. If the
commissions were included, your costs would be higher.
  
The Example assumes that you invest $10,000 in the Fund for the time periods
indicated and then sell all of your shares at the end of those periods. The
Example also assumes that your investment has a 5% return each year and that the
Fund's operating expenses remain the same. Although your actual costs may be
higher or lower, based on these assumptions your costs would be:

Expense Example (USD $)	Expense Example, with Redemption, 1 Year	Expense Example, with Redemption, 3 Years	Expense Example, with Redemption, 5 Years	Expense Example, with Redemption, 10 Years
Meidell Tactical Advantage ETF	160	979	1,815	3,988

PORTFOLIO TURNOVER

The Fund pays transaction costs, such as commissions, when it buys and sells
securities (or "turns over" its portfolio). A higher portfolio turnover may
indicate higher transaction costs and may result in higher taxes when Fund
shares are held in a taxable account. These costs, which are not reflected in
Total 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 in-kind creations or redemptions of the Fund's shares.
During the most recent fiscal year, the Fund's portfolio turnover rate was 817%
of the average value of its portfolio.

PRINCIPAL INVESTMENT STRATEGIES

The Fund is considered a "fund of funds" that seeks to achieve its investment
objective by primarily investing in other exchange traded funds (the "Underlying
ETFs") that offer diversified exposure to global regions, countries, styles
(market capitalization, value, growth, etc.) or sectors, and other exchange-traded
products ("ETPs"), including, but not limited to, exchange-traded notes ("ETNs"),
exchange-traded currency trusts, and closed-end funds. The Fund primarily invests
in U.S.-listed domestic and foreign equity, fixed income, and commodity ETFs and
ETPs.

American Wealth Management (the "Sub-Advisor") seeks to achieve the Fund's
investment objective by managing a tactical strategy that has the ability to
dynamically rebalance the Fund's portfolio from as much as 100% equity assets to
100% fixed income assets or cash and cash equivalents depending on market
trends. This is a long-only tactical strategy that seeks to minimize portfolio
losses by rotating out of higher volatility assets and into lower volatility
assets when the Sub-Advisor believes there are significant risks in the equity
markets. Risk management is an integral part of the Sub-Advisor's investment
strategy. The Fund will not invest in leveraged or inverse exchange-traded
funds.

The Sub-Advisor uses a quantitative tactical methodology to identify the Underlying
ETFs and ETPs believed to be participating in long-term "durable trends" within the
market. This model enables the Sub- Advisor to evaluate, rank and select the
appropriate mix of investments in Underlying ETFs and ETPs given market conditions.

PRINCIPAL RISKS OF INVESTING IN THE FUND

The Fund is subject to a number of risks that may affect the value of its
shares, including:
  
Allocation Risk. The Fund's particular allocations may have a significant effect
on the Fund's performance. Allocation risk is the risk that the selection of
Underlying ETFs and ETPs and the allocation of assets among such Underlying ETFs
and ETPs will cause the Fund to underperform other funds with a similar
investment objective that do not allocate their assets in the same manner or the
market as a whole.
  
Early Closing Risk. An unanticipated early closing of the NYSE Arca, Inc. may
result in a shareholder's inability to buy or sell shares of the Fund on that
day.
  
ETN Risk. ETNs are senior, unsecured unsubordinated debt securities issued by
an underwriting bank that are designed to provide returns that are linked to a
particular benchmark less investor fees. ETNs have a maturity date and
generally, are backed only by the creditworthiness of the issuer. As a result,
the value of an ETN may be influenced by time to maturity, level of supply and
demand for the ETN, volatility and lack of liquidity in the underlying market
(e.g., the commodities market), changes in the applicable interest rates, and
changes in the issuer's credit rating and economic, legal, political or
geographic events that affect the referenced market. ETNs also may be subject
to commodities market risk and credit risk.
  
Liquidity Risk. Trading in shares of the Fund may be halted because of market
conditions or for reasons that, in the view of the Exchange, make trading in
shares inadvisable. In addition, trading in listed securities is subject to
trading halts caused by extraordinary market volatility pursuant to "circuit
breaker" rules. The Fund's investments in ETNs and certain other ETPs may be
subject to restrictions on the amount and timing of any redemptions, which may
adversely affect the value of the Fund's portfolio holdings.

Market Risk. Due to market conditions, the Fund's investments may fluctuate
significantly from day to day. This volatility may cause the value of your
investment in the Fund to decrease.

Portfolio Turnover Risk. The Fund's investment strategy may result in relatively
high portfolio turnover, which may result in increased transaction costs and may
lower Fund performance.

Tax Risk. In order to qualify for the favorable U.S. federal income tax
treatment accorded to "regulated investment companies," the Fund must derive
at least 90% of its gross income in each taxable year from certain categories of
income ("qualifying income"). Certain of the Fund's investments may generate
income that is not qualifying income. If the Fund were to fail to meet the
qualifying income test and fail to qualify as a regulated investment company, it
would be taxed in the same manner as an ordinary corporation, and distributions
to its shareholders would not be deductible by the Fund in computing its taxable
income.

Trading Risk. Shares of the Fund may trade below their net asset value ("NAV").
The NAV of shares will fluctuate with changes in the market value of the Fund's
holdings. In addition, although the Fund's shares are currently listed on the
Exchange, there can be no assurance that an active trading market for shares
will develop or be maintained.

Underlying Fund Investment Risk. Through its investments in the Underlying ETFs
or ETPs, the Fund will be subject to the risks associated with the Underlying
ETFs' or ETPs' investments, including the possibility that the value of the
securities held by an Underlying ETF or ETP could decrease. These risks include
any combination of the risks described below, although the Fund's exposure to a
particular risk will be proportionate to the Fund's overall allocation and
Underlying ETF or ETP's asset allocation.
  
  Commodities Risk. The commodities industries can be significantly affected by   
  the level and volatility of commodity prices; world events including            
  international monetary and political developments; import controls and worldwide
  competition; exploration and production spending; and tax and other government  
  regulations and economic conditions.                                            

  Concentration Risk. An Underlying ETF or ETP may, at various times, concentrate
  in the securities of a particular industry, group of industries, or sector, and
  when a fund is overweighted in an industry, group of industries, or sector, it  
  may be more sensitive to any single economic, business, political, or regulatory
  occurrence than a fund that is not overweighted in an industry, group of        
  industries, or sector.                                                          

  Credit Risk. Certain of the Underlying ETFs and ETPs are subject to the risk    
  that a decline in the credit quality of a portfolio investment could cause the  
  Underlying ETF's or ETP's share price to fall. The Underlying ETFs and ETPs     
  could lose money if the issuer or guarantor of a portfolio investment or the    
  counterparty to a derivatives contract fails to make timely principal or         
  interest payments or otherwise honor its obligations.                           

  Emerging Markets Risk. There is an increased risk of price volatility associated
  with an Underlying ETF's or ETP's investments in emerging market countries,     
  which may be magnified by currency fluctuations relative to the U.S. dollar.    

  Equity Risk. The prices of equity securities in which an Underlying ETF invests
  rise and fall daily. These price movements may result from factors affecting    
  individual companies, industries or the securities market as a whole.           

  Fixed Income Risk. An Underlying ETF's or ETP's investments in fixed income     
  securities are subject to the risk that the securities may be paid off earlier  
  or later than expected. Either situation could cause the Underlying ETF or ETP  
  to hold securities paying lower- than-market rates of interest, which could hurt
  the Fund's yield or share price.                                                

  Foreign Currency Risk. Currency movements may negatively impact the value of an
  Underlying ETF or ETP security even when there is no change in the value of the
  security in the issuer's home country. Under normal circumstances, the          
  Underlying ETFs and ETPs do not intend to hedge against the risk of currency    
  exchange rate fluctuations, but some Underlying ETFs and ETPs may reserve the   
  right to do so if there is extreme volatility in currency exchange rates.       

  Foreign Securities Risk. An Underlying ETF's or ETP's investments in securities
  of foreign issuers involve certain risks including, but not limited to, risks of
  adverse changes in foreign economic, political, regulatory and other conditions,
  or changes in currency exchange rates or exchange control regulations (including
  limitations on currency movements and exchanges). In certain countries, legal   
  remedies available to investors may be more limited than those available with   
  respect to investments in the United States. In addition, the securities of some
  foreign companies may be less liquid and, at time, more volatile than securities
  of comparable U.S. companies.                                                   

  "Growth" Investing Risk. An Underlying ETF or ETP may pursue a "growth style"
  of  investing. Growth stocks can be volatile for several reasons. Since those       
  companies usually invest a high portion of earnings in their businesses, they   
  may lack the dividends of value stocks that can cushion stock prices in a       
  falling market. The prices of growth stocks are based largely on projections of
  the issuer's future earnings and revenues. If a company's earnings or revenues  
  fall short of expectations, its stock price may fall dramatically.              

  High-Yield Risk. An Underlying ETF or ETP may invest in high-yield securities  
  and unrated securities of similar credit quality (commonly known as "junk       
  bonds"). High-yield securities generally pay higher yields (greater income) than
  investment in higher quality securities; however, high-yield securities and junk
  bonds may be subject to greater levels of interest rate, credit and liquidity   
  risk than funds that do not invest in such securities, and are considered       
  predominantly speculative with respect to an issuer's continuing ability to make
  principal and interest payments.                                                

  Income Risk. An Underlying ETF or ETP may derive dividend and interest income   
  from certain of its investments. This income can vary widely over the short- and
  long-term. If prevailing market interest rates drop, distribution rates of an   
  Underlying ETF's or ETP's income producing investments may decline which then   
  may adversely affect the Fund's value.                                          

  Interest Rate Risk. An Underlying ETF's or ETP's investments in fixed income    
  securities are subject to the risk that interest rates rise and fall over time.
  As with any investment whose yield reflects current interest rates, an          
  Underlying ETF's or ETP's yield will change over time. During periods when      
  interest rates are low, an Underlying ETF's or ETP's yield (and total return)   
  also may be low. To the extent that the investment adviser (or sub-adviser) of  
  an Underlying ETF or ETP anticipates interest rate trends imprecisely, the      
  Underlying ETF or ETP could miss yield opportunities or its share price could   
  fall.                                                                           
  
  Investment Risk. An investment in an Underlying ETF or ETP is not a bank deposit
  and is not insured or guaranteed by the Federal Deposit Insurance Corporation or
  any other government agency. The Fund may experience losses with respect to its
  investment in an Underlying ETF or ETP. Further, there is no guarantee that an  
  Underlying ETF or ETP will be able to achieve its objective.                    

  Large-Capitalization Risk. An Underlying ETF or ETP may invest in large-cap    
  companies. Returns on investments in stocks of large U.S. companies could trail
  the returns on investments in stocks of smaller and mid-sized companies.        

  Mid-Capitalization Risk. An Underlying ETF or ETP may invest in mid-cap        
  companies. Mid-sized companies may be more volatile and more likely than        
  large-capitalization companies to have limited product lines, markets or        
  financial resources, or depend on a few key employees. Returns on investments
  in stocks of mid-size companies could trail the returns on investments in stocks of
  larger or smaller companies.                                                    

  Small-Capitalization Risk. An Underlying ETF or ETP may invest in small-cap    
  companies. Small- capitalization companies may be more vulnerable than larger,  
  more established organizations to adverse business or economic developments.
  In particular, small- capitalization companies may have limited product lines,     
  markets, and financial resources and may be dependent upon a relatively small   
  management group. These securities may be listed on an exchange or trade        
  over-the-counter, and may or may not pay dividends. During a period when        
  small-cap stocks fall behind other types of investments - large-cap stocks, for
  instance - the Underlying ETF's or ETP's performance could be reduced.          

  "Value" Investing Risk. Because it may invest in value stocks, the Fund could   
  suffer losses or produce poor results relative to other funds, even in a rising
  market, if the Sub-Advisor's assessment of a company's value or prospects for   
  exceeding earnings expectations or market conditions is wrong.                  

As with any fund, there is no guarantee that the Fund will achieve its
investment objective.

FUND PERFORMANCE

A comparison of the Fund's performance with that of a broad measure of market
performance may give some indication of the risks of an investment in the Fund;
however, the Fund is new and, therefore, does not have a performance history for
a full calendar year. Of course, once the Fund has performance, this past
performance (before and after taxes) does not necessarily indicate how the Fund
will perform in the future.
  
Updated performance information is available on the Fund's website at
www.advisorshares.com.

[1] As a shareholder in certain Underlying ETFs (the "Acquired Funds"), the Fund will indirectly bear its proportionate share of the fees and expenses of the Acquired Funds. "Acquired Fund Fees and Expenses" do not reflect the operating expenses of exchange-traded products in which the fund invests that are not investment companies, including exchange-traded notes and certain exchange-traded pooled investment vehicles not registered pursuant to the Investment Company Act of 1940, as amended (the "1940 Act").

[2] The Total Annual Fund Operating Expenses and Total Annual Fund Operating Expenses After Fee Waiver in this fee table may not correlate to the expense ratios in the Fund's financial highlights (and the Fund's financial statements) because the financial highlights include only the Fund's direct operating expenses and do not include Acquired Fund Fees and Expenses, which are fees and expenses incurred indirectly by the Fund through its investments in the Acquired Funds.

[3] AdvisorShares Investments, LLC (the "Advisor") has contractually agreed to reduce its fees and/or reimburse expenses in order to keep net expenses (excluding interest, taxes, brokerage commissions, Acquired Fund Fees and Expenses, and extraordinary expenses) from exceeding 1.35% of the Fund's average daily net assets for a year from the date of this Prospectus and for an indefinite period thereafter subject to annual approval by the AdvisorShares Trust Board of Trustees (the "Board"). This agreement is limited to the Fund's direct operating expenses and, therefore, does not apply to "Acquired Fund Fees and Expenses." The expense limitation agreement (i) may be terminated at any time by the Board, and (ii) will be terminated upon termination of the investment advisory agreement between the Advisor and the Fund.

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Accuvest Global Opportunities ETF (Prospectus Summary) | Accuvest Global Opportunities ETF

ACCUVEST GLOBAL OPPORTUNITIES ETF

INVESTMENT OBJECTIVE

The Accuvest Global Opportunities ETF (the "Fund") seeks long-term capital
appreciation in excess of global equity benchmarks such as the MSCI All
Country World Index.

FUND FEES AND EXPENSES

This table describes the fees and expenses that you may pay if you buy and hold
shares of the Fund. Most investors will incur customary brokerage commissions
when buying or selling shares of the Fund, which are not reflected in the table
below.

SHAREHOLDER FEES (fees paid directly from your investment) None

ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses		Accuvest Global Opportunities ETF
MANAGEMENT FEES		0.95%
DISTRIBUTION (12b-1) FEES		none
OTHER EXPENSES		1.32%
ACQUIRED FUND FEES AND EXPENSES	[1]	0.52%
TOTAL ANNUAL FUND OPERATING EXPENSES	[2]	2.79%
FEE WAIVER AND/OR EXPENSE REIMBURSEMENT	[3]	1.02%
TOTAL ANNUAL FUND OPERATING EXPENSES AFTER FEE WAIVER AND/OR EXPENSE REIMBURSEMENT	[2]	1.77%

EXAMPLE

This Example is intended to help you compare the cost of investing in the shares
of the Fund with the cost of investing in other funds. This Example does not
take into account creation or redemption transaction fees, or the brokerage
commissions that you pay when purchasing or selling shares of the Fund. If
commissions were included, your costs would be higher.

The Example assumes that you invest $10,000 in the Fund for the time periods
indicated and then sell all of your shares at the end of those periods. The
Example also assumes that your investment has a 5% return each year and that the
Fund's operating expenses remain the same. Although your actual costs may be
higher or lower, based on these assumptions your costs would be:

Expense Example (USD $)	Expense Example, with Redemption, 1 Year	Expense Example, with Redemption, 3 Years	Expense Example, with Redemption, 5 Years	Expense Example, with Redemption, 10 Years
Accuvest Global Opportunities ETF	180	769	1,384	3,045

PORTFOLIO TURNOVER

The Fund pays transaction costs, such as commissions, when it buys and sells
securities (or "turns over" its portfolio). A higher portfolio turnover may
indicate higher transaction costs and may result in higher taxes when Fund
shares are held in a taxable account. These costs, which are not reflected
in Total 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 in-kind creations or redemptions of the Fund's shares.
For the period from January 25, 2012, the Fund's commencement of operations,
through the most recent fiscal year ended June 30, 2012, the Fund's portfolio
turnover rate was 135% of the average value of its portfolio.

PRINCIPAL INVESTMENT STRATEGIES

The Fund is a "fund of funds" that seeks to achieve its investment objective by
investing primarily in other exchange traded funds (the "Underlying ETFs").
Accuvest Global Advisors (the "Sub-Advisor") seeks to achieve the Fund's
investment objective by investing in Underlying ETFs that provide diversified
exposure to select economies around the world. The Sub-Advisor ranks countries
on a monthly basis using its proprietary country ranking model in order to
determine their relative attractiveness. The Sub-Advisor then endeavors to
invest in Underlying ETFs, which may be both affiliated and unaffiliated with
the Fund, that individually or in combination correspond generally to the price
and yield performance of the specific countries (or regions) identified as most
attractive by the model. The Sub-Advisor believes that attractive returns can
only be achieved by actively structuring portfolios distinct from simply
tracking market indices. As a result, the Fund's portfolio will be invested only
in countries with the highest rankings as identified by the Sub-Advisor's
proprietary country ranking process.

PRINCIPAL RISKS OF INVESTING IN THE FUND

The Fund is subject to a number of risks that may affect the value of its
shares, including:
  
Allocation Risk. The Fund's particular allocations may have a significant effect
on the Fund's performance. Allocation risk is the risk that the selection of the
Underlying ETFs and the allocation of assets among the Underlying ETFs will
cause the Fund to underperform other funds with a similar investment objective
that do not allocate their assets in the same manner or the market as a whole.
  
Early Closing Risk. An unanticipated early closing of the NYSE Arca, Inc. (the
"Exchange") may result in a shareholder's inability to buy or sell shares of the
Fund on that day.
  
Investment Risk. As with all investments, an investment in the Fund is subject
to investment risk. Investors in the Fund could lose money, including the
possible loss of the entire principal amount of an investment, over short or
even long periods of time.
  
Liquidity Risk. Trading in shares of the Fund may be halted because of market
conditions or for reasons that, in the view of the Exchange, make trading in
shares inadvisable. In addition, trading in listed securities is subject to
trading halts caused by extraordinary market volatility pursuant to "circuit
breaker" rules. The Fund's investments in ETNs and certain other ETPs may be
subject to restrictions on the amount and timing of any redemptions, which may
adversely affect the value of the Fund's portfolio holdings.
  
Market Risk. Due to market conditions, the Fund's investments may fluctuate
significantly from day to day. This volatility may cause the value of your
investment in the Fund to decrease.

Tax Risk. In order to qualify for the favorable U.S. federal income tax treatment
accorded to "regulated investment companies," the Fund must derive at least 90%
of its gross income in each taxable year from certain categories of income
("qualifying income"). Certain of the Fund's investments may generate income
that is not qualifying income. If the Fund were to fail to meet the qualifying
income test and fail to qualify as a regulated investment company, it would be
taxed in the same manner as an ordinary corporation, and distributions to its
shareholders would not be deductible by the Fund in computing its taxable
income.
  
Trading Risk. Shares of the Fund may trade below their net asset value ("NAV").
The NAV of shares will fluctuate with changes in the market value of the Fund's
holdings. In addition, although the Fund's shares are currently listed on the
Exchange, there can be no assurance that an active trading market for shares
will develop or be maintained.
  
Underlying ETF Investment Risk. Through its investments in the Underlying ETFs,
the Fund will be subject to the risks associated with the Underlying ETFs'
investments, including the possibility that the value of the securities held
by an Underlying ETF could decrease. These risks include any combination of
the risks described below. The Fund's exposure to a particular risk will be
proportionate to the Fund's overall allocation to the Underlying ETFs and the
Underlying ETFs' exposure to various security types, currencies, market sectors
and geographic regions.
  
  Emerging Markets Risk. There is an increased risk of price volatility          
  associated with an Underlying ETF's investments in, or exposure to, emerging    
  market countries, which may be magnified by currency fluctuations relative to   
  the U.S. dollar.                                                                

  Equity Risk. The prices of equity securities in which an Underlying ETF invests,
  or is exposed to, rise and fall daily. These price movements may result from
  factors affecting individual companies, industries or the securities market
  as a whole.                                                                     

  Fixed Income Risk. An Underlying ETF's investments in fixed income securities  
  are subject to the risk that the securities may be paid off earlier or later    
  than expected. Either situation could cause the Underlying ETF to hold          
  securities paying lower-than-market rates of interest, which could hurt the     
  Fund's yield or share price.                                                    

  Foreign Currency Risk. Currency movements may negatively impact the value of
  an Underlying ETF security even when there is no change in the value of the        
  security in the issuer's home country. Certain of the Underlying ETFs may not   
  hedge against the risk of currency exchange rate fluctuations, while other      
  Underlying ETFs may if there is volatility in currency exchange rates.          

  Foreign Securities Risk. An Underlying ETF's investments in, or exposure to,   
  foreign issuers involve certain risks including, but not limited to, risks of   
  adverse changes in foreign economic, political, regulatory and other conditions,
  or changes in currency exchange rates or exchange control regulations (including
  limitations on currency movements and exchanges). In certain countries, legal   
  remedies available to investors may be more limited than those available with   
  respect to investments in the United States. In addition, the securities of some
  foreign companies may be less liquid and, at times, more volatile than          
  securities of comparable U.S. companies.                                        

  Geographic Investment Risk. Each Underlying ETF invests a significant portion of
  its assets in the securities of issuers organized in one or more jurisdictions  
  around the world, or in securities or instruments that provide exposure to such
  issuers. As such, each Underlying ETF is likely to be impacted by economic      
  conditions or events affecting the particular market or markets reflected by its
  name. For example, political and economic conditions and changes in regulatory,
  tax, or economic policy in a country could significantly affect the market in   
  that country and in surrounding or related countries and have a negative impact
  on the Underlying ETF's performance. Initially the Fund is expected to have     
  significant exposure to the regions listed below. The Sub-Advisor anticipates,  
  however, that the Fund's exposure to particular regions and countries will vary
  greatly and may change frequently.                                              

    ASIA. To the extent an Underlying ETF's investments have significant investment
    exposure to Asia, the Underlying ETF will be susceptible to loss due to adverse
    market, political, regulatory, and geographic events affecting that region.
    While certain Asian economies are exemplars of growth and development others
    have been and continue to be subject, to some extent, to over-extension of
    credit, currency devaluations and restrictions, high unemployment, high
    inflation, decreased exports and economic recessions.

    EASTERN EUROPE. An Underlying ETF's investments may have significant exposure
    to companies located in Eastern Europe. Because of this, companies in the
    Underlying ETF's portfolio may react similarly to political, social, and
    economic developments in any of the Eastern European countries.

    EUROPE. Developed and emerging market countries in Europe will be significantly
    affected by the fiscal and monetary controls of the European Monetary Union.
    Changes in regulations on trade, decreasing imports or exports, changes in the
    exchange rate of the euro and recessions among European countries may have a
    significant adverse effect on the economies of other European countries.
  
    PACIFIC REGION. Many of the Pacific region economies can be exposed to high
    inflation rates, undeveloped financial services sectors, and heavy reliance on
    international trade. The region's economies are also dependent on the economies
    of Asia, Europe and the United States and, in particular, on the price and
    demand for agricultural products and natural resources.

    NORTH AMERICA. The United States is Canada's largest trading and investment
    partner and the Canadian economy is significantly affected by developments in
    the U.S. economy. The United States is also a significant trading partner of
    many emerging markets in which the Underlying ETFs invest. Decreasing U.S.
    imports, new trade regulations, changes in the U.S. dollar exchange rates or
    a recession in the United States may have an adverse impact on these markets.
  
  Investment Risk. Similar to an investment in the Fund, an investment in an      
  Underlying ETF is not a bank deposit and is not insured or guaranteed by the    
  Federal Deposit Insurance Corporation or any other government agency. The Fund  
  may experience losses with respect to its investment in an Underlying ETF.      
  Further, there is no guarantee that an Underlying ETF will achieve its          
  investment objective.                                                           
  
  Large-Capitalization Risk. An Underlying ETF may invest in large-capitalization
  companies. Returns on investments in stocks of large U.S. companies could trail
  the returns on investments in stocks of small- and mid-capitalization companies
  or the market as a whole.                                                       
  
  Mid-Capitalization Risk. An Underlying ETF may invest in mid-capitalization    
  companies. Mid-cap companies may be more volatile and more likely than large-cap
  companies to have limited product lines, markets or financial resources, or     
  depend on a few key employees. Returns on investments in stocks of mid-cap      
  companies could trail the returns on investments in stocks of large- or         
  small-cap companies or the market as a whole.                                   
  
  Small-Capitalization Risk. An Underlying ETF may invest in small-capitalization
  companies. Small-cap companies may be more vulnerable than larger, more         
  established organizations to adverse business or economic developments. In      
  particular, small-cap companies may have limited product lines, markets, and    
  financial resources and may be dependent upon a relatively small management     
  group. These securities may be listed on an exchange or trade over-the-counter,
  and may or may not pay dividends. During a period when the performance of       
  small-cap stocks falls behind that of other types of investments, such as       
  large-cap stocks, the Underlying ETF's performance could be adversely affected.

  Tracking Error Risk. Tracking error can arise due to factors such as the effect
  of transaction fees and expenses incurred by the Underlying ETF, changes in     
  composition of the benchmark, and the ability of the ETF manager or sponsor to  
  successfully implement his or her investment strategy.                          

As with any fund, there is no guarantee that the Fund will achieve its
investment objective.

FUND PERFORMANCE

A comparison of the Fund's performance with that of a broad measure of market
performance may give some indication of the risks of an investment in the Fund;
however, the Fund is new and, therefore, does not have a performance history
for a full calendar year. Of course, once the Fund has performance, this past
performance (before and after taxes) does not necessarily indicate how the Fund
will perform in the future.
  
Updated performance information is available on the Fund's website at
www.advisorshares.com.

[1] As a shareholder in certain Underlying ETFs (the "Acquired Funds"), the Fund will indirectly bear its proportionate share of the fees and expenses of the Acquired Funds. "Acquired Fund Fees and Expenses" do not reflect the operating expenses of exchange traded products that are not investment companies in which the Fund invests, including exchange traded notes and exchange traded pooled investment vehicles not registered pursuant to the Investment Company Act of 1940, as amended (the "1940 Act").

[2] The Total Annual Fund Operating Expenses and Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement in this fee table may not correlate to the expense ratios in the Fund's financial highlights (and the Fund's financial statements) because the financial highlights include only the Fund's direct operating expenses and do not include Acquired Fund Fees and Expenses.

[3] AdvisorShares Investments, LLC (the "Advisor") has contractually agreed to reduce its fees and/or reimburse expenses in order to keep net expenses (excluding interest expense, taxes, brokerage commissions, Acquired Fund Fees and Expenses, and extraordinary expenses) from exceeding 1.25% of the Fund's average daily net assets for a year from the date of this Prospectus and for an indefinite period thereafter subject to annual approval by the AdvisorShares Trust Board of Trustees (the "Board"). The expense limitation agreement (i) may be terminated at any time by the Board and (ii) will be terminated upon termination of the investment advisory agreement between the Advisor and the Fund.

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Ranger Equity Bear ETF (Prospectus Summary) | Ranger Equity Bear ETF

RANGER EQUITY BEAR ETF

INVESTMENT OBJECTIVE

The Ranger Equity Bear ETF (the "Fund") seeks capital appreciation through short
sales of domestically traded equity securities.

FUND FEES AND EXPENSES

This table describes the fees and expenses that you may pay if you buy and hold
shares of the Fund. Most investors will incur customary brokerage commissions
when buying or selling shares of the Fund, which are not reflected in the table
below.

SHAREHOLDER FEES (fees paid directly from your investment) None

ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses		Ranger Equity Bear ETF
MANAGEMENT FEES		1.50%
DISTRIBUTION (12b-1) FEES		none
Short Interest Expense		1.37%
Other Expenses		0.19%
TOTAL OTHER EXPENSES		1.56%
ACQUIRED FUND FEES AND EXPENSES	[1]	0.24%
TOTAL ANNUAL FUND OPERATING EXPENSES	[2]	3.30%

EXAMPLE

This Example is intended to help you compare the cost of investing in the shares
of the Fund with the cost of investing in other funds. This Example does not
take into account creation or redemption transaction fees, or the brokerage
commissions that you pay when purchasing or selling shares of the Fund. If the
commissions were included, your costs would be higher.

The Example assumes that you invest $10,000 in the Fund for the time periods
indicated and then sell all of your shares at the end of those periods. The
Example also assumes that your investment has a 5% return each year and that the
Fund's operating expenses remain the same. Although your actual costs may be
higher or lower, based on these assumptions your costs would be:

Expense Example (USD $)	Expense Example, with Redemption, 1 Year	Expense Example, with Redemption, 3 Years	Expense Example, with Redemption, 5 Years	Expense Example, with Redemption, 10 Years
Ranger Equity Bear ETF	333	1,016	1,722	3,596

PORTFOLIO TURNOVER

The Fund pays transaction costs, such as commissions, when it buys and sells
securities (or "turns over" its portfolio). A higher portfolio turnover may
indicate higher transaction costs and may result in higher taxes when Fund
shares are held in a taxable account. These costs, which are not reflected
in Total 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 in-kind creations or redemptions of the Fund's shares.
During the most recent fiscal year ended June 30, 2012, the Fund's portfolio
turnover rate was 756% of the average value of its portfolio.

PRINCIPAL INVESTMENT STRATEGIES

Ranger Alternative Management, L.P. (the "Sub-Advisor") seeks to achieve the
Fund's investment objective by short selling a portfolio of liquid mid- and
large-cap U.S. exchange-traded equity securities, exchange-traded funds ("ETFs")
registered pursuant to the 1940 Act, exchange-traded notes ("ETNs") and other
exchange-traded products ("ETPs"). The Sub-Advisor implements a bottom-up,
fundamental, research driven security selection process that seeks to identify
securities with low earnings quality or aggressive accounting that may tend to
mask operational deterioration and bolster the reported earnings per share over
a short time period. In addition to these issues, the Sub-Advisor seeks to
identify earnings driven events that may act as a catalyst to the price decline
of a security, such as downwards earnings revisions or reduced forward earnings
outlook. On a day-to-day basis, the Fund may hold U.S. government securities,
short-term high quality fixed income securities, money market instruments,
overnight and fixed-term repurchase agreements, cash and cash equivalents with
maturities of one year or less for investment purposes and to cover its short
positions.

In addition to extensive quantitative analysis, careful consideration is given
to qualitative analysis. The assessment of the management team, accounting
practices, corporate governance and the company's competitive advantage are all
key items. Once these quantitative and qualitative characteristics are thoroughly
analyzed, the Sub-Advisor then determines if there is sufficient return to the
stock price to warrant an investment. Once a position is included in the Fund's
portfolio, it is subject to regular fundamental and technical risk management
review. This continual review process seeks to identify problem positions early
and enhances performance by removing them before they become significant issues
for the portfolio.

PRINCIPAL RISKS OF INVESTING IN THE FUND

The Fund is subject to a number of risks that may affect the value of its
shares, including:

Early Closing Risk. An unanticipated early closing of the NYSE Arca, Inc. (the
"Exchange") may result in a shareholder's inability to buy or sell shares of
the Fund on that day.

Equity Risk. The prices of equity securities in which the Fund holds short
positions may rise and fall daily. These price movements may result from factors
affecting individual issuers, industries or the stock market as a whole.

Exchange-Traded Vehicle Risk. The Fund may invest in (or short) ETFs, ETNs and
ETPs. Through its positions in ETFs, ETNs and ETPs, the Fund will be subject to
the risks associated with such vehicles, investments, or reference assets in the
case of ETNs, including the possibility that the value of the securities or
instruments held by an ETF, ETN or ETP could decrease (or increase in the case
of short positions). Lack of liquidity in an ETP, ETN, or ETF can result in its
value being more volatile than the underlying portfolio investment. In addition,
certain of the ETPs, ETFs, or ETNs may hold common portfolio positions, thereby
reducing any diversification benefits.

Fixed Income Risk. The Fund may be exposed to fixed income risk through its
short positions in ETFs and ETPs that primarily invest in, or have exposure to,
fixed income securities. The value of an ETF's or ETP's portfolio of fixed
income securities will change in response to interest rate changes and other
factors, such as the perception of the issuers' creditworthiness. During periods
of falling interest rates, the value of outstanding fixed income securities
generally rise. Conversely, during periods of rising interest rates, the value
of fixed income securities generally decline.
  
Issuer Risk. From time to time the Fund may have exposure via its short
positions to a limited number of issuers. During such times, the Fund is more
susceptible to the risk that an issuer's securities may appreciate in value.

Liquidity Risk. Trading in shares of the Fund may be halted because of market
conditions or for reasons that, in the view of the Exchange, make trading in
shares inadvisable. In addition, trading in listed securities is subject to
trading halts caused by extraordinary market volatility pursuant to "circuit
breaker" rules. The Fund's investments in ETNs and certain other ETPs may be
subject to restrictions on the amount and timing of any redemptions, which may
adversely affect the value of the Fund's portfolio holdings.

Market Risk. Due to market conditions, the Fund's investments may fluctuate
significantly from day to day. This volatility may cause the value of your
investment in the Fund to decrease.

Mid-Capitalization and Large-Capitalization Risk. The Fund is subject to the
risk that medium and large-cap stocks may outperform other segments of the
equity market or the equity market as a whole.

Portfolio Turnover Risk. The Fund's investment strategy may result in relatively
high portfolio turnover, which may result in increased transaction costs and may
lower Fund performance.

Short Sales Risk. Short sales are transactions in which the Fund sells a security
it does not own. To complete the transaction, the Fund must borrow the security to
make delivery to the buyer. The Fund is then obligated to replace the security
borrowed by purchasing the security at the market price at the time of replacement.
The price at such time may be higher or lower than the price at which the security
was sold by the Fund. If the underlying security goes down in price between the
time the Fund sells the security and buys it back, the Fund will realize a gain
on the transaction. Conversely, if the underlying security goes up in price during
the period, the Fund will realize a loss on the transaction. Any such loss is
increased by the amount of premium or interest the Fund must pay to the lender of
the security. Likewise, any gain will be decreased by the amount of premium or
interest the Fund must pay to the lender of the security. Because a short position
loses value as the security's price increases, the loss on a short sale is
theoretically unlimited. Short sales involve leverage because the Fund borrows
securities and then sells them, effectively leveraging its assets. The use of
leverage may magnify gains or losses for the Fund.

Trading Risk. Shares of the Fund may trade below their net asset value ("NAV").
The NAV of shares will fluctuate with changes in the market value of the Fund's
holdings. In addition, although the Fund's shares are currently listed on the
Exchange, there can be no assurance that an active trading market for shares
will develop or be maintained.

As with any fund, there is no guarantee that the Fund will achieve its investment
objective.

FUND PERFORMANCE

A comparison of the Fund's performance with that of a broad measure of market
performance may give some indication of the risks of an investment in the Fund;
however, the Fund is new and, therefore, does not have a performance history for
a full calendar year. Of course, once the Fund has performance, this past
performance (before and after taxes) does not necessarily indicate how the Fund
will perform in the future.

Updated performance information is available on the Fund's website at
www.advisorshares.com.

[1] As a shareholder in certain ETFs (the "Acquired Funds"), the Fund will indirectly bear its proportionate share of the fees and expenses of the Acquired Funds. "Acquired Fund Fees and Expenses" do not reflect the operating expenses of exchange-traded products in which the Fund invests that are not investment companies, including ETNs and exchange-traded pooled investment vehicles not registered pursuant to the Investment Company Act of 1940, as amended (the "1940 Act").

[2] The Total Annual Fund Operating Expenses in this fee table may not correlate to the expense ratios in the Fund's financial highlights (and the Fund's financial statements) because the financial highlights include only the Fund's direct operating expenses and do not include Acquired Fund Fees and Expenses.

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Accuvest Global Long Short ETF (Prospectus Summary) | Accuvest Global Long Short ETF

ACCUVEST GLOBAL LONG SHORT ETF

INVESTMENT OBJECTIVE

The Accuvest Global Long Short ETF (the "Fund") seeks to provide average annual
returns in excess of the total return of the MSCI World Index (the "Index").

FUND FEES AND EXPENSES

This table describes the fees and expenses that you may pay if you buy and hold
shares of the Fund. Most investors will incur customary brokerage commissions
when buying or selling shares of the Fund, which are not reflected in the table
below.

SHAREHOLDER FEES (fees paid directly from your investment) None

ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses		Accuvest Global Long Short ETF
MANAGEMENT FEES		1.35%
DISTRIBUTION (12b-1) FEES		none
Short Interest Expense		4.27%
Other Expenses		2.53%
TOTAL OTHER EXPENSES		6.80%
ACQUIRED FUND FEES AND EXPENSES	[1]	0.09%
TOTAL ANNUAL FUND OPERATING EXPENSES	[2]	8.24%
FEE WAIVER AND/OR EXPENSE REIMBURSEMENT	[3]	2.38%
TOTAL ANNUAL FUND OPERATING EXPENSES AFTER FEE WAIVER AND/OR EXPENSE REIMBURSEMENT	[2]	5.86%

EXAMPLE

This Example is intended to help you compare the cost of investing in the shares
of the Fund with the cost of investing in other funds. This Example does not
take into account creation or redemption transaction fees, or the brokerage
commissions that you pay when purchasing or selling shares of the Fund. If
commissions were included, your costs would be higher.
  
The Example assumes that you invest $10,000 in the Fund for the time periods
indicated and then sell all of your shares at the end of those periods. The
Example also assumes that your investment has a 5% return each year and that the
Fund's operating expenses remain the same. Although your actual costs may be
higher or lower, based on these assumptions your costs would be:

Expense Example (USD $)	Expense Example, with Redemption, 1 Year	Expense Example, with Redemption, 3 Years	Expense Example, with Redemption, 5 Years	Expense Example, with Redemption, 10 Years
Accuvest Global Long Short ETF	583	2,165	3,645	6,946

PORTFOLIO TURNOVER

The Fund pays transaction costs, such as commissions, when it buys and sells
securities (or "turns over" its portfolio). A higher portfolio turnover may
indicate higher transaction costs and may result in higher taxes when Fund
shares are held in a taxable account. These costs, which are not reflected in
Total 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 in-kind creations or redemptions of the Fund's shares.
During the most recent fiscal year, the Fund's portfolio turnover rate was 365%
of the average value of its portfolio.

PRINCIPAL INVESTMENT STRATEGIES

The Fund is considered a "fund of funds" that seeks to achieve its investment
objective by primarily investing in both long and short positions in other
exchange traded funds (the "Underlying ETFs") that offer diversified exposure to
global regions, countries, styles (market capitalization, value, growth, etc.)
or sectors, and other exchange-traded products ("ETPs"), including, but not
limited to, exchange-traded notes ("ETNs") and exchange-traded currency trusts.

Accuvest Global Advisors (the "Sub-Advisor") seeks to achieve the Fund's investment
objective by taking long positions in the Underlying ETFs that invest in what it
believes to be the most relatively attractive global regions and countries within
those regions and by taking short positions, by entering into short sales, in the
Underlying ETFs that invest in what it believes to be the most relatively
unattractive global regions and countries within those regions. In establishing
such positions, the Fund seeks to profit from the relative performance between the
long and short positions in global regions, countries, styles or sectors. From time
to time, the Fund may have directional exposure to seek to profit by being net long
when stock markets are rising and net short when markets are falling.

PRINCIPAL RISKS OF INVESTING IN THE FUND

The Fund is subject to a number of risks that may affect the value of its
shares, including:

Allocation Risk. The Fund's particular allocations may have a significant effect
on the Fund's performance. Allocation risk is the risk that the selection of
Underlying ETFs and ETPs and the allocation of assets among such Underlying ETFs
and ETPs will cause the Fund to underperform other funds with a similar investment
objective that do not allocate their assets in the same manner or the market as
a whole.

Early Closing Risk. An unanticipated early closing of the NYSE Arca, Inc. (the
"Exchange") may result in a shareholder's inability to buy or sell shares of the
Fund on that day.

ETN Risk. ETNs are senior, unsecured unsubordinated debt securities issued by an
underwriting bank that are designed to provide returns that are linked to a
particular benchmark less investor fees. ETNs have a maturity date and generally,
are backed only by the creditworthiness of the issuer. As a result, the value of
an ETN may be influenced by time to maturity, level of supply and demand for the
ETN, volatility and lack of liquidity in the underlying market (e.g., the
commodities market), changes in the applicable interest rates, and changes in the
issuer's credit rating and economic, legal, political or geographic events that
affect the referenced market. ETNs also may be subject to commodities market risk
and credit risk.

Liquidity Risk. Trading in shares of the Fund may be halted because of market
conditions or for reasons that, in the view of the Exchange, make trading in
shares inadvisable. In addition, trading in listed securities is subject to
trading halts caused by extraordinary market volatility pursuant to "circuit
breaker" rules. The Fund's investments in ETNs and certain other ETPs may be
subject to restrictions on the amount and timing of any redemptions, which may
adversely affect the value of the Fund's portfolio holdings.
  
Portfolio Turnover Risk. The Fund's investment strategy may result in relatively
high portfolio turnover, which may result in increased transaction costs and may
lower Fund performance.

Short Sales Risk. Short sales are transactions in which the Fund sells a security
it does not own. To complete the transaction, the Fund must borrow the security
to make delivery to the buyer. The Fund is then obligated to replace the security
borrowed by purchasing the security at the market price at the time of replacement.
The price at such time may be higher or lower than the price at which the security
was sold by the Fund. If the underlying security goes down in price between the
time the Fund sells the security and buys it back, the Fund will realize a gain on
the transaction. Conversely, if the underlying security goes up in price during the
period, the Fund will realize a loss on the transaction. Any such loss is increased
by the amount of premium or interest the Fund must pay to the lender of the security.
Likewise, any gain will be decreased by the amount of premium or interest the Fund
must pay to the lender of the security. Because a short position loses value as the
security's price increases, the loss on a short sale is theoretically unlimited.
Short sales involve leverage because the Fund borrows securities and then sells them,
effectively leveraging its assets. The use of leverage may magnify gains or losses
for the Fund.

Tax Risk. In order to qualify for the favorable U.S. federal income tax treatment
accorded to "regulated investment companies," the Fund must derive at least 90%
of its gross income in each taxable year from certain categories of income ("qualifying
income"). Certain of the Fund's investments may generate income that is not qualifying
income. If the Fund were to fail to meet the qualifying income test and fail to
qualify as a regulated investment company, it would be taxed in the same manner as an
ordinary corporation, and distributions to its shareholders would not be deductible by
the Fund in computing its taxable income.

Trading Risk. Shares of the Fund may trade below their net asset value ("NAV").
The NAV of shares will fluctuate with changes in the market value of the Fund's
holdings. In addition, although the Fund's shares are currently listed on the
Exchange, there can be no assurance that an active trading market for shares
will develop or be maintained.

Underlying ETF and ETP Investment Risk. Through its investments in the
Underlying ETFs and ETPs, the Fund will be subject to the risks associated with
such investment vehicles' investments, or reference assets in the case of ETNs,
including the possibility that the value of the securities or instruments held
or tracked by an Underlying ETF or ETP could decrease. These risks include any
combination of the risks described below. The Fund's exposure to a particular
risk will be proportionate to the Fund's overall allocation to the Underlying
ETFs or ETPs and their exposure to various security types, currencies, market
sectors and geographic regions.

  Commodity Risk. Because certain of the Underlying ETFs and ETPs may have a
  significant portion of their assets exposed directly or indirectly to
  commodities or commodity-linked securities, developments affecting commodities
  may have a disproportionate impact on such Underlying ETF and ETPs. An Underlying
  ETF's or ETP's investment in commodities or commodity-linked derivative
  instruments may subject the Underlying ETF or ETP (and indirectly the Fund) to
  greater volatility than investments in traditional securities, particularly if
  the instruments involve leverage. The value of commodities and commodity-linked
  derivative instruments may be affected by changes in overall market movements,
  commodity index volatility, changes in interest rates, or factors affecting a
  particular industry or commodity, such as drought, floods, weather, livestock
  disease, embargoes, tariffs and international economic, political and regulatory
  developments.

  Credit Risk. Certain of the Underlying ETFs and ETPs are subject to the risk
  that a decline in the credit quality of a portfolio investment or a counterparty
  to a portfolio investment could cause the Underlying ETF's or ETP's share price
  to fall. The Underlying ETFs and ETPs could lose money if the issuer or guarantor
  of a portfolio investment or the counterparty to a derivatives contract fails to   
  make timely principal or interest payments or otherwise honor its obligations.
  
  Emerging Markets Risk. There is an increased risk of price volatility
  associated with an Underlying ETF's or ETP's investments in, or an ETN's
  exposure to, emerging market countries, which may be magnified by currency
  fluctuations relative to the U.S. dollar.

  Equity Risk. The prices of equity securities in which an Underlying ETF invests,
  or an ETP is exposed to, rise and fall daily. These price movements may result
  from factors affecting individual companies, industries or the securities market
  as a whole.

  Fixed Income Risk. An Underlying ETF's investments in, or an ETP's exposure to,
  fixed income securities are subject to the risk that the securities may be paid
  off earlier or later than expected. Either situation could cause the Underlying
  ETF or ETP to hold securities paying lower-than-market rates of interest, which
  could hurt the Fund's yield or share price.

  Foreign Currency Risk. Currency movements may negatively impact the value of an
  Underlying ETF or ETP portfolio security even when there is no change in the
  value of the security in the issuer's home country. Certain of the Underlying
  ETFs and ETPs may not hedge against the risk of currency exchange rate
  fluctuations, while other Underlying ETFs or ETPs may if there is volatility in
  currency exchange rates.

  Foreign Securities Risk. An Underlying ETF's investments in, or an ETP's
  exposure to, foreign issuers involve certain risks including, but not limited
  to, risks of adverse changes in foreign economic, political, regulatory and
  other conditions, or changes in currency exchange rates or exchange control
  regulations (including limitations on currency movements and exchanges). In
  certain countries, legal remedies available to investors may be more limited
  than those available with respect to investments in the United States. In
  addition, the securities of some foreign companies may be less liquid and, at
  times, more volatile than securities of comparable U.S. companies.

  Investment Risk. The Fund may experience losses with respect to its investment
  in an Underlying ETF or ETP. Further, there is no guarantee that an ETP will  
  achieve its objective.

  Interest Rate Risk. An Underlying ETF's investments in, or an ETP's exposure to,
  fixed income securities are subject to the risk that interest rates rise and
  fall over time. As with any investment whose yield reflects current interest
  rates, an Underlying ETF's or ETP's yield will change over time. During periods
  when interest rates are low, an Underlying ETF's or ETP's yield (and total
  return) also may be low. To the extent that the investment adviser (or  
  sub-adviser) of an Underlying ETF or issuer of an ETP anticipates interest rate
  trends imprecisely, the Underlying ETF or ETP could miss yield opportunities or
  its share price could fall.

  Large-Capitalization Risk. An Underlying ETF may invest in large-capitalization  
  companies. Returns on investments in stocks of large U.S. companies could trail
  the returns on investments in stocks of small- and mid-capitalization companies  
  or the market as a whole.

  Mid-Capitalization Risk. An Underlying ETF may invest in mid-capitalization
  companies. Mid-cap companies may be more volatile and more likely than large-cap
  companies to have limited product lines, markets or financial resources, or
  depend on a few key employees. Returns on investments in stocks of mid-cap
  companies could trail the returns on investments in stocks of large- or
  small-cap companies or the market as a whole.

  Real Estate Investment Trusts (REITs) Risk. Certain of the Underlying ETFs
  invest in REITs. An Underlying ETF's investments in REITs will be subject to the
  risks associated with the direct ownership of real estate. 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. REITs
  are more dependent upon specialized management skills, have limited diversification   
  and are, therefore, generally dependent on their ability to generate cash flow to
  make distributions to shareholders. In addition, REITs have their own expenses,
  and the Underlying Fund will bear a proportionate share of those expenses.

  Small-Capitalization Risk. An Underlying ETF may invest in small-capitalization
  companies. Small-cap companies may be more vulnerable than larger, more established
  organizations to adverse business or economic developments. In particular, small-cap
  companies may have limited product lines, markets, and financial resources and may
  be dependent upon a relatively small management group. These securities may be
  listed on an exchange or trade over-the-counter, and may or may not pay dividends.
  During a period when the performance of small-cap stocks falls behind that of other
  types of investments, such as large-cap stocks, the Underlying ETF's performance  
  could be adversely affected.

As with any fund, there is no guarantee that the Fund will achieve its investment
objective.

FUND PERFORMANCE

The bar chart and table that follow show how the Fund has performed on a calendar
year basis and provide an indication of the risks of investing in the Fund. The
table also shows how the Fund's performance compares to the MSCI World Index,
which is a free float-adjusted market capitalization weighted index designed to
measure the equity market performance of developed markets. Both the bar chart
and the table assume the reinvestment of all dividends and distributions. Past
performance (before and after taxes) does not necessarily indicate how the Fund
will perform in the future.

Updated performance information is available on the Fund's website at
www.advisorshares.com.

The Fund's name and investment sub-adviser changed effective December 1, 2011.
Prior to December 1, 2011, the Fund was named "Mars Hill Global Relative Value
ETF" and sub-advised by Mars Hill Partners, LLC. While the Fund's investment
objective and principal investment strategies remain substantially the same, the
performance prior to December 1, 2011 may not be indicative of the Fund's
performance under the new Sub-Advisor.

The Fund's year-to-date total return as of September 30, 2012 was 4.77%.

Best and Worst Quarter Returns (for the period reflected in the bar chart above)
                   
                   Return      Quarter/Year
Highest Return     1.94%         4Q/2011
Lowest Return    -11.61%         1Q/2011

AVERAGE ANNUAL TOTAL RETURNS FOR THE PERIODS ENDING DECEMBER 31, 2011

Average Annual Total Returns	Label		1 Year	Since Inception	Inception Date
Accuvest Global Long Short ETF	Return Before Taxes Based on NAV		(17.89%)	(11.48%)	Jul. 08, 2010
Accuvest Global Long Short ETF After Taxes on Distributions	Return After Taxes on Distributions	[1]	(18.25%)	(11.75%)	Jul. 08, 2010
Accuvest Global Long Short ETF After Taxes on Distributions and Sales	Return After Taxes on Distributions and Sale of Fund Shares	[1]	(11.57%)	(9.85%)	Jul. 08, 2010
Accuvest Global Long Short ETF MSCI World Index	MSCI World Index (Reflects no deduction for fees, expenses, or taxes)		(5.54%)	8.17%	Jul. 08, 2010

[1] As a shareholder in certain Underlying ETFs (the "Acquired Funds"), the Fund will indirectly bear its proportionate share of the fees and expenses of the Acquired Funds. "Acquired Fund Fees and Expenses" do not reflect the operating expenses of exchange-traded products in which the Fund invests that are not investment companies, including exchange-traded notes and exchange-traded pooled investment vehicles not registered pursuant to the Investment Company Act of 1940, as amended (the "1940 Act").

[2] The Total Annual Fund Operating Expenses and Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement in this fee table may not correlate to the expense ratios in the Fund's financial highlights (and the Fund's financial statements) because the financial highlights include only the Fund's direct operating expenses and do not include Acquired Fund Fees and Expenses.

[3] AdvisorShares Investments, LLC (the "Advisor") has contractually agreed to reduce its fees and/or reimburse expenses in order to keep net expenses (excluding interest expense, taxes, brokerage commissions, Acquired Fund Fees and Expenses, and extraordinary expenses) from exceeding 1.50% of the Fund's average daily net assets for a year from the date of this Prospectus and for an indefinite period thereafter subject to annual approval by the AdvisorShares Trust Board of Trustees (the "Board"). The expense limitation agreement (i) may be terminated at any time by the Board and (ii) will be terminated upon termination of the investment advisory agreement between the Advisor and the Fund.

[1] After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on your tax situation and may differ from those shown and are not relevant if you hold your shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. In some cases the return after taxes may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period.

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Madrona International ETF (Prospectus Summary) | Madrona International ETF

MADRONA INTERNATIONAL ETF

INVESTMENT OBJECTIVE

The Madrona International ETF (the "Fund") seeks to provide long-term capital
appreciation above the capital appreciation of its international benchmarks,
such as the MSCI EAFE Index, the Fund's primary benchmark, and the BNY Mellon
Classic ADR Index, the Fund's secondary benchmark.

FUND FEES AND EXPENSES

This table describes the fees and expenses that you may pay if you buy and hold
shares of the Fund. Most investors will incur customary brokerage commissions
when buying or selling shares of the Fund which are not reflected in the table
below.

SHAREHOLDER FEES (fees paid directly from your investment) None

ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses		Madrona International ETF
MANAGEMENT FEES		0.80%
DISTRIBUTION (12b-1) FEES		none
OTHER EXPENSES		0.74%
TOTAL ANNUAL FUND OPERATING EXPENSES		1.54%
FEE WAIVER AND/OR EXPENSE REIMBURSEMENT	[1]	0.29%
TOTAL ANNUAL FUND OPERATING EXPENSES AFTER FEE WAIVER AND/OR EXPENSE REIMBURSEMENT		1.25%

EXAMPLE

This Example is intended to help you compare the cost of investing in the shares
of the Fund with the cost of investing in other funds. This example does not
take into account creation or redemption transaction fees, or the brokerage
commissions that you pay when purchasing or selling shares of the Fund. If the
commissions were included, your costs would be higher.
  
The Example assumes that you invest $10,000 in the Fund for the time periods
indicated and then sell all of your shares at the end of those periods. The
Example also assumes that your investment has a 5% return each year and that the
Fund's operating expenses remain the same. Although your actual costs may be
higher or lower, based on these assumptions your costs would be:

Expense Example (USD $)	Expense Example, with Redemption, 1 Year	Expense Example, with Redemption, 3 Years	Expense Example, with Redemption, 5 Years	Expense Example, with Redemption, 10 Years
Madrona International ETF	128	459	813	1,812

PORTFOLIO TURNOVER

The Fund pays transaction costs, such as commissions, when it buys and sells
securities (or "turns over" its portfolio). A higher portfolio turnover may
indicate higher transaction costs and may result in higher taxes when Fund
shares are held in a taxable account. These costs, which are not reflected
in annual fund operating expenses or in the example, affect Fund performance.
This rate excludes the value of portfolio securities received or delivered as
a result of in-kind creations or redemptions of the Fund's shares. During the
most recent fiscal year, the Fund's portfolio turnover rate was 110% of the
average value of its portfolio.

PRINCIPAL INVESTMENT STRATEGIES

Madrona Funds, LLC (the "Sub-Advisor") seeks to achieve the Fund's investment
objective by selecting a portfolio primarily composed of American Depository
Receipts ("ADRs") from among the largest issuers of Europe, Australasia and the
Far East ("EAFE") and Canada. The Fund's portfolio may also include U.S.-traded
securities of large-capitalization non-U.S. issuers that provide exposure to
certain markets deemed to be emerging markets. Securities are selected, weighted
and sold based upon the Sub-Advisor's proprietary investment process. The
Sub-Advisor's investment committee meets on a bi-weekly basis to monitor the
portfolio and make allocation decisions. The investment committee uses third-party
analyst research and a proprietary fundamental process to make allocation decisions.

PRINCIPAL RISKS OF INVESTING IN THE FUND

The Fund is subject to a number of risks that may affect the value of its
shares, including:

American Depositary Receipt (ADR) Risk. ADRs have the same currency and economic
risks as the underlying non-U.S. shares they represent. They are affected by the
risks associated with non-U.S. securities, such as changes in political or
economic conditions of other countries and changes in the exchange rates of
foreign currencies. In addition, investments in ADRs may be less liquid than the
underlying securities in their primary trading market.

Currency Risk. As a result of the Fund's investments in securities receiving
revenues in, foreign currencies, the Fund will be subject to currency risk. This
is the risk that currencies to which the Fund is exposed will decline in value
relative to the U.S. dollar, which may cause the dollar value of an investment
in the Fund to be adversely affected.

Early Closing Risk. An unanticipated early closing of the NYSE Arca, Inc. (the
"Exchange") may result in a shareholder's inability to buy or sell shares of the
Fund on that day.

Emerging Markets Risk. Certain of the Fund's investments will expose the Fund's
portfolio to the risks of investing in emerging markets. Emerging markets, which
consist of countries or markets with low to middle income economies as classified
by the World Bank and other countries or markets with similar characteristics as
determined by the Advisor, can be subject to greater social, economic, regulatory,
and political uncertainties and can be extremely volatile.

Equity Risk. The prices of equity securities rise and fall daily. These price
movements may result from factors affecting individual issuers, industries or
the stock market as a whole. In addition, equity markets tend to move in cycles
which may cause stock prices to fall over short or extended periods of time.

Foreign Investment Risk. The Fund's investments in securities of foreign issuers,
including ADRs, may involve certain risks that are greater than those associated
with investments in securities of U.S. issuers. These include risks of adverse
changes in foreign economic, political, regulatory and other conditions; changes
in currency exchange rates or exchange control regulations (including limitations
on currency movements and exchanges); differing accounting, auditing, financial
reporting and legal standards and practices; differing securities market
structures; and higher transaction costs.

Geographic Concentration Risk. To the extent that the Fund's investments are
concentrated in a particular country or region, the Fund will be susceptible to
loss due to adverse market, political, regulatory, and geographic events affecting
that country or region. The Fund has concentrated investment exposure to the
countries and regions listed below.

    Asia. While certain Asian economies are exemplars of growth and development
    others have been and continue to be subject, to some extent, to over-extension
    of credit, currency devaluations and restrictions, high unemployment, high
    inflation, decreased exports and economic recessions.

    Canada. The Canadian economy is susceptible to adverse changes in certain
    commodities markets, including those related to the agricultural and mining
    industries. It is also heavily dependent on trading with key partners. Any
    reduction in this trading may adversely affect the Canadian economy.
  
    Europe. The European economy is diverse and includes both large, competitive
    economies and small, struggling economies. The European economy is vulnerable to
    decreasing imports or exports, changes in governmental regulations on trade,
    changes in the exchange rate of the euro and recessions in EU economies.

    United States. The United States is a significant trading partner of many
    emerging markets in which the Fund invests. The United States economy has
    traditionally been considered to be one of the most stable and productive
    economies in the world. However, the recent financial crisis, declining U.S.
    imports, new trade regulations, changes in exchange rates, and increasing public
    debt pose concerns for many of the United States' trading partners that depend
    on its historically high levels of consumer spending and foreign investment.

Large-Cap Risk. Large-cap stocks tend to go in and out of favor based on market
and economic conditions. During a period when the demand for large-cap stocks is
less than for other types of investments -- small-cap stocks, for instance -- the
Fund's performance could be reduced.

Liquidity Risk. Trading in shares of the Fund may be halted because of market
conditions or for reasons that, in the view of the Exchange, make trading in
shares inadvisable.

Market Risk. Due to market conditions, the Fund's investments may fluctuate
significantly from day to day. This volatility may cause the value of your
investment in the Fund to decrease.

Trading Risk. Shares of the Fund may trade below their NAV. The NAV of shares
will fluctuate with changes in the market value of the Fund's holdings. The
trading prices of shares will fluctuate in accordance with changes in NAV as
well as market supply and demand.

As with any fund, there is no guarantee that the Fund will achieve its
investment objective.

FUND PERFORMANCE

A comparison of the Fund's performance with that of a broad measure of market
performance may give some indication of the risks of an investment in the Fund;
however, the Fund is new and, therefore, does not have a performance history for
a full calendar year. Of course, once the Fund has performance, this past
performance (before and after taxes) does not necessarily indicate how the Fund
will perform in the future.

Updated performance information is available on the Fund's website at
www.advisorshares.com.

[1] AdvisorShares Investments, LLC ("the Advisor") has contractually agreed to reduce its fees and/or reimburse expenses to keep the Fund's Total Annual Fund Operating Expenses (excluding interest, taxes, brokerage commissions, Acquired Fund Fees and Expenses, and extraordinary expenses) from exceeding 1.25% of the Fund's average daily net assets for a year from the date of this Prospectus and for an indefinite period thereafter subject to annual approval by the Board . The expense limitation agreement (i) may be terminated at any time by the Board, and (ii) will be terminated upon termination of the investment advisory agreement between the Advisor and the Fund.

XML

Label	Element	Value
Risk Return [Abstract]	rr_RiskReturnAbstract
ProspectusDate	rr_ProspectusDate	Oct. 29, 2012
Accuvest Global Long Short ETF (Prospectus Summary) | Accuvest Global Long Short ETF
Risk Return [Abstract]	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	ACCUVEST GLOBAL LONG SHORT ETF
Objective [Heading]	rr_ObjectiveHeading	INVESTMENT OBJECTIVE
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The Accuvest Global Long Short ETF (the "Fund") seeks to provide average annual returns in excess of the total return of the MSCI World Index (the "Index").
Expense [Heading]	rr_ExpenseHeading	FUND FEES AND EXPENSES
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. Most investors will incur customary brokerage commissions when buying or selling shares of the Fund, which are not reflected in the table below.
Shareholder Fees Caption [Text]	rr_ShareholderFeesCaption	SHAREHOLDER FEES (fees paid directly from your investment) None
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	PORTFOLIO TURNOVER
Portfolio Turnover [Text Block]	rr_PortfolioTurnoverTextBlock	The Fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in Total 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 in-kind creations or redemptions of the Fund's shares. During the most recent fiscal year, the Fund's portfolio turnover rate was 365% of the average value of its portfolio.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	365.00%
Expense Exchange Traded Fund Commissions [Text]	rr_ExpenseExchangeTradedFundCommissions	Most investors will incur customary brokerage commissions when buying or selling shares of the Fund, which are not reflected in the table below.
Expenses Not Correlated to Ratio Due to Acquired Fund Fees [Text]	rr_ExpensesNotCorrelatedToRatioDueToAcquiredFundFees	The Total Annual Fund Operating Expenses and Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement in this fee table may not correlate to the expense ratios in the Fund's financial highlights (and the Fund's financial statements) because the financial highlights include only the Fund's direct operating expenses and do not include Acquired Fund Fees and Expenses.
Expense Example [Heading]	rr_ExpenseExampleHeading	EXAMPLE
Expense Example Narrative [Text Block]	rr_ExpenseExampleNarrativeTextBlock	This Example is intended to help you compare the cost of investing in the shares of the Fund with the cost of investing in other funds. This Example does not take into account creation or redemption transaction fees, or the brokerage commissions that you pay when purchasing or selling shares of the Fund. If commissions were included, your costs would be higher.    The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then sell all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. 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 in both long and short positions in other exchange traded funds (the "Underlying ETFs") that offer diversified exposure to global regions, countries, styles (market capitalization, value, growth, etc.) or sectors, and other exchange-traded products ("ETPs"), including, but not limited to, exchange-traded notes ("ETNs") and exchange-traded currency trusts. Accuvest Global Advisors (the "Sub-Advisor") seeks to achieve the Fund's investment objective by taking long positions in the Underlying ETFs that invest in what it believes to be the most relatively attractive global regions and countries within those regions and by taking short positions, by entering into short sales, in the Underlying ETFs that invest in what it believes to be the most relatively unattractive global regions and countries within those regions. In establishing such positions, the Fund seeks to profit from the relative performance between the long and short positions in global regions, countries, styles or sectors. From time to time, the Fund may have directional exposure to seek to profit by being net long when stock markets are rising and net short when markets are falling.
Risk [Heading]	rr_RiskHeading	PRINCIPAL RISKS OF INVESTING IN THE FUND
Risk Narrative [Text Block]	rr_RiskNarrativeTextBlock	The Fund is subject to a number of risks that may affect the value of its shares, including: Allocation Risk. The Fund's particular allocations may have a significant effect on the Fund's performance. Allocation risk is the risk that the selection of Underlying ETFs and ETPs and the allocation of assets among such Underlying ETFs and ETPs will cause the Fund to underperform other funds with a similar investment objective that do not allocate their assets in the same manner or the market as a whole. Early Closing Risk. An unanticipated early closing of the NYSE Arca, Inc. (the "Exchange") may result in a shareholder's inability to buy or sell shares of the Fund on that day. ETN Risk. ETNs are senior, unsecured unsubordinated debt securities issued by an underwriting bank that are designed to provide returns that are linked to a particular benchmark less investor fees. ETNs have a maturity date and generally, are backed only by the creditworthiness of the issuer. As a result, the value of an ETN may be influenced by time to maturity, level of supply and demand for the ETN, volatility and lack of liquidity in the underlying market (e.g., the commodities market), changes in the applicable interest rates, and changes in the issuer's credit rating and economic, legal, political or geographic events that affect the referenced market. ETNs also may be subject to commodities market risk and credit risk. Liquidity Risk. Trading in shares of the Fund may be halted because of market conditions or for reasons that, in the view of the Exchange, make trading in shares inadvisable. In addition, trading in listed securities is subject to trading halts caused by extraordinary market volatility pursuant to "circuit breaker" rules. The Fund's investments in ETNs and certain other ETPs may be subject to restrictions on the amount and timing of any redemptions, which may adversely affect the value of the Fund's portfolio holdings.    Portfolio Turnover Risk. The Fund's investment strategy may result in relatively high portfolio turnover, which may result in increased transaction costs and may lower Fund performance. Short Sales Risk. Short sales are transactions in which the Fund sells a security it does not own. To complete the transaction, the Fund must borrow the security to make delivery to the buyer. The Fund is then obligated to replace the security borrowed by purchasing the security at the market price at the time of replacement. The price at such time may be higher or lower than the price at which the security was sold by the Fund. If the underlying security goes down in price between the time the Fund sells the security and buys it back, the Fund will realize a gain on the transaction. Conversely, if the underlying security goes up in price during the period, the Fund will realize a loss on the transaction. Any such loss is increased by the amount of premium or interest the Fund must pay to the lender of the security. Likewise, any gain will be decreased by the amount of premium or interest the Fund must pay to the lender of the security. Because a short position loses value as the security's price increases, the loss on a short sale is theoretically unlimited. Short sales involve leverage because the Fund borrows securities and then sells them, effectively leveraging its assets. The use of leverage may magnify gains or losses for the Fund. Tax Risk. In order to qualify for the favorable U.S. federal income tax treatment accorded to "regulated investment companies," the Fund must derive at least 90% of its gross income in each taxable year from certain categories of income ("qualifying income"). Certain of the Fund's investments may generate income that is not qualifying income. If the Fund were to fail to meet the qualifying income test and fail to qualify as a regulated investment company, it would be taxed in the same manner as an ordinary corporation, and distributions to its shareholders would not be deductible by the Fund in computing its taxable income. Trading Risk. Shares of the Fund may trade below their net asset value ("NAV"). The NAV of shares will fluctuate with changes in the market value of the Fund's holdings. In addition, although the Fund's shares are currently listed on the Exchange, there can be no assurance that an active trading market for shares will develop or be maintained. Underlying ETF and ETP Investment Risk. Through its investments in the Underlying ETFs and ETPs, the Fund will be subject to the risks associated with such investment vehicles' investments, or reference assets in the case of ETNs, including the possibility that the value of the securities or instruments held or tracked by an Underlying ETF or ETP could decrease. These risks include any combination of the risks described below. The Fund's exposure to a particular risk will be proportionate to the Fund's overall allocation to the Underlying ETFs or ETPs and their exposure to various security types, currencies, market sectors and geographic regions.   Commodity Risk. Because certain of the Underlying ETFs and ETPs may have a   significant portion of their assets exposed directly or indirectly to   commodities or commodity-linked securities, developments affecting commodities   may have a disproportionate impact on such Underlying ETF and ETPs. An Underlying   ETF's or ETP's investment in commodities or commodity-linked derivative   instruments may subject the Underlying ETF or ETP (and indirectly the Fund) to   greater volatility than investments in traditional securities, particularly if   the instruments involve leverage. The value of commodities and commodity-linked   derivative instruments may be affected by changes in overall market movements,   commodity index volatility, changes in interest rates, or factors affecting a   particular industry or commodity, such as drought, floods, weather, livestock   disease, embargoes, tariffs and international economic, political and regulatory   developments.   Credit Risk. Certain of the Underlying ETFs and ETPs are subject to the risk   that a decline in the credit quality of a portfolio investment or a counterparty   to a portfolio investment could cause the Underlying ETF's or ETP's share price   to fall. The Underlying ETFs and ETPs could lose money if the issuer or guarantor   of a portfolio investment or the counterparty to a derivatives contract fails to      make timely principal or interest payments or otherwise honor its obligations.      Emerging Markets Risk. There is an increased risk of price volatility   associated with an Underlying ETF's or ETP's investments in, or an ETN's   exposure to, emerging market countries, which may be magnified by currency   fluctuations relative to the U.S. dollar.   Equity Risk. The prices of equity securities in which an Underlying ETF invests,   or an ETP is exposed to, rise and fall daily. These price movements may result   from factors affecting individual companies, industries or the securities market   as a whole.   Fixed Income Risk. An Underlying ETF's investments in, or an ETP's exposure to,   fixed income securities are subject to the risk that the securities may be paid   off earlier or later than expected. Either situation could cause the Underlying   ETF or ETP to hold securities paying lower-than-market rates of interest, which   could hurt the Fund's yield or share price.   Foreign Currency Risk. Currency movements may negatively impact the value of an   Underlying ETF or ETP portfolio security even when there is no change in the   value of the security in the issuer's home country. Certain of the Underlying   ETFs and ETPs may not hedge against the risk of currency exchange rate   fluctuations, while other Underlying ETFs or ETPs may if there is volatility in   currency exchange rates.   Foreign Securities Risk. An Underlying ETF's investments in, or an ETP's   exposure to, foreign issuers involve certain risks including, but not limited   to, risks of adverse changes in foreign economic, political, regulatory and   other conditions, or changes in currency exchange rates or exchange control   regulations (including limitations on currency movements and exchanges). In   certain countries, legal remedies available to investors may be more limited   than those available with respect to investments in the United States. In   addition, the securities of some foreign companies may be less liquid and, at   times, more volatile than securities of comparable U.S. companies.   Investment Risk. The Fund may experience losses with respect to its investment   in an Underlying ETF or ETP. Further, there is no guarantee that an ETP will     achieve its objective.   Interest Rate Risk. An Underlying ETF's investments in, or an ETP's exposure to,   fixed income securities are subject to the risk that interest rates rise and   fall over time. As with any investment whose yield reflects current interest   rates, an Underlying ETF's or ETP's yield will change over time. During periods   when interest rates are low, an Underlying ETF's or ETP's yield (and total   return) also may be low. To the extent that the investment adviser (or     sub-adviser) of an Underlying ETF or issuer of an ETP anticipates interest rate   trends imprecisely, the Underlying ETF or ETP could miss yield opportunities or   its share price could fall.   Large-Capitalization Risk. An Underlying ETF may invest in large-capitalization     companies. Returns on investments in stocks of large U.S. companies could trail   the returns on investments in stocks of small- and mid-capitalization companies     or the market as a whole.   Mid-Capitalization Risk. An Underlying ETF may invest in mid-capitalization   companies. Mid-cap companies may be more volatile and more likely than large-cap   companies to have limited product lines, markets or financial resources, or   depend on a few key employees. Returns on investments in stocks of mid-cap   companies could trail the returns on investments in stocks of large- or   small-cap companies or the market as a whole.   Real Estate Investment Trusts (REITs) Risk. Certain of the Underlying ETFs   invest in REITs. An Underlying ETF's investments in REITs will be subject to the   risks associated with the direct ownership of real estate. 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. REITs   are more dependent upon specialized management skills, have limited diversification      and are, therefore, generally dependent on their ability to generate cash flow to   make distributions to shareholders. In addition, REITs have their own expenses,   and the Underlying Fund will bear a proportionate share of those expenses.   Small-Capitalization Risk. An Underlying ETF may invest in small-capitalization   companies. Small-cap companies may be more vulnerable than larger, more established   organizations to adverse business or economic developments. In particular, small-cap   companies may have limited product lines, markets, and financial resources and may   be dependent upon a relatively small management group. These securities may be   listed on an exchange or trade over-the-counter, and may or may not pay dividends.   During a period when the performance of small-cap stocks falls behind that of other   types of investments, such as large-cap stocks, the Underlying ETF's performance     could be adversely affected. As with any fund, there is no guarantee that the Fund will achieve its investment objective.
Risk Lose Money [Text]	rr_RiskLoseMoney	As with any fund, there is no guarantee that the Fund will achieve its investment objective.
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	FUND PERFORMANCE
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	The bar chart and table that follow show how the Fund has performed on a calendar year basis and provide an indication of the risks of investing in the Fund. The table also shows how the Fund's performance compares to the MSCI World Index, which is a free float-adjusted market capitalization weighted index designed to measure the equity market performance of developed markets. Both the bar chart and the table assume the reinvestment of all dividends and distributions. Past performance (before and after taxes) does not necessarily indicate how the Fund will perform in the future. Updated performance information is available on the Fund's website at www.advisorshares.com. The Fund's name and investment sub-adviser changed effective December 1, 2011. Prior to December 1, 2011, the Fund was named "Mars Hill Global Relative Value ETF" and sub-advised by Mars Hill Partners, LLC. While the Fund's investment objective and principal investment strategies remain substantially the same, the performance prior to December 1, 2011 may not be indicative of the Fund's performance under the new Sub-Advisor.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	The bar chart and table that follow show how the Fund has performed on a calendar year basis and provide an indication of the risks of investing in the Fund.
Performance Availability Website Address [Text]	rr_PerformanceAvailabilityWebSiteAddress	www.advisorshares.com
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	Past performance (before and after taxes) does not necessarily indicate how the Fund will perform in the future.
Bar Chart Closing [Text Block]	rr_BarChartClosingTextBlock	The Fund's year-to-date total return as of September 30, 2012 was 4.77%. Best and Worst Quarter Returns (for the period reflected in the bar chart above)                                        Return      Quarter/Year Highest Return     1.94%         4Q/2011 Lowest Return    -11.61%         1Q/2011
Index No Deduction for Fees, Expenses, Taxes [Text]	rr_IndexNoDeductionForFeesExpensesTaxes	Reflects no deduction for fees, expenses, or taxes
Performance Table Uses Highest Federal Rate	rr_PerformanceTableUsesHighestFederalRate	After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred	rr_PerformanceTableNotRelevantToTaxDeferred	Actual after-tax returns depend on your tax situation and may differ from those shown and are not relevant if you hold your shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table Explanation after Tax Higher	rr_PerformanceTableExplanationAfterTaxHigher	In some cases the return after taxes may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period.
Caption	rr_AverageAnnualReturnCaption	AVERAGE ANNUAL TOTAL RETURNS FOR THE PERIODS ENDING DECEMBER 31, 2011
Accuvest Global Long Short ETF (Prospectus Summary) | Accuvest Global Long Short ETF | MSCI World Index
Risk Return [Abstract]	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	MSCI World Index (Reflects no deduction for fees, expenses, or taxes)
1 Year	rr_AverageAnnualReturnYear01	(5.54%)
Since Inception	rr_AverageAnnualReturnSinceInception	8.17%
Inception Date	rr_AverageAnnualReturnInceptionDate	Jul. 08, 2010
Accuvest Global Long Short ETF (Prospectus Summary) | Accuvest Global Long Short ETF | Accuvest Global Long Short ETF
Risk Return [Abstract]	rr_RiskReturnAbstract
MANAGEMENT FEES	rr_ManagementFeesOverAssets	1.35%
DISTRIBUTION (12b-1) FEES	rr_DistributionAndService12b1FeesOverAssets	none
Short Interest Expense	rr_Component1OtherExpensesOverAssets	4.27%
Other Expenses	rr_Component2OtherExpensesOverAssets	2.53%
TOTAL OTHER EXPENSES	rr_OtherExpensesOverAssets	6.80%
ACQUIRED FUND FEES AND EXPENSES	rr_AcquiredFundFeesAndExpensesOverAssets	0.09%	[1]
TOTAL ANNUAL FUND OPERATING EXPENSES	rr_ExpensesOverAssets	8.24%	[2]
FEE WAIVER AND/OR EXPENSE REIMBURSEMENT	rr_FeeWaiverOrReimbursementOverAssets	(2.38%)	[3]
TOTAL ANNUAL FUND OPERATING EXPENSES AFTER FEE WAIVER AND/OR EXPENSE REIMBURSEMENT	rr_NetExpensesOverAssets	5.86%	[2]
Fee Waiver or Reimbursement over Assets, Date of Termination	rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination	a year from the date of this Prospectus and for an indefinite period thereafter subject to annual approval by the AdvisorShares Trust Board of Trustees (the "Board").
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	583
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	2,165
Expense Example, with Redemption, 5 Years	rr_ExpenseExampleYear05	3,645
Expense Example, with Redemption, 10 Years	rr_ExpenseExampleYear10	6,946
Annual Return 2011	rr_AnnualReturn2011	(17.89%)
Year to Date Return, Label	rr_YearToDateReturnLabel	year-to-date total return
Bar Chart, Year to Date Return, Date	rr_BarChartYearToDateReturnDate	Sep. 30, 2012
Bar Chart, Year to Date Return	rr_BarChartYearToDateReturn	4.77%
Highest Quarterly Return, Label	rr_HighestQuarterlyReturnLabel	Highest Return
Highest Quarterly Return, Date	rr_BarChartHighestQuarterlyReturnDate	Dec. 31, 2011
Highest Quarterly Return	rr_BarChartHighestQuarterlyReturn	1.94%
Lowest Quarterly Return, Label	rr_LowestQuarterlyReturnLabel	Lowest Return
Lowest Quarterly Return, Date	rr_BarChartLowestQuarterlyReturnDate	Mar. 31, 2011
Lowest Quarterly Return	rr_BarChartLowestQuarterlyReturn	(11.61%)
Label	rr_AverageAnnualReturnLabel	Return Before Taxes Based on NAV
1 Year	rr_AverageAnnualReturnYear01	(17.89%)
Since Inception	rr_AverageAnnualReturnSinceInception	(11.48%)
Inception Date	rr_AverageAnnualReturnInceptionDate	Jul. 08, 2010
Accuvest Global Long Short ETF (Prospectus Summary) | Accuvest Global Long Short ETF | Accuvest Global Long Short ETF | After Taxes on Distributions
Risk Return [Abstract]	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	Return After Taxes on Distributions	[4]
1 Year	rr_AverageAnnualReturnYear01	(18.25%)
Since Inception	rr_AverageAnnualReturnSinceInception	(11.75%)
Inception Date	rr_AverageAnnualReturnInceptionDate	Jul. 08, 2010
Accuvest Global Long Short ETF (Prospectus Summary) | Accuvest Global Long Short ETF | Accuvest Global Long Short ETF | After Taxes on Distributions and Sales
Risk Return [Abstract]	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	Return After Taxes on Distributions and Sale of Fund Shares	[4]
1 Year	rr_AverageAnnualReturnYear01	(11.57%)
Since Inception	rr_AverageAnnualReturnSinceInception	(9.85%)
Inception Date	rr_AverageAnnualReturnInceptionDate	Jul. 08, 2010

[1] As a shareholder in certain Underlying ETFs (the "Acquired Funds"), the Fund will indirectly bear its proportionate share of the fees and expenses of the Acquired Funds. "Acquired Fund Fees and Expenses" do not reflect the operating expenses of exchange-traded products in which the Fund invests that are not investment companies, including exchange-traded notes and exchange-traded pooled investment vehicles not registered pursuant to the Investment Company Act of 1940, as amended (the "1940 Act").

[2] The Total Annual Fund Operating Expenses and Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement in this fee table may not correlate to the expense ratios in the Fund's financial highlights (and the Fund's financial statements) because the financial highlights include only the Fund's direct operating expenses and do not include Acquired Fund Fees and Expenses.

[3] AdvisorShares Investments, LLC (the "Advisor") has contractually agreed to reduce its fees and/or reimburse expenses in order to keep net expenses (excluding interest expense, taxes, brokerage commissions, Acquired Fund Fees and Expenses, and extraordinary expenses) from exceeding 1.50% of the Fund's average daily net assets for a year from the date of this Prospectus and for an indefinite period thereafter subject to annual approval by the AdvisorShares Trust Board of Trustees (the "Board"). The expense limitation agreement (i) may be terminated at any time by the Board and (ii) will be terminated upon termination of the investment advisory agreement between the Advisor and the Fund.

[4] After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on your tax situation and may differ from those shown and are not relevant if you hold your shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. In some cases the return after taxes may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period.

XML

Label	Element	Value
Risk Return [Abstract]	rr_RiskReturnAbstract
ProspectusDate	rr_ProspectusDate	Oct. 29, 2012
Cambria Global Tactical ETF (Prospectus Summary) | Cambria Global Tactical ETF
Risk Return [Abstract]	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	CAMBRIA GLOBAL TACTICAL ETF
Objective [Heading]	rr_ObjectiveHeading	INVESTMENT OBJECTIVE
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The Cambria Global Tactical ETF (the "Fund") seeks to preserve and grow capital from investments in the U.S. and foreign equity, fixed income, commodity and currency markets, independent of market direction.
Expense [Heading]	rr_ExpenseHeading	FUND FEES AND EXPENSES
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. Most investors will incur customary brokerage commissions when buying or selling shares of the Fund, which are not reflected in the table below.
Shareholder Fees Caption [Text]	rr_ShareholderFeesCaption	SHAREHOLDER FEES (fees paid directly from your investment) None
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	PORTFOLIO TURNOVER
Portfolio Turnover [Text Block]	rr_PortfolioTurnoverTextBlock	The Fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in Total 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 in-kind creations or redemptions of the Fund's shares. During the most recent fiscal period, the Fund's portfolio turnover rate was 475% of the average value of its portfolio.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	475.00%
Expense Exchange Traded Fund Commissions [Text]	rr_ExpenseExchangeTradedFundCommissions	Most investors will incur customary brokerage commissions when buying or selling shares of the Fund, which are not reflected in the table below.
Expenses Not Correlated to Ratio Due to Acquired Fund Fees [Text]	rr_ExpensesNotCorrelatedToRatioDueToAcquiredFundFees	The Total Annual Fund Operating Expenses and Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement in this fee table may not correlate to the expense ratios in the Fund's financial highlights (and the Fund's financial statements) because the financial highlights include only the Fund's direct operating expenses and do not include Acquired Fund Fees and Expenses.
Expense Example [Heading]	rr_ExpenseExampleHeading	EXAMPLE
Expense Example Narrative [Text Block]	rr_ExpenseExampleNarrativeTextBlock	This Example is intended to help you compare the cost of investing in the shares of the Fund with the cost of investing in other funds. This Example does not take into account creation or redemption transaction fees, or the brokerage commissions that you pay when purchasing or selling shares of the Fund. If the commissions were included, your costs would be higher.    The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then sell all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. 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 in other exchange-traded funds (the "Underlying ETFs") that offer diversified exposure, including inverse exposure, to global regions, countries, styles (market capitalization, value, growth, etc.) or sectors, and other exchange traded products ("ETPs") including, but not limited to, exchange-traded notes ("ETNs"), exchange-traded currency trusts, and closed-end funds. The Fund seeks to preserve and grow capital by producing absolute returns with reduced volatility and manageable risk and drawdowns. The Fund's investment strategies are inherently designed as risk-management and capital preservation approaches. The Fund will invest in Underlying ETFs and ETPs spanning all the major world asset classes including equities, bonds, real estate, commodities, and currencies. Cambria Investment Management, L.P. (the "Sub-Advisor") will utilize a quantitative approach with strict risk management controls to actively manage the Fund's portfolio in an attempt to control downside losses and protect capital. The wide diversification coupled with prudent portfolio management should allow for the Fund to perform in any economic environment.
Risk [Heading]	rr_RiskHeading	PRINCIPAL RISKS OF INVESTING IN THE FUND
Risk Narrative [Text Block]	rr_RiskNarrativeTextBlock	The Fund is subject to a number of risks that may affect the value of its shares, including: Allocation Risk. The Fund's particular allocations may have a significant effect on the Fund's performance. Allocation risk is the risk that the selection of Underlying ETFs and ETPs and the allocation of assets among such Underlying ETFs and ETPs will cause the Fund to underperform other funds with a similar investment objective that do not allocate their assets in the same manner or the market as a whole. Closed-End Fund Risk. Secondary market trading prices of closed-end funds should be expected to fluctuate and such prices may be higher or lower than the net asset value ("NAV") of a closed-end fund's portfolio holdings. There can be no guarantee that shares of a closed-end held by the Fund will not trade at a persistent and ongoing discount. Nor can there be any guarantee that an active market in shares of closed- end funds held by the Fund will exist. The Fund may not be able to sell closed-end fund shares at a price equal to the NAV of the closed-end fund.    Early Closing Risk. An unanticipated early closing of NYSE Arca, Inc. (the "Exchange") may result in a shareholder's inability to buy or sell shares of the Fund on that day. ETN Risk. ETNs are senior, unsecured unsubordinated debt securities issued by an underwriting bank that are designed to provide returns that are linked to a particular benchmark less investor fees. ETNs have a maturity date and generally, are backed only by the creditworthiness of the issuer. As a result, the value of an ETN may be influenced by time to maturity, level of supply and demand for the ETN, volatility and lack of liquidity in the underlying market (e.g., the commodities market), changes in the applicable interest rates, and changes in the issuer's credit rating and economic, legal, political or geographic events that affect the referenced market. ETNs also may be subject to commodities market risk and credit risk. Equity Risk. The prices of equity securities rise and fall daily. These price movements may result from factors affecting individual issuers, industries or the stock market as a whole. In addition, equity markets tend to move in cycles which may cause stock prices to fall over short or extended periods of time. Liquidity Risk. Trading in shares of the Fund may be halted because of market conditions or for reasons that, in the view of the Exchange, make trading in shares inadvisable. In addition, trading in listed securities is subject to trading halts caused by extraordinary market volatility pursuant to "circuit breaker" rules. The Fund's investments in ETNs and certain other ETPs may be subject to restrictions on the amount and timing of any redemptions, which may adversely affect the value of the Fund's portfolio holdings. Market Risk. Due to market conditions, the Fund's investments may fluctuate significantly from day to day. This volatility may cause the value of your investment in the Fund to decrease. Portfolio Turnover Risk. The Fund's investment strategy may result in relatively high portfolio turnover, which may result in increased transaction costs and may lower Fund performance. Tax Risk. In order to qualify for the favorable U.S. federal income tax treatment accorded to "regulated investment companies," the Fund must derive at least 90% of its gross income in each taxable year from certain categories of income ("qualifying income"). Certain of the Fund's investments may generate income that is not qualifying income. If the Fund were to fail to meet the qualifying income test and fail to qualify as a regulated investment company, it would be taxed in the same manner as an ordinary corporation, and distributions to its shareholders would not be deductible by the Fund in computing its taxable income. Trading Risk. Shares of the Fund may trade below their NAV. The NAV of shares will fluctuate with changes in the market value of the Fund's holdings. In addition, although the Fund's shares are currently listed on the Exchange, there can be no assurance that an active trading market for shares will develop or be maintained. Underlying ETF and ETP Investment Risk. Through its investments in the Underlying ETFs and ETPs, the Fund will be subject to the risks associated with such vehicles' investments, or reference assets in the case of ETNs, including the possibility that the value of the securities or instruments held by an Underlying ETF or ETP could decrease. These risks include any combination of the risks described below. The Fund's exposure to a particular risk will be proportionate to the Fund's overall allocation to the Underlying ETFs or ETPs and their exposure to various security types and geographic regions.   Commodity Risk. Because certain of the Underlying ETFs and ETPs may have a         significant portion of their assets exposed directly or indirectly to commodities   or commodity-linked securities, developments affecting commodities may have a   disproportionate impact on such Underlying ETF and ETPs. An ETF's or ETP's   investment in commodities or commodity-linked derivative instruments may subject   the ETF or ETP (and indirectly the Fund) to greater volatility than investments   in traditional securities, particularly if the instruments involve leverage. The   value of commodities and commodity- linked derivative instruments may be affected   by changes in overall market movements, commodity index volatility, changes in   interest rates, or factors affecting a particular industry or commodity, such as   drought, floods, weather, livestock disease, embargoes, tariffs and international   economic, political and regulatory developments.                                                            Credit Risk. Certain of the Underlying ETFs and ETPs are subject to the risk       that a decline in the credit quality of a portfolio investment or a counterparty   to a portfolio investment could cause the Underlying ETF's or ETP's share price   to fall. The Underlying ETFs and ETPs could lose money if the issuer or guarantor   of a portfolio investment or the counterparty to a derivatives contract fails to   make timely principal or interest payments or otherwise honor its obligations.                                                                   Emerging Markets Risk. There is an increased risk of price volatility associated   with an Underlying ETF's or ETP's investments in, or an ETN's exposure to, emerging   market countries, which may be magnified by currency fluctuations relative to the   U.S. dollar.                                                       Fixed Income Risk. An Underlying ETF's investments in fixed income securities      are subject to the risk that the securities may be paid off earlier or later       than expected. Either situation could cause the Underlying ETF to hold             securities paying lower-than-market rates of interest, which could hurt the        Fund's yield or share price.                                                       Foreign Currency Risk. Currency movements may negatively impact the value of an   Underlying ETF or ETP portfolio security even when there is no change in the       value of the security in the issuer's home country. Certain of the Underlying      ETFs and ETPs may not hedge against the risk of currency exchange rate             fluctuations, while other Underlying ETFs or ETPs may if there is volatility in   currency exchange rates.                                                           Foreign Securities Risk. An Underlying ETF's investments in, or ETP's exposure     to, foreign issuers involve certain risks including, but not limited to, risks     of adverse changes in foreign economic, political, regulatory and other conditions,   or changes in currency exchange rates or exchange control regulations (including   limitations on currency movements and exchanges). In certain countries, legal   remedies available to investors may be more limited than those available with   respect to investments in the United States. In addition, the securities of   some foreign companies may be less liquid and, at times, more volatile than   securities of comparable U.S. companies.                 Interest Rate Risk. An Underlying ETF's investments in or ETP's exposure to,       fixed income securities are subject to the risk that interest rates rise and       fall over time. As with any investment whose yield reflects current interest       rates, an Underlying ETF's or ETP's yield will change over time. During periods   when interest rates are low, an Underlying ETF's or ETP's yield (and total         return) also may be low. To the extent that the investment adviser (or   sub-adviser) of an Underlying ETF or issuer of an ETP anticipates interest rate   trends imprecisely, the Underlying ETF or ETP could miss yield opportunities or   its share price could fall.                                                        Real Estate Investment Trusts (REITs) Risk. Certain of the Underlying ETFs        invest in REITs. An Underlying ETF's investments in REITs will be subject to the   risks associated with the direct ownership of real estate. 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. REITs   are more dependent upon specialized management skills, have limited diversification   and are, therefore, generally dependent on their ability to generate cash flow to   make distributions to shareholders. In addition, REITs have their own expenses,   and the Underlying ETF will bear a proportionate share of those expenses.                                                               As with any fund, there is no guarantee that the Fund will achieve its investment objective.
Risk Lose Money [Text]	rr_RiskLoseMoney	As with any fund, there is no guarantee that the Fund will achieve its investment objective.
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	FUND PERFORMANCE
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	The bar chart and table that follow show how the Fund has performed on a calendar year basis and provide an indication of the risks of investing in the Fund. The table also shows how the Fund's performance compares to the S&P 500 Index, which is a broad-based, unmanaged measurement of changes in stock market conditions based on the average of 500 widely held common stocks. Both the bar chart and the table assume the reinvestment of all dividends and distributions. Past performance (before and after taxes) does not necessarily indicate how the Fund will perform in the future. Updated performance information is available on the Fund's website at www.advisorshares.com.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	The bar chart and table that follow show how the Fund has performed on a calendar year basis and provide an indication of the risks of investing in the Fund.
Performance Availability Website Address [Text]	rr_PerformanceAvailabilityWebSiteAddress	www.advisorshares.com
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	Past performance (before and after taxes) does not necessarily indicate how the Fund will perform in the future.
Bar Chart Closing [Text Block]	rr_BarChartClosingTextBlock	The Fund's year-to-date total return as of September 30, 2012 was 4.86%. Best and Worst Quarter Returns (for the period reflected in the bar chart above)                  Return      Quarter/Year Highest Return     2.59%         1Q/2011 Lowest Return     -7.79%         3Q/2011
Index No Deduction for Fees, Expenses, Taxes [Text]	rr_IndexNoDeductionForFeesExpensesTaxes	Reflects no deduction for fees, expenses, or taxes
Performance Table Uses Highest Federal Rate	rr_PerformanceTableUsesHighestFederalRate	After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred	rr_PerformanceTableNotRelevantToTaxDeferred	Actual after-tax returns depend on your tax situation and may differ from those shown and are not relevant if you hold your shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table Explanation after Tax Higher	rr_PerformanceTableExplanationAfterTaxHigher	In some cases the return after taxes may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period.
Caption	rr_AverageAnnualReturnCaption	AVERAGE ANNUAL TOTAL RETURNS FOR THE PERIODS ENDING DECEMBER 31, 2011
Cambria Global Tactical ETF (Prospectus Summary) | Cambria Global Tactical ETF | S&P 500 Index
Risk Return [Abstract]	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	S&P 500 Index (Reflects no deduction for fees, expenses, or taxes)
1 Year	rr_AverageAnnualReturnYear01	2.11%
Since Inception	rr_AverageAnnualReturnSinceInception	7.35%
Inception Date	rr_AverageAnnualReturnInceptionDate	Oct. 25, 2010
Cambria Global Tactical ETF (Prospectus Summary) | Cambria Global Tactical ETF | Cambria Global Tactical ETF
Risk Return [Abstract]	rr_RiskReturnAbstract
MANAGEMENT FEES	rr_ManagementFeesOverAssets	0.90%
DISTRIBUTION (12b-1) FEES	rr_DistributionAndService12b1FeesOverAssets	none
OTHER EXPENSES	rr_OtherExpensesOverAssets	0.18%
ACQUIRED FUND FEES AND EXPENSES	rr_AcquiredFundFeesAndExpensesOverAssets	0.33%	[1]
TOTAL ANNUAL FUND OPERATING EXPENSES	rr_ExpensesOverAssets	1.41%	[2]
FEE WAIVER AND/OR EXPENSE REIMBURSEMENT	rr_FeeWaiverOrReimbursementOverAssets	(0.09%)	[3]
TOTAL ANNUAL FUND OPERATING EXPENSES AFTER FEE WAIVER AND/OR EXPENSE REIMBURSEMENT	rr_NetExpensesOverAssets	1.32%	[2]
Fee Waiver or Reimbursement over Assets, Date of Termination	rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination	a year from the date of this Prospectus and for an indefinite period thereafter subject to annual approval by the AdvisorShares Trust Board of Trustees (the "Board").
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	134
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	436
Expense Example, with Redemption, 5 Years	rr_ExpenseExampleYear05	760
Expense Example, with Redemption, 10 Years	rr_ExpenseExampleYear10	1,678
Annual Return 2011	rr_AnnualReturn2011	(7.34%)
Year to Date Return, Label	rr_YearToDateReturnLabel	year-to-date total return
Bar Chart, Year to Date Return, Date	rr_BarChartYearToDateReturnDate	Sep. 30, 2012
Bar Chart, Year to Date Return	rr_BarChartYearToDateReturn	4.86%
Highest Quarterly Return, Label	rr_HighestQuarterlyReturnLabel	Highest Return
Highest Quarterly Return, Date	rr_BarChartHighestQuarterlyReturnDate	Mar. 31, 2011
Highest Quarterly Return	rr_BarChartHighestQuarterlyReturn	2.59%
Lowest Quarterly Return, Label	rr_LowestQuarterlyReturnLabel	Lowest Return
Lowest Quarterly Return, Date	rr_BarChartLowestQuarterlyReturnDate	Sep. 30, 2011
Lowest Quarterly Return	rr_BarChartLowestQuarterlyReturn	(7.79%)
Label	rr_AverageAnnualReturnLabel	Return Before Taxes Based on NAV
1 Year	rr_AverageAnnualReturnYear01	(7.34%)
Since Inception	rr_AverageAnnualReturnSinceInception	(4.21%)
Inception Date	rr_AverageAnnualReturnInceptionDate	Oct. 25, 2010
Cambria Global Tactical ETF (Prospectus Summary) | Cambria Global Tactical ETF | Cambria Global Tactical ETF | After Taxes on Distributions
Risk Return [Abstract]	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	Return After Taxes on Distributions	[4]
1 Year	rr_AverageAnnualReturnYear01	(7.46%)
Since Inception	rr_AverageAnnualReturnSinceInception	(4.54%)
Inception Date	rr_AverageAnnualReturnInceptionDate	Oct. 25, 2010
Cambria Global Tactical ETF (Prospectus Summary) | Cambria Global Tactical ETF | Cambria Global Tactical ETF | After Taxes on Distributions and Sales
Risk Return [Abstract]	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	Return After Taxes on Distributions and Sale of Fund Shares	[4]
1 Year	rr_AverageAnnualReturnYear01	(4.62%)
Since Inception	rr_AverageAnnualReturnSinceInception	(3.70%)
Inception Date	rr_AverageAnnualReturnInceptionDate	Oct. 25, 2010

[1] As a shareholder in certain Underlying ETFs (the "Acquired Funds"), the Fund will indirectly bear its proportionate share of the fees and expenses of the Acquired Funds. "Acquired Fund Fees and Expenses" do not reflect the operating expenses of exchange-traded products in which the Fund invests that are not investment companies, including exchange-traded notes and exchange-traded pooled investment vehicles not registered pursuant to the Investment Company Act of 1940, as amended (the "1940 Act").

[2] The Total Annual Fund Operating Expenses and Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement in this fee table may not correlate to the expense ratios in the Fund's financial highlights (and the Fund's financial statements) because the financial highlights include only the Fund's direct operating expenses and do not include Acquired Fund Fees and Expenses.

[3] The AdvisorShares Investment, LLC (the "Advisor") has contractually agreed to reduce its fees and/or reimburse expenses in order to keep net expenses (excluding interest, taxes, brokerage commissions, Acquired Fund Fees and Expenses, and extraordinary expenses) from exceeding 1.25% of the Fund's average daily net assets for a year from the date of this Prospectus and for an indefinite period thereafter subject to annual approval by the AdvisorShares Trust Board of Trustees (the "Board"). The expense limitation agreement (i) may be terminated at any time by the Board and (ii) will be terminated upon termination of the investment advisory agreement between the Advisor and the Fund.

[4] After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on your tax situation and may differ from those shown and are not relevant if you hold your shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. In some cases the return after taxes may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period.

XML

Label	Element	Value
Risk Return [Abstract]	rr_RiskReturnAbstract
Document Type	dei_DocumentType	485BPOS
Document Period End Date	dei_DocumentPeriodEndDate	Jun. 30, 2012
Registrant Name	dei_EntityRegistrantName	AdvisorShares Trust
Central Index Key	dei_EntityCentralIndexKey	0001408970
Amendment Flag	dei_AmendmentFlag	false
Document Creation Date	dei_DocumentCreationDate	Oct. 29, 2012
Document Effective Date	dei_DocumentEffectiveDate	Oct. 29, 2012
Accuvest Global Long Short ETF (Prospectus Summary) | Accuvest Global Long Short ETF | Accuvest Global Long Short ETF
Risk Return [Abstract]	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	AGLS
Accuvest Global Opportunities ETF (Prospectus Summary) | Accuvest Global Opportunities ETF | Accuvest Global Opportunities ETF
Risk Return [Abstract]	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	ACCU
Cambria Global Tactical ETF (Prospectus Summary) | Cambria Global Tactical ETF | Cambria Global Tactical ETF
Risk Return [Abstract]	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	GTAA
Madrona Domestic ETF (Prospectus Summary) | Madrona Domestic ETF | Madrona Domestic ETF
Risk Return [Abstract]	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	FWDD
Madrona International ETF (Prospectus Summary) | Madrona International ETF | Madrona International ETF
Risk Return [Abstract]	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	FWDI
Madrona Global Bond ETF (Prospectus Summary) | Madrona Global Bond ETF | Madrona Global Bond ETF
Risk Return [Abstract]	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	FWDB
Meidell Tactical Advantage ETF (Prospectus Summary) | Meidell Tactical Advantage ETF | Meidell Tactical Advantage ETF
Risk Return [Abstract]	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	MATH
Peritus High Yield ETF (Prospectus Summary) | Peritus High Yield ETF | Peritus High Yield ETF
Risk Return [Abstract]	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	HYLD
Ranger Equity Bear ETF (Prospectus Summary) | Ranger Equity Bear ETF | Ranger Equity Bear ETF
Risk Return [Abstract]	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	HDGE
Rockledge SectorSAM ETF (Prospectus Summary) | Rockledge SectorSAM ETF | Rockledge SectorSAM ETF
Risk Return [Abstract]	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	SSAM
TrimTabs Float Shrink ETF (Prospectus Summary) | TrimTabs Float Shrink ETF | TrimTabs Float Shrink ETF
Risk Return [Abstract]	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	TTFS
WCM/BNY Mellon Focused Growth ADR ETF (Prospectus Summary) | WCM/BNY Mellon Focused Growth ADR ETF | WCM/BNY Mellon Focused Growth ADR ETF
Risk Return [Abstract]	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	AADR

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Madrona Domestic ETF (Prospectus Summary) | Madrona Domestic ETF

MADRONA DOMESTIC ETF

INVESTMENT OBJECTIVE

The Madrona Domestic ETF (the "Fund") seeks to provide long-term capital
appreciation above the capital appreciation of its benchmark, the S&P 500
Index.

FUND FEES AND EXPENSES

This table describes the fees and expenses that you may pay if you buy and hold
shares of the Fund. Most investors will incur customary brokerage commissions
when buying or selling shares of the Fund, which are not reflected in the table
below.

SHAREHOLDER FEES (fees paid directly from your investment) None

ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses		Madrona Domestic ETF
MANAGEMENT FEES		0.80%
DISTRIBUTION (12b-1) FEES		none
OTHER EXPENSES		0.66%
TOTAL ANNUAL FUND OPERATING EXPENSES		1.46%
FEE WAIVER AND/OR EXPENSE REIMBURSEMENT	[1]	0.21%
TOTAL ANNUAL FUND OPERATING EXPENSES AFTER FEE WAIVER AND/OR EXPENSE REIMBURSEMENT		1.25%

EXAMPLE

This Example is intended to help you compare the cost of investing in the shares
of the Fund with the cost of investing in other funds. This example does not
take into account creation or redemption transaction fees, or the brokerage
commissions that you pay when purchasing or selling shares of the Fund. If the
commissions were included, your costs would be higher.
  
The Example assumes that you invest $10,000 in the Fund for the time periods
indicated and then sell all of your shares at the end of those periods. The
Example also assumes that your investment has a 5% return each year and that the
Fund's operating expenses remain the same. Although your actual costs may be
higher or lower, based on these assumptions your costs would be:

Expense Example (USD $)	Expense Example, with Redemption, 1 Year	Expense Example, with Redemption, 3 Years	Expense Example, with Redemption, 5 Years	Expense Example, with Redemption, 10 Years
Madrona Domestic ETF	127	441	778	1,729

PORTFOLIO TURNOVER

The Fund pays transaction costs, such as commissions, when it buys and sells
securities (or "turns over" its portfolio). A higher portfolio turnover may
indicate higher transaction costs and may result in higher taxes when Fund
shares are held in a taxable account. These costs, which are not reflected
in annual fund operating expenses or in the example, affect Fund performance.
This rate excludes the value of portfolio securities received or delivered as
a result of in-kind creations or redemptions of the Fund's shares. During the
most recent fiscal year, the Fund's portfolio turnover rate was 40% of the
average value of its portfolio.

PRINCIPAL INVESTMENT STRATEGIES

Madrona Funds, LLC (the "Sub-Advisor") seeks to achieve the Fund's investment objective
by selecting a portfolio of up to 500 of the largest U.S.-traded equity securities. The
Sub-Advisor selects the securities for the Fund's portfolio using a weighted allocation
system based on consensus analyst estimates of the present value of future expected
earnings relative to the share price of each security. The Sub-Advisor's investment
committee meets on a bi-weekly basis to monitor the portfolio and make allocation
decisions. The investment committee uses third-party analyst research and a proprietary
fundamental process to make allocation decisions and employs guidelines to protect against
dramatic over or under weighting of individual securities in the Fund's portfolio. The
investment committee relies heavily on a stock's price and market capitalization relative
to its future expected earnings in its analysis of individual securities.

PRINCIPAL RISKS OF INVESTING IN THE FUND

The Fund is subject to a number of risks that may affect the value of its
shares, including:

Early Closing Risk.  An unanticipated early closing of the NYSE Arca, Inc. (the
"Exchange") may result in a shareholder's inability to buy or sell shares of the
Fund on that day.

Equity Risk. The prices of equity securities rise and fall daily. These price
movements may result from factors affecting individual issuers, industries or
the stock market as a whole. In addition, equity markets tend to move in cycles
which may cause stock prices to fall over short or extended periods of time.

Large-Capitalization Securities Risk. The Fund may invest in large-capitalization
companies. Large-capitalization securities tend to go in and out of favor based
on market and economic conditions. During a period when the demand for
large-capitalization securities is less than for other types of investments --
small-capitalization securities, for instance -- the Fund's performance could be
reduced.

Liquidity Risk. Trading in shares of the Fund may be halted because of market
conditions or for reasons that, in the view of the Exchange, make trading in
shares inadvisable.

Market Risk. Due to market conditions, the Fund's investments may fluctuate
significantly from day to day. This volatility may cause the value of your
investment in the Fund to decrease.

Trading Risk. Shares may trade below their net asset value ("NAV"). The NAV of
shares will fluctuate with changes in the market value of the Fund's holdings.
In addition, although the Fund's shares are currently listed on the Exchange,
there can be no assurance that an active trading market for shares will develop
or be maintained.

As with any fund, there is no guarantee that the Fund will achieve its investment
objective.

FUND PERFORMANCE

A comparison of the Fund's performance with that of a broad measure of market
performance may give some indication of the risks of an investment in the Fund;
however, the Fund is new and, therefore, does not have a performance history for
a full calendar year. Of course, once the Fund has performance, this past
performance (before and after taxes) does not necessarily indicate how the Fund
will perform in the future.

Updated performance information is available on the Fund's website at
www.advisorshares.com.

[1] AdvisorShares Investments, LLC ("the Advisor") has contractually agreed to reduce its fees and/or reimburse expenses to keep the Fund's Total Annual Fund Operating Expenses (excluding interest, taxes, brokerage commissions, Acquired Fund Fees and Expenses, and extraordinary expenses) from exceeding 1.25% of the Fund's average daily net assets for a year from the date of this Prospectus and for an indefinite period thereafter subject to annual approval by the AdvisorShares Trust Board of Trustees (the "Board"). The expense limitation agreement (i) may be terminated at any time by the Board, and (ii) will be terminated upon termination of the investment advisory agreement between the Advisor and the Fund.

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Cambria Global Tactical ETF (Prospectus Summary) | Cambria Global Tactical ETF

CAMBRIA GLOBAL TACTICAL ETF

INVESTMENT OBJECTIVE

The Cambria Global Tactical ETF (the "Fund") seeks to preserve and grow capital
from investments in the U.S. and foreign equity, fixed income, commodity and
currency markets, independent of market direction.

FUND FEES AND EXPENSES

This table describes the fees and expenses that you may pay if you buy and hold
shares of the Fund. Most investors will incur customary brokerage commissions
when buying or selling shares of the Fund, which are not reflected in the table
below.

SHAREHOLDER FEES (fees paid directly from your investment) None

ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses		Cambria Global Tactical ETF
MANAGEMENT FEES		0.90%
DISTRIBUTION (12b-1) FEES		none
OTHER EXPENSES		0.18%
ACQUIRED FUND FEES AND EXPENSES	[1]	0.33%
TOTAL ANNUAL FUND OPERATING EXPENSES	[2]	1.41%
FEE WAIVER AND/OR EXPENSE REIMBURSEMENT	[3]	0.09%
TOTAL ANNUAL FUND OPERATING EXPENSES AFTER FEE WAIVER AND/OR EXPENSE REIMBURSEMENT	[2]	1.32%

EXAMPLE

This Example is intended to help you compare the cost of investing in the shares
of the Fund with the cost of investing in other funds. This Example does not
take into account creation or redemption transaction fees, or the brokerage
commissions that you pay when purchasing or selling shares of the Fund. If the
commissions were included, your costs would be higher.
  
The Example assumes that you invest $10,000 in the Fund for the time periods
indicated and then sell all of your shares at the end of those periods. The
Example also assumes that your investment has a 5% return each year and that the
Fund's operating expenses remain the same. Although your actual costs may be
higher or lower, based on these assumptions your costs would be:

Expense Example (USD $)	Expense Example, with Redemption, 1 Year	Expense Example, with Redemption, 3 Years	Expense Example, with Redemption, 5 Years	Expense Example, with Redemption, 10 Years
Cambria Global Tactical ETF	134	436	760	1,678

PORTFOLIO TURNOVER

The Fund pays transaction costs, such as commissions, when it buys and sells
securities (or "turns over" its portfolio). A higher portfolio turnover may
indicate higher transaction costs and may result in higher taxes when Fund
shares are held in a taxable account. These costs, which are not reflected in
Total 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 in-kind creations or redemptions of the Fund's shares.
During the most recent fiscal period, the Fund's portfolio turnover rate was
475% of the average value of its portfolio.

PRINCIPAL INVESTMENT STRATEGIES

The Fund is considered a "fund of funds" that seeks to achieve its investment
objective by primarily investing in other exchange-traded funds (the "Underlying
ETFs") that offer diversified exposure, including inverse exposure, to global
regions, countries, styles (market capitalization, value, growth, etc.) or
sectors, and other exchange traded products ("ETPs") including, but not limited
to, exchange-traded notes ("ETNs"), exchange-traded currency trusts, and
closed-end funds.

The Fund seeks to preserve and grow capital by producing absolute returns with
reduced volatility and manageable risk and drawdowns. The Fund's investment
strategies are inherently designed as risk-management and capital preservation
approaches. The Fund will invest in Underlying ETFs and ETPs spanning all the
major world asset classes including equities, bonds, real estate, commodities,
and currencies. Cambria Investment Management, L.P. (the "Sub-Advisor") will
utilize a quantitative approach with strict risk management controls to actively
manage the Fund's portfolio in an attempt to control downside losses and protect
capital. The wide diversification coupled with prudent portfolio management
should allow for the Fund to perform in any economic environment.

PRINCIPAL RISKS OF INVESTING IN THE FUND

The Fund is subject to a number of risks that may affect the value of its
shares, including:

Allocation Risk. The Fund's particular allocations may have a significant effect
on the Fund's performance. Allocation risk is the risk that the selection of
Underlying ETFs and ETPs and the allocation of assets among such Underlying ETFs
and ETPs will cause the Fund to underperform other funds with a similar investment
objective that do not allocate their assets in the same manner or the market as
a whole.

Closed-End Fund Risk. Secondary market trading prices of closed-end funds should
be expected to fluctuate and such prices may be higher or lower than the net
asset value ("NAV") of a closed-end fund's portfolio holdings. There can be no
guarantee that shares of a closed-end held by the Fund will not trade at a
persistent and ongoing discount. Nor can there be any guarantee that an active
market in shares of closed- end funds held by the Fund will exist. The Fund may
not be able to sell closed-end fund shares at a price equal to the NAV of the
closed-end fund.
  
Early Closing Risk. An unanticipated early closing of NYSE Arca, Inc. (the
"Exchange") may result in a shareholder's inability to buy or sell shares of the
Fund on that day.

ETN Risk. ETNs are senior, unsecured unsubordinated debt securities issued by an
underwriting bank that are designed to provide returns that are linked to a
particular benchmark less investor fees. ETNs have a maturity date and generally,
are backed only by the creditworthiness of the issuer. As a result, the value of
an ETN may be influenced by time to maturity, level of supply and demand for the
ETN, volatility and lack of liquidity in the underlying market (e.g., the
commodities market), changes in the applicable interest rates, and changes in the
issuer's credit rating and economic, legal, political or geographic events that
affect the referenced market. ETNs also may be subject to commodities market risk
and credit risk.

Equity Risk. The prices of equity securities rise and fall daily. These price
movements may result from factors affecting individual issuers, industries or
the stock market as a whole. In addition, equity markets tend to move in cycles
which may cause stock prices to fall over short or extended periods of time.

Liquidity Risk. Trading in shares of the Fund may be halted because of market
conditions or for reasons that, in the view of the Exchange, make trading in
shares inadvisable. In addition, trading in listed securities is subject to
trading halts caused by extraordinary market volatility pursuant to "circuit
breaker" rules. The Fund's investments in ETNs and certain other ETPs may be
subject to restrictions on the amount and timing of any redemptions, which may
adversely affect the value of the Fund's portfolio holdings.

Market Risk. Due to market conditions, the Fund's investments may fluctuate
significantly from day to day. This volatility may cause the value of your
investment in the Fund to decrease.

Portfolio Turnover Risk. The Fund's investment strategy may result in relatively
high portfolio turnover, which may result in increased transaction costs and may
lower Fund performance.

Tax Risk. In order to qualify for the favorable U.S. federal income tax treatment
accorded to "regulated investment companies," the Fund must derive at least 90%
of its gross income in each taxable year from certain categories of income
("qualifying income"). Certain of the Fund's investments may generate income that
is not qualifying income. If the Fund were to fail to meet the qualifying income
test and fail to qualify as a regulated investment company, it would be taxed in
the same manner as an ordinary corporation, and distributions to its shareholders
would not be deductible by the Fund in computing its taxable income.

Trading Risk. Shares of the Fund may trade below their NAV. The NAV of shares
will fluctuate with changes in the market value of the Fund's holdings. In
addition, although the Fund's shares are currently listed on the Exchange, there
can be no assurance that an active trading market for shares will develop or be
maintained.

Underlying ETF and ETP Investment Risk. Through its investments in the Underlying
ETFs and ETPs, the Fund will be subject to the risks associated with such vehicles'
investments, or reference assets in the case of ETNs, including the possibility
that the value of the securities or instruments held by an Underlying ETF or ETP
could decrease. These risks include any combination of the risks described below.
The Fund's exposure to a particular risk will be proportionate to the Fund's overall
allocation to the Underlying ETFs or ETPs and their exposure to various security
types and geographic regions.

  Commodity Risk. Because certain of the Underlying ETFs and ETPs may have a      
  significant portion of their assets exposed directly or indirectly to commodities
  or commodity-linked securities, developments affecting commodities may have a
  disproportionate impact on such Underlying ETF and ETPs. An ETF's or ETP's
  investment in commodities or commodity-linked derivative instruments may subject
  the ETF or ETP (and indirectly the Fund) to greater volatility than investments
  in traditional securities, particularly if the instruments involve leverage. The
  value of commodities and commodity- linked derivative instruments may be affected
  by changes in overall market movements, commodity index volatility, changes in
  interest rates, or factors affecting a particular industry or commodity, such as
  drought, floods, weather, livestock disease, embargoes, tariffs and international
  economic, political and regulatory developments.
                                                        
  Credit Risk. Certain of the Underlying ETFs and ETPs are subject to the risk    
  that a decline in the credit quality of a portfolio investment or a counterparty
  to a portfolio investment could cause the Underlying ETF's or ETP's share price
  to fall. The Underlying ETFs and ETPs could lose money if the issuer or guarantor
  of a portfolio investment or the counterparty to a derivatives contract fails to
  make timely principal or interest payments or otherwise honor its obligations.                                                                

  Emerging Markets Risk. There is an increased risk of price volatility associated
  with an Underlying ETF's or ETP's investments in, or an ETN's exposure to, emerging
  market countries, which may be magnified by currency fluctuations relative to the
  U.S. dollar.                                                    

  Fixed Income Risk. An Underlying ETF's investments in fixed income securities   
  are subject to the risk that the securities may be paid off earlier or later    
  than expected. Either situation could cause the Underlying ETF to hold          
  securities paying lower-than-market rates of interest, which could hurt the     
  Fund's yield or share price.                                                    

  Foreign Currency Risk. Currency movements may negatively impact the value of an
  Underlying ETF or ETP portfolio security even when there is no change in the    
  value of the security in the issuer's home country. Certain of the Underlying   
  ETFs and ETPs may not hedge against the risk of currency exchange rate          
  fluctuations, while other Underlying ETFs or ETPs may if there is volatility in
  currency exchange rates.                                                        

  Foreign Securities Risk. An Underlying ETF's investments in, or ETP's exposure  
  to, foreign issuers involve certain risks including, but not limited to, risks  
  of adverse changes in foreign economic, political, regulatory and other conditions,
  or changes in currency exchange rates or exchange control regulations (including
  limitations on currency movements and exchanges). In certain countries, legal
  remedies available to investors may be more limited than those available with
  respect to investments in the United States. In addition, the securities of
  some foreign companies may be less liquid and, at times, more volatile than
  securities of comparable U.S. companies.              

  Interest Rate Risk. An Underlying ETF's investments in or ETP's exposure to,    
  fixed income securities are subject to the risk that interest rates rise and    
  fall over time. As with any investment whose yield reflects current interest    
  rates, an Underlying ETF's or ETP's yield will change over time. During periods
  when interest rates are low, an Underlying ETF's or ETP's yield (and total      
  return) also may be low. To the extent that the investment adviser (or
  sub-adviser) of an Underlying ETF or issuer of an ETP anticipates interest rate
  trends imprecisely, the Underlying ETF or ETP could miss yield opportunities or
  its share price could fall.                                                     

  Real Estate Investment Trusts (REITs) Risk. Certain of the Underlying ETFs     
  invest in REITs. An Underlying ETF's investments in REITs will be subject to the
  risks associated with the direct ownership of real estate. 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. REITs
  are more dependent upon specialized management skills, have limited diversification
  and are, therefore, generally dependent on their ability to generate cash flow to
  make distributions to shareholders. In addition, REITs have their own expenses,
  and the Underlying ETF will bear a proportionate share of those expenses.                                                              

As with any fund, there is no guarantee that the Fund will achieve its investment
objective.

FUND PERFORMANCE

The bar chart and table that follow show how the Fund has performed on a
calendar year basis and provide an indication of the risks of investing in the
Fund. The table also shows how the Fund's performance compares to the S&P 500
Index, which is a broad-based, unmanaged measurement of changes in stock market
conditions based on the average of 500 widely held common stocks. Both the bar
chart and the table assume the reinvestment of all dividends and distributions.
Past performance (before and after taxes) does not necessarily indicate how the
Fund will perform in the future.

Updated performance information is available on the Fund's website at
www.advisorshares.com.

The Fund's year-to-date total return as of September 30, 2012 was 4.86%.

Best and Worst Quarter Returns (for the period reflected in the bar chart above)

                 Return      Quarter/Year
Highest Return     2.59%         1Q/2011
Lowest Return     -7.79%         3Q/2011

AVERAGE ANNUAL TOTAL RETURNS FOR THE PERIODS ENDING DECEMBER 31, 2011

Average Annual Total Returns	Label		1 Year	Since Inception	Inception Date
Cambria Global Tactical ETF	Return Before Taxes Based on NAV		(7.34%)	(4.21%)	Oct. 25, 2010
Cambria Global Tactical ETF After Taxes on Distributions	Return After Taxes on Distributions	[1]	(7.46%)	(4.54%)	Oct. 25, 2010
Cambria Global Tactical ETF After Taxes on Distributions and Sales	Return After Taxes on Distributions and Sale of Fund Shares	[1]	(4.62%)	(3.70%)	Oct. 25, 2010
Cambria Global Tactical ETF S&P 500 Index	S&P 500 Index (Reflects no deduction for fees, expenses, or taxes)		2.11%	7.35%	Oct. 25, 2010

[1] As a shareholder in certain Underlying ETFs (the "Acquired Funds"), the Fund will indirectly bear its proportionate share of the fees and expenses of the Acquired Funds. "Acquired Fund Fees and Expenses" do not reflect the operating expenses of exchange-traded products in which the Fund invests that are not investment companies, including exchange-traded notes and exchange-traded pooled investment vehicles not registered pursuant to the Investment Company Act of 1940, as amended (the "1940 Act").

[2] The Total Annual Fund Operating Expenses and Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement in this fee table may not correlate to the expense ratios in the Fund's financial highlights (and the Fund's financial statements) because the financial highlights include only the Fund's direct operating expenses and do not include Acquired Fund Fees and Expenses.

[3] The AdvisorShares Investment, LLC (the "Advisor") has contractually agreed to reduce its fees and/or reimburse expenses in order to keep net expenses (excluding interest, taxes, brokerage commissions, Acquired Fund Fees and Expenses, and extraordinary expenses) from exceeding 1.25% of the Fund's average daily net assets for a year from the date of this Prospectus and for an indefinite period thereafter subject to annual approval by the AdvisorShares Trust Board of Trustees (the "Board"). The expense limitation agreement (i) may be terminated at any time by the Board and (ii) will be terminated upon termination of the investment advisory agreement between the Advisor and the Fund.

[1] After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on your tax situation and may differ from those shown and are not relevant if you hold your shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. In some cases the return after taxes may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period.

XML

Label	Element	Value
Risk Return [Abstract]	rr_RiskReturnAbstract
ProspectusDate	rr_ProspectusDate	Oct. 29, 2012
Accuvest Global Opportunities ETF (Prospectus Summary) | Accuvest Global Opportunities ETF
Risk Return [Abstract]	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	ACCUVEST GLOBAL OPPORTUNITIES ETF
Objective [Heading]	rr_ObjectiveHeading	INVESTMENT OBJECTIVE
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The Accuvest Global Opportunities ETF (the "Fund") seeks long-term capital appreciation in excess of global equity benchmarks such as the MSCI All Country World Index.
Expense [Heading]	rr_ExpenseHeading	FUND FEES AND EXPENSES
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. Most investors will incur customary brokerage commissions when buying or selling shares of the Fund, which are not reflected in the table below.
Shareholder Fees Caption [Text]	rr_ShareholderFeesCaption	SHAREHOLDER FEES (fees paid directly from your investment) None
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	PORTFOLIO TURNOVER
Portfolio Turnover [Text Block]	rr_PortfolioTurnoverTextBlock	The Fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in Total 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 in-kind creations or redemptions of the Fund's shares. For the period from January 25, 2012, the Fund's commencement of operations, through the most recent fiscal year ended June 30, 2012, the Fund's portfolio turnover rate was 135% of the average value of its portfolio.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	135.00%
Expense Exchange Traded Fund Commissions [Text]	rr_ExpenseExchangeTradedFundCommissions	Most investors will incur customary brokerage commissions when buying or selling shares of the Fund, which are not reflected in the table below.
Expenses Not Correlated to Ratio Due to Acquired Fund Fees [Text]	rr_ExpensesNotCorrelatedToRatioDueToAcquiredFundFees	The Total Annual Fund Operating Expenses and Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement in this fee table may not correlate to the expense ratios in the Fund's financial highlights (and the Fund's financial statements) because the financial highlights include only the Fund's direct operating expenses and do not include Acquired Fund Fees and Expenses.
Expense Example [Heading]	rr_ExpenseExampleHeading	EXAMPLE
Expense Example Narrative [Text Block]	rr_ExpenseExampleNarrativeTextBlock	This Example is intended to help you compare the cost of investing in the shares of the Fund with the cost of investing in other funds. This Example does not take into account creation or redemption transaction fees, or the brokerage commissions that you pay when purchasing or selling shares of the Fund. If commissions were included, your costs would be higher. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then sell all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. 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 a "fund of funds" that seeks to achieve its investment objective by investing primarily in other exchange traded funds (the "Underlying ETFs"). Accuvest Global Advisors (the "Sub-Advisor") seeks to achieve the Fund's investment objective by investing in Underlying ETFs that provide diversified exposure to select economies around the world. The Sub-Advisor ranks countries on a monthly basis using its proprietary country ranking model in order to determine their relative attractiveness. The Sub-Advisor then endeavors to invest in Underlying ETFs, which may be both affiliated and unaffiliated with the Fund, that individually or in combination correspond generally to the price and yield performance of the specific countries (or regions) identified as most attractive by the model. The Sub-Advisor believes that attractive returns can only be achieved by actively structuring portfolios distinct from simply tracking market indices. As a result, the Fund's portfolio will be invested only in countries with the highest rankings as identified by the Sub-Advisor's proprietary country ranking process.
Risk [Heading]	rr_RiskHeading	PRINCIPAL RISKS OF INVESTING IN THE FUND
Risk Narrative [Text Block]	rr_RiskNarrativeTextBlock	The Fund is subject to a number of risks that may affect the value of its shares, including:    Allocation Risk. The Fund's particular allocations may have a significant effect on the Fund's performance. Allocation risk is the risk that the selection of the Underlying ETFs and the allocation of assets among the Underlying ETFs will cause the Fund to underperform other funds with a similar investment objective that do not allocate their assets in the same manner or the market as a whole.    Early Closing Risk. An unanticipated early closing of the NYSE Arca, Inc. (the "Exchange") may result in a shareholder's inability to buy or sell shares of the Fund on that day.    Investment Risk. As with all investments, an investment in the Fund is subject to investment risk. Investors in the Fund could lose money, including the possible loss of the entire principal amount of an investment, over short or even long periods of time.    Liquidity Risk. Trading in shares of the Fund may be halted because of market conditions or for reasons that, in the view of the Exchange, make trading in shares inadvisable. In addition, trading in listed securities is subject to trading halts caused by extraordinary market volatility pursuant to "circuit breaker" rules. The Fund's investments in ETNs and certain other ETPs may be subject to restrictions on the amount and timing of any redemptions, which may adversely affect the value of the Fund's portfolio holdings.    Market Risk. Due to market conditions, the Fund's investments may fluctuate significantly from day to day. This volatility may cause the value of your investment in the Fund to decrease. Tax Risk. In order to qualify for the favorable U.S. federal income tax treatment accorded to "regulated investment companies," the Fund must derive at least 90% of its gross income in each taxable year from certain categories of income ("qualifying income"). Certain of the Fund's investments may generate income that is not qualifying income. If the Fund were to fail to meet the qualifying income test and fail to qualify as a regulated investment company, it would be taxed in the same manner as an ordinary corporation, and distributions to its shareholders would not be deductible by the Fund in computing its taxable income.    Trading Risk. Shares of the Fund may trade below their net asset value ("NAV"). The NAV of shares will fluctuate with changes in the market value of the Fund's holdings. In addition, although the Fund's shares are currently listed on the Exchange, there can be no assurance that an active trading market for shares will develop or be maintained.    Underlying ETF Investment Risk. Through its investments in the Underlying ETFs, the Fund will be subject to the risks associated with the Underlying ETFs' investments, including the possibility that the value of the securities held by an Underlying ETF could decrease. These risks include any combination of the risks described below. The Fund's exposure to a particular risk will be proportionate to the Fund's overall allocation to the Underlying ETFs and the Underlying ETFs' exposure to various security types, currencies, market sectors and geographic regions.      Emerging Markets Risk. There is an increased risk of price volatility             associated with an Underlying ETF's investments in, or exposure to, emerging       market countries, which may be magnified by currency fluctuations relative to      the U.S. dollar.                                                                   Equity Risk. The prices of equity securities in which an Underlying ETF invests,   or is exposed to, rise and fall daily. These price movements may result from   factors affecting individual companies, industries or the securities market   as a whole.                                                                        Fixed Income Risk. An Underlying ETF's investments in fixed income securities     are subject to the risk that the securities may be paid off earlier or later       than expected. Either situation could cause the Underlying ETF to hold             securities paying lower-than-market rates of interest, which could hurt the        Fund's yield or share price.                                                       Foreign Currency Risk. Currency movements may negatively impact the value of   an Underlying ETF security even when there is no change in the value of the           security in the issuer's home country. Certain of the Underlying ETFs may not      hedge against the risk of currency exchange rate fluctuations, while other         Underlying ETFs may if there is volatility in currency exchange rates.             Foreign Securities Risk. An Underlying ETF's investments in, or exposure to,      foreign issuers involve certain risks including, but not limited to, risks of      adverse changes in foreign economic, political, regulatory and other conditions,   or changes in currency exchange rates or exchange control regulations (including   limitations on currency movements and exchanges). In certain countries, legal      remedies available to investors may be more limited than those available with      respect to investments in the United States. In addition, the securities of some   foreign companies may be less liquid and, at times, more volatile than             securities of comparable U.S. companies.                                           Geographic Investment Risk. Each Underlying ETF invests a significant portion of   its assets in the securities of issuers organized in one or more jurisdictions     around the world, or in securities or instruments that provide exposure to such   issuers. As such, each Underlying ETF is likely to be impacted by economic         conditions or events affecting the particular market or markets reflected by its   name. For example, political and economic conditions and changes in regulatory,   tax, or economic policy in a country could significantly affect the market in      that country and in surrounding or related countries and have a negative impact   on the Underlying ETF's performance. Initially the Fund is expected to have        significant exposure to the regions listed below. The Sub-Advisor anticipates,     however, that the Fund's exposure to particular regions and countries will vary   greatly and may change frequently.                                                   ASIA. To the extent an Underlying ETF's investments have significant investment     exposure to Asia, the Underlying ETF will be susceptible to loss due to adverse     market, political, regulatory, and geographic events affecting that region.     While certain Asian economies are exemplars of growth and development others     have been and continue to be subject, to some extent, to over-extension of     credit, currency devaluations and restrictions, high unemployment, high     inflation, decreased exports and economic recessions.     EASTERN EUROPE. An Underlying ETF's investments may have significant exposure     to companies located in Eastern Europe. Because of this, companies in the     Underlying ETF's portfolio may react similarly to political, social, and     economic developments in any of the Eastern European countries.     EUROPE. Developed and emerging market countries in Europe will be significantly     affected by the fiscal and monetary controls of the European Monetary Union.     Changes in regulations on trade, decreasing imports or exports, changes in the     exchange rate of the euro and recessions among European countries may have a     significant adverse effect on the economies of other European countries.        PACIFIC REGION. Many of the Pacific region economies can be exposed to high     inflation rates, undeveloped financial services sectors, and heavy reliance on     international trade. The region's economies are also dependent on the economies     of Asia, Europe and the United States and, in particular, on the price and     demand for agricultural products and natural resources.     NORTH AMERICA. The United States is Canada's largest trading and investment     partner and the Canadian economy is significantly affected by developments in     the U.S. economy. The United States is also a significant trading partner of     many emerging markets in which the Underlying ETFs invest. Decreasing U.S.     imports, new trade regulations, changes in the U.S. dollar exchange rates or     a recession in the United States may have an adverse impact on these markets.      Investment Risk. Similar to an investment in the Fund, an investment in an         Underlying ETF is not a bank deposit and is not insured or guaranteed by the       Federal Deposit Insurance Corporation or any other government agency. The Fund     may experience losses with respect to its investment in an Underlying ETF.         Further, there is no guarantee that an Underlying ETF will achieve its             investment objective.                                                                 Large-Capitalization Risk. An Underlying ETF may invest in large-capitalization   companies. Returns on investments in stocks of large U.S. companies could trail   the returns on investments in stocks of small- and mid-capitalization companies   or the market as a whole.                                                             Mid-Capitalization Risk. An Underlying ETF may invest in mid-capitalization       companies. Mid-cap companies may be more volatile and more likely than large-cap   companies to have limited product lines, markets or financial resources, or        depend on a few key employees. Returns on investments in stocks of mid-cap         companies could trail the returns on investments in stocks of large- or            small-cap companies or the market as a whole.                                         Small-Capitalization Risk. An Underlying ETF may invest in small-capitalization   companies. Small-cap companies may be more vulnerable than larger, more            established organizations to adverse business or economic developments. In         particular, small-cap companies may have limited product lines, markets, and       financial resources and may be dependent upon a relatively small management        group. These securities may be listed on an exchange or trade over-the-counter,   and may or may not pay dividends. During a period when the performance of          small-cap stocks falls behind that of other types of investments, such as          large-cap stocks, the Underlying ETF's performance could be adversely affected.   Tracking Error Risk. Tracking error can arise due to factors such as the effect   of transaction fees and expenses incurred by the Underlying ETF, changes in        composition of the benchmark, and the ability of the ETF manager or sponsor to     successfully implement his or her investment strategy.                           As with any fund, there is no guarantee that the Fund will achieve its investment objective.
Risk Lose Money [Text]	rr_RiskLoseMoney	Investors in the Fund could lose money, including the possible loss of the entire principal amount of an investment, over short or even long periods of time.
Risk Not Insured Depository Institution [Text]	rr_RiskNotInsuredDepositoryInstitution	Similar to an investment in the Fund, an investment in an Underlying ETF is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	FUND PERFORMANCE
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	A comparison of the Fund's performance with that of a broad measure of market performance may give some indication of the risks of an investment in the Fund; however, the Fund is new and, therefore, does not have a performance history for a full calendar year. Of course, once the Fund has performance, this past performance (before and after taxes) does not necessarily indicate how the Fund will perform in the future.    Updated performance information is available on the Fund's website at www.advisorshares.com.
Performance One Year or Less [Text]	rr_PerformanceOneYearOrLess	A comparison of the Fund's performance with that of a broad measure of market performance may give some indication of the risks of an investment in the Fund; however, the Fund is new and, therefore, does not have a performance history for a full calendar year.
Performance Availability Website Address [Text]	rr_PerformanceAvailabilityWebSiteAddress	www.advisorshares.com
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	Of course, once the Fund has performance, this past performance (before and after taxes) does not necessarily indicate how the Fund will perform in the future.
Accuvest Global Opportunities ETF (Prospectus Summary) | Accuvest Global Opportunities ETF | Accuvest Global Opportunities ETF
Risk Return [Abstract]	rr_RiskReturnAbstract
MANAGEMENT FEES	rr_ManagementFeesOverAssets	0.95%
DISTRIBUTION (12b-1) FEES	rr_DistributionAndService12b1FeesOverAssets	none
OTHER EXPENSES	rr_OtherExpensesOverAssets	1.32%
ACQUIRED FUND FEES AND EXPENSES	rr_AcquiredFundFeesAndExpensesOverAssets	0.52%	[1]
TOTAL ANNUAL FUND OPERATING EXPENSES	rr_ExpensesOverAssets	2.79%	[2]
FEE WAIVER AND/OR EXPENSE REIMBURSEMENT	rr_FeeWaiverOrReimbursementOverAssets	(1.02%)	[3]
TOTAL ANNUAL FUND OPERATING EXPENSES AFTER FEE WAIVER AND/OR EXPENSE REIMBURSEMENT	rr_NetExpensesOverAssets	1.77%	[2]
Fee Waiver or Reimbursement over Assets, Date of Termination	rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination	a year from the date of this Prospectus and for an indefinite period thereafter subject to annual approval by the AdvisorShares Trust Board of Trustees (the "Board").
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	180
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	769
Expense Example, with Redemption, 5 Years	rr_ExpenseExampleYear05	1,384
Expense Example, with Redemption, 10 Years	rr_ExpenseExampleYear10	3,045

[1] As a shareholder in certain Underlying ETFs (the "Acquired Funds"), the Fund will indirectly bear its proportionate share of the fees and expenses of the Acquired Funds. "Acquired Fund Fees and Expenses" do not reflect the operating expenses of exchange traded products that are not investment companies in which the Fund invests, including exchange traded notes and exchange traded pooled investment vehicles not registered pursuant to the Investment Company Act of 1940, as amended (the "1940 Act").

[2] The Total Annual Fund Operating Expenses and Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement in this fee table may not correlate to the expense ratios in the Fund's financial highlights (and the Fund's financial statements) because the financial highlights include only the Fund's direct operating expenses and do not include Acquired Fund Fees and Expenses.

[3] AdvisorShares Investments, LLC (the "Advisor") has contractually agreed to reduce its fees and/or reimburse expenses in order to keep net expenses (excluding interest expense, taxes, brokerage commissions, Acquired Fund Fees and Expenses, and extraordinary expenses) from exceeding 1.25% of the Fund's average daily net assets for a year from the date of this Prospectus and for an indefinite period thereafter subject to annual approval by the AdvisorShares Trust Board of Trustees (the "Board"). The expense limitation agreement (i) may be terminated at any time by the Board and (ii) will be terminated upon termination of the investment advisory agreement between the Advisor and the Fund.

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Peritus High Yield ETF (Prospectus Summary) | Peritus High Yield ETF

PERITUS HIGH YIELD ETF

INVESTMENT OBJECTIVE

The Peritus High Yield ETF (the "Fund") seeks high current income with a
secondary goal of capital appreciation.

FUND FEES AND EXPENSES

This table describes the fees and expenses that you may pay if you buy and hold
shares of the Fund. Most investors will incur customary brokerage commissions
when buying or selling shares of the Fund, which are not reflected in the table
below.

SHAREHOLDER FEES (fees paid directly from your investment) None

ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses	Peritus High Yield ETF
MANAGEMENT FEES	1.10%
DISTRIBUTION (12b-1) FEES	none
OTHER EXPENSES	0.25%
TOTAL ANNUAL FUND OPERATING EXPENSES	1.35%

EXAMPLE

This Example is intended to help you compare the cost of investing in the shares
of the Fund with the cost of investing in other funds. This Example does not
take into account creation or redemption transaction fees, or the brokerage
commissions that you pay when purchasing or selling shares of the Fund. If
commissions were included, your costs would be higher.
  
The Example assumes that you invest $10,000 in the Fund for the time periods
indicated and then sell all of your shares at the end of those periods. The
Example also assumes that your investment has a 5% return each year and that the
Fund's operating expenses remain the same. Although your actual costs may be
higher or lower, based on these assumptions your costs would be:

Expense Example (USD $)	Expense Example, with Redemption, 1 Year	Expense Example, with Redemption, 3 Years	Expense Example, with Redemption, 5 Years	Expense Example, with Redemption, 10 Years
Peritus High Yield ETF	138	429	742	1,629

PORTFOLIO TURNOVER

The Fund pays transaction costs, such as commissions, when it buys and sells
securities (or "turns over" its portfolio). A higher portfolio turnover may
indicate higher transaction costs and may result in higher taxes when Fund
shares are held in a taxable account. These costs, which are not reflected in
Total 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 in-kind creations or redemptions of the Fund's shares.
During the most recent fiscal year ended June 30, 2012, the Fund's portfolio
turnover rate was 80% of the average value of its portfolio.

PRINCIPAL INVESTMENT STRATEGIES

Peritus I Asset Management, LLC (the "Sub-Advisor") seeks to achieve the Fund's
investment objective by selecting a focused portfolio of high-yield debt securities
(commonly referred to as "junk bonds"), which include senior and subordinated
corporate debt obligations (such as bonds, debentures, notes and commercial paper).
The Fund does not have any portfolio maturity limitation and may invest its assets
in instruments with short-term, medium-term or long-term maturities. The Fund also
may invest to a lesser extent in equity securities that the Sub-Advisor believes
will yield high dividends or are otherwise consistent with the Fund's investment
objective.

In selecting securities for the Fund's portfolio, the Sub-Advisor, subject to the
oversight of the Advisor and the Board of Trustees (the "Board"), performs an
independent investment analysis of each issuer to determine its creditworthiness.
The Sub-Advisor takes a deep value contrarian approach to the credit markets,
foregoing relative value and new issue participation in favor of absolute returns.
The Sub-Advisor focuses on the secondary market, predominantly investing in assets
at a discount to par ($100), allowing for a potential opportunity to generate
capital gains in addition to current yield. The Sub-Advisor believes that structural
and technical inefficiencies exist in the secondary credit markets, which create
tremendous investment opportunities, and that, by holding a diversified but limited
number of securities, the portfolio will be constructed of securities that provide
exposure to industries believed to offer the most value to the Fund.

PRINCIPAL RISKS OF INVESTING IN THE FUND

The Fund is subject to a number of risks that may affect the value of its
shares, including:

Credit Risk. The Fund is subject to the risk that an issuer of a fixed income
security, such as a corporate bond, may be unable or unwilling to make interest
and principal payments when due. The Fund is also subject to the related risk
that the value of a fixed income security may decline because of concerns about
the issuer's creditworthiness. Credit risk is heightened to the extent the Fund
invests in high yield securities or junk bonds.

Early Closing Risk. An unanticipated early closing of the NYSE Arca, Inc. (the
"Exchange") may result in a shareholder's inability to buy or sell shares of the
Fund on that day.

Fixed Income Risk. The market value of fixed income investments in which the
Fund may invest may change in response to interest rate changes and other
factors. During periods of falling interest rates, the value of outstanding
fixed income securities generally rise. Conversely, during periods of rising
interest rates, the value of fixed income securities generally decline.

High-Yield Risk. The Fund's investments in high yield securities and unrated
securities of similar credit quality (commonly known as "junk bonds") may be
subject to greater levels of interest rate, credit and liquidity risk than funds
that do not invest in such securities. These securities are considered
predominately speculative with respect to the issuer's continuing ability to
make principal and interest payments.

Issuer Risk. The value of a security may increase for a number of reasons which
directly relate to the issuer, such as management performance, improved financial
condition and increased demand of the issuer's goods or services. An increase in
the value of the securities of an issuer or guarantor of a debt instrument may
cause the value of your investment in the Fund to decrease.

Liquidity Risk. Trading in shares of the Fund may be halted because of market
conditions or for reasons that, in the view of the Exchange, make trading in
shares inadvisable.

Management Risk. The Sub-Advisor continuously evaluates the Fund's holdings,
purchases and sales with a view to achieving the Fund's investment objective.
However, the achievement of the stated investment objective cannot be
guaranteed. The Sub-Advisor's judgments about the markets, the economy, or
companies may not anticipate actual market movements, economic conditions or
company performance, and these judgments may affect the return on your
investment.

Market Risk. Due to market conditions, the value of the Fund's investments may
fluctuate significantly from day to day. This volatility may cause the value of
your investment in the Fund to decrease.
  
Prepayment Risk. The Fund may invest in mortgage related securities, which may
be paid off early if the borrower on the underlying mortgagee prepays the
mortgage or refinances the mortgage prior to the maturity date. If interest
rates are falling the Fund may have to reinvest the unanticipated proceeds at
lower interest rates, resulting in a decline in the Fund's income.

Trading Risk. Shares of the Fund may trade below their net asset value ("NAV").
The NAV of shares will fluctuate with changes in the market value of the Fund's
holdings. In addition, although the Fund's shares are currently listed on the
Exchange, there can be no assurance that an active trading market for shares
will develop or be maintained.

As with any fund, there is no guarantee that the Fund will achieve its investment
objective.

FUND PERFORMANCE

The bar chart and table that follow show how the Fund has performed on a
calendar year basis and provide an indication of the risks of investing in the
Fund. The table also shows how the Fund's performance compares to the Barclays
U.S. High Yield Index, which is an unmanaged index considered representative of
the universe of U.S. fixed rate, non-investment grade debt. Both the bar chart
and the table assume the reinvestment of all dividends and distributions. Past
performance (before and after taxes) does not necessarily indicate how the Fund
will perform in the future.

Updated performance information is available on the Fund's website at
www.advisorshares.com.

The Fund's year-to-date total return as of September 30, 2012 was 12.40%.

Best and Worst Quarter Returns (for the period reflected in the bar chart above)

                 Return      Quarter/Year
Highest Return     4.71%         1Q/2011
Lowest Return     -7.05%         3Q/2011

AVERAGE ANNUAL TOTAL RETURNS FOR THE PERIODS ENDING DECEMBER 31, 2011

Average Annual Total Returns	Label		1 Year	Since Inception	Inception Date
Peritus High Yield ETF	Return Before Taxes Based on NAV		1.92%	2.94%	Nov. 30, 2010
Peritus High Yield ETF After Taxes on Distributions	Return After Taxes on Distributions	[1]	(1.04%)	0.04%	Nov. 30, 2010
Peritus High Yield ETF After Taxes on Distributions and Sales	Return After Taxes on Distributions and Sale of Fund Shares	[1]	1.26%	0.89%	Nov. 30, 2010
Peritus High Yield ETF Barclays U.S. High Yield Index	Barclays U.S. High Yield Index (Reflects no deduction for fees, expenses, or taxes)		4.98%	6.33%	Nov. 30, 2010

[1] After-tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on your tax situation and may differ from those shown and are not relevant if you hold your shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. In some cases the return after taxes may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period.

XML

Label	Element	Value
Risk Return [Abstract]	rr_RiskReturnAbstract
ProspectusDate	rr_ProspectusDate	Oct. 29, 2012
TrimTabs Float Shrink ETF (Prospectus Summary) | TrimTabs Float Shrink ETF
Risk Return [Abstract]	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	TRIMTABS FLOAT SHRINK ETF
Objective [Heading]	rr_ObjectiveHeading	INVESTMENT OBJECTIVE
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	TrimTabs Float Shrink ETF (the "Fund") seeks to generate long-term returns in excess of the total return of the Russell 3000® Index (the "Index"), with less volatility than the Index.
Expense [Heading]	rr_ExpenseHeading	FUND FEES AND EXPENSES
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. Most investors will incur customary brokerage commissions when buying or selling shares of the Fund, which are not reflected in the table below.
Shareholder Fees Caption [Text]	rr_ShareholderFeesCaption	SHAREHOLDER FEES (fees paid directly from your investment) None
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	PORTFOLIO TURNOVER
Portfolio Turnover [Text Block]	rr_PortfolioTurnoverTextBlock	The Fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in Total 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 in-kind creations or redemptions of the Fund's shares. For the period from October 5, 2011, the Fund's commencement of operations, through the most recent fiscal year ended, the Fund's portfolio turnover rate was 201% of the average value of its portfolio.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	201.00%
Expense Exchange Traded Fund Commissions [Text]	rr_ExpenseExchangeTradedFundCommissions	Most investors will incur customary brokerage commissions when buying or selling shares of the Fund, which are not reflected in the table below.
Expense Example [Heading]	rr_ExpenseExampleHeading	EXAMPLE
Expense Example Narrative [Text Block]	rr_ExpenseExampleNarrativeTextBlock	This Example is intended to help you compare the cost of investing in the shares of the Fund with the cost of investing in other funds. This Example does not take into account creation or redemption transaction fees, or the brokerage commissions that you pay when purchasing or selling shares of the Fund. If commissions were included, your costs would be higher.    The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then sell all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Strategy [Heading]	rr_StrategyHeading	PRINCIPAL INVESTMENT STRATEGIES
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	The Fund is an actively managed exchange-traded fund that seeks to achieve its investment objective by primarily investing in the broad U.S. equity market, as represented by the Index. The Fund seeks to achieve this goal by investing in stocks with liquidity and fundamental characteristics that are historically associated with superior long-term performance. Based on extensive historical research, Trim Tabs Asset Management, LLC (the "Sub-Advisor") designed the following quantitative stock selection rules to make allocation decisions and to protect against dramatic over or under weighting of individual securities in the Fund's portfolio. Decile Ranking of Russell 3000® IndexStocks. The Sub-Advisor ranks stocks in the Index by decile based on the following criteria:    (i) the decrease in their outstanding shares over approximately the past 120    days ("float shrink");    (ii) the increase in free cash flow (the money available to the company that is    not used to pay for its daily operations) over approximately the past 120 days;    and    (iii) the decrease in leverage over approximately the past 120 days. Leverage is    measured as the ratio of total liabilities to total assets. The Sub-Advisor uses    the relative decrease in leverage rather than amount of leverage itself as a    criterion because the degree of leverage varies across industries. The top decile of each respective ranking consists of the stocks of the companies with (1) the strongest reduction in shares outstanding, (2) the strongest growth in free cash flow, and (3) the largest decrease in leverage, respectively. Stock Selection Algorithm. The Sub-Advisor uses an algorithm to give a relative weight to the three decile rankings, combining them in a single ranking (combined ranking). The algorithm places a higher weight on the float shrink ranking, followed by the free cash flow ranking, followed by the leverage ranking. The Fund under normal circumstances invests in 80 to 120 stocks from among the tenth percentile of stocks with the highest combined ranking.
Risk [Heading]	rr_RiskHeading	PRINCIPAL RISKS OF INVESTING IN THE FUND
Risk Narrative [Text Block]	rr_RiskNarrativeTextBlock	The Fund is subject to a number of risks that may affect the value of its shares, including: Early Closing Risk. An unanticipated early closing of the NYSE Arca, Inc. (the "Exchange") may result in a shareholder's inability to buy or sell shares of the Fund on that day. Equity Risk. The prices of equity securities rise and fall daily. These price movements may result from factors affecting individual issuers, industries or the stock market as a whole. In addition, equity markets tend to move in cycles which may cause stock prices to fall over short or extended periods of time.    Large-Capitalization Securities Risk. The Fund may invest in large-capitalization companies. Large- capitalization securities tend to go in and out of favor based on market and economic conditions. During a period when the demand for large-capitalization securities is less than for other types of investments -- small- capitalization securities, for instance -- the Fund's performance could be reduced. Liquidity Risk. Trading in shares of the Fund may be halted because of market conditions or for reasons that, in the view of the Exchange, make trading in shares inadvisable. Management Risk. The Sub-Advisor continuously evaluates the Fund's holdings, purchases and sales with a view to achieving the Fund's investment objective. However, the achievement of the stated investment objective cannot be guaranteed. The Sub-Advisor's judgments about the markets, the economy, or companies may not anticipate actual market movements, economic conditions or company performance, and these judgments may affect the return on your investment. Market Risk. Due to market conditions, the Fund's investments may fluctuate significantly from day to day. This volatility may cause the value of your investment in the Fund to decrease. Mid-Capitalization Securities Risk. The Fund may invest in mid-capitalization companies. Mid-size companies may be more volatile and more likely than large-capitalization companies to have limited product lines, markets or financial resources, or depend on a few key employees. Returns on investments in stocks of mid-size companies could trail the returns on investments in stocks of larger or smaller companies. Small-Capitalization Securities Risk. The Fund may invest in small-capitalization companies. Security prices of small capitalization companies may be more volatile than those of larger companies and therefore the Fund's share price may be more volatile than those of funds that invest a larger percentage of their assets in securities issued by larger-capitalization companies. Trading Risk. Shares of the Fund may trade below their net asset value ("NAV"). The NAV of shares will fluctuate with changes in the market value of the Fund's holdings. In addition, although the Fund's shares are currently listed on the Exchange, there can be no assurance that an active trading market for shares will develop or be maintained. As with any fund, there is no guarantee that the Fund will achieve its investment objective.
Risk Lose Money [Text]	rr_RiskLoseMoney	As with any fund, there is no guarantee that the Fund will achieve its investment objective.
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	FUND PERFORMANCE
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	A comparison of the Fund's performance with that of a broad measure of market performance may give some indication of the risks of an investment in the Fund; however, the Fund is new and, therefore, does not have a performance history for a full calendar year. Of course, once the Fund has performance, this past performance (before and after taxes) does not necessarily indicate how the Fund will perform in the future. Updated performance information is available on the Fund's website at www.advisorshares.com.
Performance One Year or Less [Text]	rr_PerformanceOneYearOrLess	A comparison of the Fund's performance with that of a broad measure of market performance may give some indication of the risks of an investment in the Fund; however, the Fund is new and, therefore, does not have a performance history for a full calendar year.
Performance Availability Website Address [Text]	rr_PerformanceAvailabilityWebSiteAddress	www.advisorshares.com
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	Of course, once the Fund has performance, this past performance (before and after taxes) does not necessarily indicate how the Fund will perform in the future.
TrimTabs Float Shrink ETF (Prospectus Summary) | TrimTabs Float Shrink ETF | TrimTabs Float Shrink ETF
Risk Return [Abstract]	rr_RiskReturnAbstract
MANAGEMENT FEES	rr_ManagementFeesOverAssets	0.99%
DISTRIBUTION (12b-1) FEES	rr_DistributionAndService12b1FeesOverAssets	none
OTHER EXPENSES	rr_OtherExpensesOverAssets	1.35%
TOTAL ANNUAL FUND OPERATING EXPENSES	rr_ExpensesOverAssets	2.34%
FEE WAIVER AND/OR EXPENSE REIMBURSEMENT	rr_FeeWaiverOrReimbursementOverAssets	(1.35%)	[1]
TOTAL ANNUAL FUND OPERATING EXPENSES AFTER FEE WAIVER AND/OR EXPENSE REIMBURSEMENT	rr_NetExpensesOverAssets	0.99%
Fee Waiver or Reimbursement over Assets, Date of Termination	rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination	a year from the date of this Prospectus and for an indefinite period thereafter subject to annual approval by the AdvisorShares Trust Board of Trustees (the "Board").
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	101
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	601
Expense Example, with Redemption, 5 Years	rr_ExpenseExampleYear05	1,128
Expense Example, with Redemption, 10 Years	rr_ExpenseExampleYear10	2,574

[1] AdvisorShares Investments, LLC (the "Advisor") has contractually agreed to reduce its fees and/or reimburse expenses in order to keep net expenses (excluding interest, taxes, brokerage commissions, Acquired Fund Fees and Expenses, and extraordinary expenses) from exceeding 0.99% of the Fund's average daily net assets for a year from the date of this Prospectus and for an indefinite period thereafter subject to annual approval by the AdvisorShares Trust Board of Trustees (the "Board"). The expense limitation agreement (i) may be terminated at any time by the Board and (ii) will be terminated upon termination of the investment advisory agreement between the Advisor and the Fund.

XML

Label	Element	Value
Risk Return [Abstract]	rr_RiskReturnAbstract
ProspectusDate	rr_ProspectusDate	Oct. 29, 2012
Madrona Domestic ETF (Prospectus Summary) | Madrona Domestic ETF
Risk Return [Abstract]	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	MADRONA DOMESTIC ETF
Objective [Heading]	rr_ObjectiveHeading	INVESTMENT OBJECTIVE
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The Madrona Domestic ETF (the "Fund") seeks to provide long-term capital appreciation above the capital appreciation of its benchmark, the S&P 500 Index.
Expense [Heading]	rr_ExpenseHeading	FUND FEES AND EXPENSES
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. Most investors will incur customary brokerage commissions when buying or selling shares of the Fund, which are not reflected in the table below.
Shareholder Fees Caption [Text]	rr_ShareholderFeesCaption	SHAREHOLDER FEES (fees paid directly from your investment) None
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	PORTFOLIO TURNOVER
Portfolio Turnover [Text Block]	rr_PortfolioTurnoverTextBlock	The Fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect Fund performance. This rate excludes the value of portfolio securities received or delivered as a result of in-kind creations or redemptions of the Fund's shares. During the most recent fiscal year, the Fund's portfolio turnover rate was 40% of the average value of its portfolio.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	40.00%
Expense Exchange Traded Fund Commissions [Text]	rr_ExpenseExchangeTradedFundCommissions	Most investors will incur customary brokerage commissions when buying or selling shares of the Fund, which are not reflected in the table below.
Expense Example [Heading]	rr_ExpenseExampleHeading	EXAMPLE
Expense Example Narrative [Text Block]	rr_ExpenseExampleNarrativeTextBlock	This Example is intended to help you compare the cost of investing in the shares of the Fund with the cost of investing in other funds. This example does not take into account creation or redemption transaction fees, or the brokerage commissions that you pay when purchasing or selling shares of the Fund. If the commissions were included, your costs would be higher.    The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then sell all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. 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	Madrona Funds, LLC (the "Sub-Advisor") seeks to achieve the Fund's investment objective by selecting a portfolio of up to 500 of the largest U.S.-traded equity securities. The Sub-Advisor selects the securities for the Fund's portfolio using a weighted allocation system based on consensus analyst estimates of the present value of future expected earnings relative to the share price of each security. The Sub-Advisor's investment committee meets on a bi-weekly basis to monitor the portfolio and make allocation decisions. The investment committee uses third-party analyst research and a proprietary fundamental process to make allocation decisions and employs guidelines to protect against dramatic over or under weighting of individual securities in the Fund's portfolio. The investment committee relies heavily on a stock's price and market capitalization relative to its future expected earnings in its analysis of individual securities.
Risk [Heading]	rr_RiskHeading	PRINCIPAL RISKS OF INVESTING IN THE FUND
Risk Narrative [Text Block]	rr_RiskNarrativeTextBlock	The Fund is subject to a number of risks that may affect the value of its shares, including: Early Closing Risk.  An unanticipated early closing of the NYSE Arca, Inc. (the "Exchange") may result in a shareholder's inability to buy or sell shares of the Fund on that day. Equity Risk. The prices of equity securities rise and fall daily. These price movements may result from factors affecting individual issuers, industries or the stock market as a whole. In addition, equity markets tend to move in cycles which may cause stock prices to fall over short or extended periods of time. Large-Capitalization Securities Risk. The Fund may invest in large-capitalization companies. Large-capitalization securities tend to go in and out of favor based on market and economic conditions. During a period when the demand for large-capitalization securities is less than for other types of investments -- small-capitalization securities, for instance -- the Fund's performance could be reduced. Liquidity Risk. Trading in shares of the Fund may be halted because of market conditions or for reasons that, in the view of the Exchange, make trading in shares inadvisable. Market Risk. Due to market conditions, the Fund's investments may fluctuate significantly from day to day. This volatility may cause the value of your investment in the Fund to decrease. Trading Risk. Shares may trade below their net asset value ("NAV"). The NAV of shares will fluctuate with changes in the market value of the Fund's holdings. In addition, although the Fund's shares are currently listed on the Exchange, there can be no assurance that an active trading market for shares will develop or be maintained. As with any fund, there is no guarantee that the Fund will achieve its investment objective.
Risk Lose Money [Text]	rr_RiskLoseMoney	As with any fund, there is no guarantee that the Fund will achieve its investment objective.
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	FUND PERFORMANCE
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	A comparison of the Fund's performance with that of a broad measure of market performance may give some indication of the risks of an investment in the Fund; however, the Fund is new and, therefore, does not have a performance history for a full calendar year. Of course, once the Fund has performance, this past performance (before and after taxes) does not necessarily indicate how the Fund will perform in the future. Updated performance information is available on the Fund's website at www.advisorshares.com.
Performance One Year or Less [Text]	rr_PerformanceOneYearOrLess	A comparison of the Fund's performance with that of a broad measure of market performance may give some indication of the risks of an investment in the Fund; however, the Fund is new and, therefore, does not have a performance history for a full calendar year.
Performance Availability Website Address [Text]	rr_PerformanceAvailabilityWebSiteAddress	www.advisorshares.com
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	Of course, once the Fund has performance, this past performance (before and after taxes) does not necessarily indicate how the Fund will perform in the future.
Madrona Domestic ETF (Prospectus Summary) | Madrona Domestic ETF | Madrona Domestic ETF
Risk Return [Abstract]	rr_RiskReturnAbstract
MANAGEMENT FEES	rr_ManagementFeesOverAssets	0.80%
DISTRIBUTION (12b-1) FEES	rr_DistributionAndService12b1FeesOverAssets	none
OTHER EXPENSES	rr_OtherExpensesOverAssets	0.66%
TOTAL ANNUAL FUND OPERATING EXPENSES	rr_ExpensesOverAssets	1.46%
FEE WAIVER AND/OR EXPENSE REIMBURSEMENT	rr_FeeWaiverOrReimbursementOverAssets	(0.21%)	[1]
TOTAL ANNUAL FUND OPERATING EXPENSES AFTER FEE WAIVER AND/OR EXPENSE REIMBURSEMENT	rr_NetExpensesOverAssets	1.25%
Fee Waiver or Reimbursement over Assets, Date of Termination	rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination	a year from the date of this Prospectus and for an indefinite period thereafter subject to annual approval by the AdvisorShares Trust Board of Trustees (the "Board").
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	127
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	441
Expense Example, with Redemption, 5 Years	rr_ExpenseExampleYear05	778
Expense Example, with Redemption, 10 Years	rr_ExpenseExampleYear10	1,729

[1] AdvisorShares Investments, LLC ("the Advisor") has contractually agreed to reduce its fees and/or reimburse expenses to keep the Fund's Total Annual Fund Operating Expenses (excluding interest, taxes, brokerage commissions, Acquired Fund Fees and Expenses, and extraordinary expenses) from exceeding 1.25% of the Fund's average daily net assets for a year from the date of this Prospectus and for an indefinite period thereafter subject to annual approval by the AdvisorShares Trust Board of Trustees (the "Board"). The expense limitation agreement (i) may be terminated at any time by the Board, and (ii) will be terminated upon termination of the investment advisory agreement between the Advisor and the Fund.

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Madrona Global Bond ETF (Prospectus Summary) | Madrona Global Bond ETF

MADRONA GLOBAL BOND ETF

INVESTMENT OBJECTIVE

The Madrona Global Bond ETF (the "Fund") seeks investment results that exceed
the price and yield performance of its benchmark, the Barclays Capital Aggregate
Bond Index.

FUND FEES AND EXPENSES

This table describes the fees and expenses that you may pay if you buy and hold
shares of the Fund. Most investors will incur customary brokerage commissions
when buying or selling shares of the Fund which are not reflected in the table
below.

SHAREHOLDER FEES (fees paid directly from your investment) None

ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses		Madrona Global Bond ETF
MANAGEMENT FEES		0.50%
DISTRIBUTION (12b-1) FEES		none
OTHER EXPENSES		0.49%
ACQUIRED FUND FEES AND EXPENSES	[1]	0.31%
TOTAL ANNUAL FUND OPERATING EXPENSES	[2]	1.30%
FEE WAIVER AND/OR EXPENSE REIMBURSEMENT	[3]	0.04%
TOTAL ANNUAL FUND OPERATING EXPENSES AFTER FEE WAIVER AND/OR REIMBURSEMENTS	[2]	1.26%

EXAMPLE

This Example is intended to help you compare the cost of investing in the shares
of the Fund with the cost of investing in other funds. This example does not
take into account creation or redemption transaction fees, or the brokerage
commissions that you pay when purchasing or selling shares of the Fund. If the
commissions were included, your costs would be higher.
   
The Example assumes that you invest $10,000 in the Fund for the time periods
indicated and then sell all of your shares at the end of those periods. The
Example also assumes that your investment has a 5% return each year and that the
Fund's operating expenses remain the same. Although your actual costs may be
higher or lower, based on these assumptions your costs would be:

Expense Example (USD $)	Expense Example, with Redemption, 1 Year	Expense Example, with Redemption, 3 Years	Expense Example, with Redemption, 5 Years	Expense Example, with Redemption, 10 Years
Madrona Global Bond ETF	128	407	707	1,559

PORTFOLIO TURNOVER

The Fund pays transaction costs, such as commissions, when it buys and sells
securities (or "turns over" its portfolio). A higher portfolio turnover may
indicate higher transaction costs and may result in higher taxes when Fund
shares are held in a taxable account. These costs, which are not reflected
in annual fund operating expenses or in the example, affect Fund performance.
This rate excludes the value of portfolio securities received or delivered as
a result of in-kind creations or redemptions of the Fund's shares. During the
most recent fiscal year, the Fund's portfolio turnover rate was 12% of the
average value of its portfolio.

PRINCIPAL INVESTMENT STRATEGIES

Madrona Funds, LLC (the "Sub-Advisor") seeks to achieve the Fund's investment
objective by selecting a portfolio of fixed income (bond) exchange traded funds
(the "Underlying ETFs") and other exchange traded products ("ETPs"), including,
but not limited to, exchange traded notes ("ETNs"), exchange traded currency
trusts, and exchange-traded commodity pools. The Fund invests in ETFs that
provide exposure to at least 12 distinct bond classes, including, but not
limited to, short-term treasury bonds, municipal bonds, and high-yield U.S.
corporate bonds (sometimes referred to as "junk bonds"). The Sub-Advisor will
construct the Fund's portfolio using a weighted allocation system based on yield
curve analysis of each bond category. The investment committee meets on a
bi-weekly basis to monitor the Fund's portfolio and make allocation decisions.
The investment committee uses third-party analyst research and a proprietary
fundamental process to make allocation decisions. Each major bond category will
have a three percent minimum percentage inclusion in the Fund's portfolio.

PRINCIPAL RISKS OF INVESTING IN THE FUND

The Fund is subject to a number of risks that may affect the value of its
shares, including

Early Closing Risk. An unanticipated early closing of the NYSE Arca, Inc. (the
"Exchange") may result in a shareholder's inability to buy or sell shares of
the Fund on that day.

ETN Risk. ETNs are senior, unsecured unsubordinated debt securities issued by an
underwriting bank that are designed to provide returns that are linked to a
particular benchmark less investor fees. ETNs have a maturity date and generally,
are backed only by the creditworthiness of the issuer. As a result, the value of
an ETN may be influenced by time to maturity, level of supply and demand for the
ETN, volatility and lack of liquidity in the underlying market (e.g., the
commodities market), changes in the applicable interest rates, and changes in the
issuer's credit rating and economic, legal, political or geographic events that
affect the referenced market. ETNs also may be subject to commodities market
risk and credit risk.

Liquidity Risk. Trading in shares of the Fund may be halted because of market
conditions or for reasons that, in the view of the Exchange, make trading in
shares inadvisable. In addition, trading in listed securities is subject to
trading halts caused by extraordinary market volatility pursuant to "circuit
breaker" rules. The Fund's investments in ETNs and certain other ETPs may be
subject to restrictions on the amount and timing of any redemptions, which may
adversely affect the value of the Fund's portfolio holdings.

Market Risk. Due to market conditions, the Fund's investments may fluctuate
significantly from day to day. This volatility may cause the value of your
investment in the Fund to decrease.
  
Tax Risk. In order to qualify for the favorable U.S. federal income tax
treatment accorded to "regulated investment companies," the Fund must derive
at least 90% of its gross income in each taxable year from certain categories
of income ("qualifying income"). Certain of the Fund's investments may generate
income that is not qualifying income. If the Fund were to fail to meet the
qualifying income test and fail to qualify as a regulated investment company, it
would be taxed in the same manner as an ordinary corporation, and distributions
to its shareholders would not be deductible by the Fund in computing its taxable
income.

Trading Risk. Shares of the Fund may trade below their NAV. The NAV of shares
will fluctuate with changes in the market value of the Fund's holdings. In
addition, although the Fund's shares are currently listed on the Exchange, there
can be no assurance that an active trading market for shares will develop or be
maintained.

Underlying ETF and ETP Investment Risk. Through its investments in the Underlying
ETFs or ETPs, the Fund will be subject to the risks associated with the Underlying
ETFs' or ETP's investments, including the possibility that the value of the
securities or assets held by an Underlying ETF or ETP could decrease. These risks
include any combination of the risks described below, although the Fund's exposure
to a particular risk will be proportionate to the Fund's overall allocation and
each Underlying ETF's or ETP's asset allocation.

  Commodities Risk. The commodities industries can be significantly affected by the
  level and volatility of commodity prices; world events including international
  monetary and political developments; import controls and worldwide competition;
  exploration and production spending; and tax and other government regulations and
  economic conditions.                                            

  Concentration Risk. An Underlying ETF or ETP may, at various times, concentrate
  in the securities of a particular industry, group of industries, or sector, and
  when a fund is overweighted in an industry, group of industries, or sector, it  
  may be more sensitive to any single economic, business, political, or regulatory
  occurrence than a fund that is not overweighted in an industry, group of        
  industries, or sector.                                                          

  Credit Risk. Certain of the Underlying ETFs or ETPs are subject to the risk that
  a decline in the credit quality of a portfolio investment could cause the       
  Underlying ETF's or ETP's share price to fall. The Underlying ETFs and ETPs     
  could lose money if the issuer or guarantor of a portfolio investment or the    
  counterparty to a derivatives contract fails to make timely principal or        
  interest payments or otherwise honor its obligations.                           

  Fixed Income Risk. An Underlying ETF's or ETP's investments in fixed income     
  securities are subject to the risk that the securities may be paid off earlier  
  or later than expected. Either situation could cause the Underlying ETF or ETP  
  to hold securities paying lower- than-market rates of interest, which could hurt
  the Fund's yield or share price.                                                

  High-Yield Risk. An Underlying ETF or ETP may invest in high-yield securities  
  and unrated securities of similar credit quality (commonly known as "junk bonds").
  High-yield securities generally pay higher yields (greater income) than investment
  in higher quality securities; however, high-yield securities and junk bonds may be
  subject to greater levels of interest rate, credit and liquidity risk than funds
  that do not invest in such securities, and are considered predominantly speculative
  with respect to an issuer's continuing ability to make principal and interest payments.

  Income Risk. An Underlying ETF or ETP may derive dividend and interest income   
  from certain of its investments. This income can vary widely over the short- and
  long-term. If prevailing market interest rates drop, distribution rates of an   
  Underlying ETF's or ETP's income producing investments may decline which then   
  may adversely affect the Fund's value.

  Interest Rate Risk. An Underlying ETF's or ETP's investments in fixed income    
  securities are subject to the risk that interest rates rise and fall over time.  
  As with any investment whose yield reflects current interest rates, an          
  Underlying ETF's or ETP's yield will change over time. During periods when      
  interest rates are low, an Underlying ETF's or ETP's yield (and total return)   
  also may be low. To the extent that the investment adviser (or sub-adviser) of  
  an Underlying ETF or ETP anticipates interest rate trends imprecisely, the      
  Underlying ETF or ETP could miss yield opportunities or its share price could   
  fall.

  Investment Risk. An investment in an Underlying ETF or ETP is not a bank deposit
  and is not insured or guaranteed by the Federal Deposit Insurance Corporation or
  any other government agency. The Fund may experience losses with respect to its
  investment in an Underlying ETF or ETP. Further, there is no guarantee that an  
  Underlying ETF or ETP will be able to achieve its objective.

As with any fund, there is no guarantee that the Fund will achieve its investment
objective.

FUND PERFORMANCE

A comparison of the Fund's performance with that of a broad measure of market
performance may give some indication of the risks of an investment in the Fund;
however, the Fund is new and, therefore, does not have a performance history for
a full calendar year. Of course, once the Fund has performance, this past
performance (before and after taxes) does not necessarily indicate how the Fund
will perform in the future.

Updated performance information is available on the Fund's website at
www.advisorshares.com.

[1] As a shareholder in certain Underlying ETFs (the "Acquired Funds"), the Fund will indirectly bear its proportionate share of the fees and expenses of the Acquired Funds. "Acquired Fund Fees and Expenses" do not reflect the operating expenses of exchange-traded products in which the Fund invests that are not investment companies, including exchange-traded notes and exchange-traded pooled investment vehicles not registered pursuant to the Investment Company Act of 1940, as amended (the "1940 Act").

[2] The Total Annual Fund Operating Expenses and Total Annual Fund Operating Expenses After Fee Waiver and/or Reimbursements in this fee table may not correlate to the expense ratios in the Fund's financial highlights (and the Fund's financial statements) because the financial highlights include only the Fund's direct operating expenses and do not include Acquired Fund Fees and Expenses, which are fees and expenses incurred indirectly by the Fund through its investments in the Acquired Funds.

[3] AdvisorShares Investments, LLC (the "Advisor") has contractually agreed to reduce its fees and/or reimburse expenses in order to keep net expenses (excluding interest, taxes, brokerage commissions, Acquired Fund Fees and Expenses, and extraordinary expenses) from exceeding 0.95% of the Fund's average daily net assets for a year from the date of this Prospectus and for an indefinite period thereafter subject to annual approval by the Board. The expense limitation agreement (i) may be terminated at any time by the Board and (ii) will be terminated upon termination of the investment advisory agreement between the Advisor and the Fund.