Label	Element	Value
Risk Return [Abstract]	rr_RiskReturnAbstract
ProspectusDate	rr_ProspectusDate	Oct. 28, 2012
Davidson Multi-Cap Equity Fund (Prospectus Summary) | Davidson Multi-Cap Equity Fund
Risk Return [Abstract]	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	Davidson Multi-Cap Equity Fund
Objective [Heading]	rr_ObjectiveHeading	Investment Objective
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The Davidson Multi-Cap Equity Fund (the "Multi-Cap Fund") seeks long-term capital appreciation.
Expense [Heading]	rr_ExpenseHeading	Fees and Expenses
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold shares of the Multi-Cap Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $25,000 in the Multi-Cap Fund. More information about these and other discounts is available from your financial professional and in the "Class A Shares" section on page 15 of the Funds' statutory Prospectus and the "Breakpoints/Volume Discounts and Sales Charge Waivers" section on page 41 of the Funds' Statement of Additional Information ("SAI").
Shareholder Fees Caption [Text]	rr_ShareholderFeesCaption	Shareholder Fees (fees paid directly from your investment)
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 Multi-Cap Fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Multi-Cap Fund shares are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Example, affect the Multi-Cap Fund's performance. During the most recent fiscal year, the Multi-Cap Fund's portfolio turnover rate was 13.95% of the average value of its portfolio.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	13.95%
Expense Breakpoint Discounts [Text]	rr_ExpenseBreakpointDiscounts	You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $25,000 in the Multi-Cap Fund.
Expense Breakpoint, Minimum Investment Required [Amount]	rr_ExpenseBreakpointMinimumInvestmentRequiredAmount	25,000
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 Multi-Cap Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Multi-Cap Fund for the time periods indicated and then either redeem or do not redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Multi-Cap Fund's operating expenses remain the same (taking into account the Expense Caps only in the first year). Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text]	rr_ExpenseExampleByYearCaption	If you redeem your shares at the end of the period:
Expense Example, No Redemption, By Year, Caption [Text]	rr_ExpenseExampleNoRedemptionByYearCaption	If you do not redeem your shares at the end of the period:
Strategy [Heading]	rr_StrategyHeading	Principal Investment Strategies of the Multi-Cap Fund
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	Under normal market conditions, the Multi-Cap Fund invests at least 80% of its net assets (including any borrowings for investment purposes) in equity securities across a wide range of market capitalizations and investment styles with attractive fundamental characteristics. The Fund looks for companies with reasonable valuations, prudent debt levels, cash flow generation, attractive growth characteristics and solid balance sheets. The Fund will invest its assets in both value and growth stocks, as well as dividend-paying and non-dividend-paying stocks. The Fund will seek to achieve its investment objective primarily through stock selection, with less emphasis on sector weightings. As a result, the Fund expects to only occasionally make modest sector changes, preferring to differentiate performance by relative movement in individual stocks than in sectors or industries . The Multi-Cap Fund may seek to enhance returns through the use of other investment strategies such as options (for hedging purposes), foreign securities (which may include American Depositary Receipts ("ADRs"), dollar-denominated foreign securities, or direct investment in foreign securities, including emerging markets), and other investment companies (including exchange-traded funds ("ETFs")). The Fund may invest up to 20% of its net assets in foreign securities. The Fund may invest up to 20% of its net assets in put and call options. The Advisor may sell a position if the fundamentals have deteriorated, catalysts fail to develop, or a stock exceeds fair valuation. The Advisor may also sell a position if a better alternative becomes available. At the discretion of the Advisor, the Multi-Cap Fund may invest its assets in cash, cash equivalents, and high-quality, short-term debt securities and money market instruments for temporary defensive purposes in response to adverse market, economic or political conditions.
Risk [Heading]	rr_RiskHeading	Principal Risks of Investing in the Multi-Cap Fund
Risk Narrative [Text Block]	rr_RiskNarrativeTextBlock	Losing all or a portion of your investment is a risk of investing in the Multi-Cap Fund. The following principal risks could affect the value of your investment: ·   Equity Risk. Stock prices may fluctuate widely over short or even extended        periods in response to company, market, or economic news. Stock markets also     tend to move in cycles, with periods of rising stock prices and periods of        falling stock prices.    ·   ETF and Mutual Fund Risk. ETFs are typically open-end investment companies        that are bought and sold on a national securities exchange. Investment            companies (mutual funds) and ETFs have management fees that are part of their     costs, and the Multi-Cap Fund will indirectly bear its proportionate share of     these costs.                                          ·   Foreign and Emerging Market Securities Risk. The Multi-Cap Fund may invest in     foreign securities which are subject to special risks. Foreign securities can     be more volatile than domestic (U.S.) securities. Securities markets of other     countries are generally smaller than U.S. securities markets. Many foreign        securities may be less liquid and more volatile than U.S. securities, which       could affect the Fund's investments. These risks are enhanced in emerging         markets. ·   Management Risk. Management risk means that your investment in the Multi-Cap     Fund varies with the success and failure of the Advisor's investment              strategies and the Advisor's research, analysis and determination of              portfolio securities. ·   Market and Issuer Risk. The risks that could affect the value of the              Multi-Cap Fund's shares and the total return on your investment include the       possibility that the securities held by the Fund will fluctuate as a result       of the movement of the overall stock market or of the value of the individual     securities held by the Fund. The value of securities held by the Fund may         also experience sudden, unpredictable drops in value or long periods of           decline in value due to reasons directly related to the issuer, including         management performance, financial leverage, and reduced demand for the            issuer's goods and services. ·   Options Risk. Options on securities may be subject to greater fluctuations in     value than an investment in the underlying securities. Purchasing and writing     put and call options are highly specialized activities and entail greater         than ordinary investment risks. ·   Small and Medium Companies Risk. Investing in securities of small and medium     capitalization companies may involve greater volatility than investing in         larger and more established companies because small and medium capitalization     companies can be subject to more abrupt or erratic share price changes than       larger, more established companies. The Multi-Cap Fund may be appropriate for investors who: ·   Have a long-term investment horizon; ·   Want to add an investment with potential for capital appreciation to              diversify their investment portfolio; and ·   Can accept the greater risks of investing in a portfolio with equity holdings.
Risk Lose Money [Text]	rr_RiskLoseMoney	Losing all or a portion of your investment is a risk of investing in the Multi-Cap Fund.
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	Performance
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	The following information provides some indication of the risks of investing in the Multi-Cap Fund by showing changes in the Fund's Class A shares' performance from year to year and by showing how the Fund's average annual returns for 1 year and since inception compare with those of a broad measure of market performance. Sales loads are not reflected in the bar chart; if these amounts were reflected, returns would be less than those shown. The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available on the Fund's website at www.davidsonmutualfunds.com or by calling the Fund toll-free at 1-877-332-0529.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	The following information provides some indication of the risks of investing in the Multi-Cap Fund by showing changes in the Fund's Class A shares' performance from year to year and by showing how the Fund's average annual returns for 1 year and since inception compare with those of a broad measure of market performance.
Performance Availability Phone [Text]	rr_PerformanceAvailabilityPhone	1-877-332-0529
Performance Availability Website Address [Text]	rr_PerformanceAvailabilityWebSiteAddress	www.davidsonmutualfunds.com
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	The Fund's past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future.
Bar Chart [Heading]	rr_BarChartHeading	Annual Returns as of December 31
Bar Chart Does Not Reflect Sales Loads [Text]	rr_BarChartDoesNotReflectSalesLoads	Sales loads are not reflected in the bar chart; if these amounts were reflected, returns would be less than those shown.
Bar Chart Closing [Text Block]	rr_BarChartClosingTextBlock	The Fund's year-to-date return as of September 30, 2012 was 15.36%. During the period of time shown in the bar chart, the highest return for a calendar quarter was 16.49% (quarter ended June 30, 2009) and the lowest return for a calendar quarter was -16.13% (quarter ended September 30, 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	The after-tax returns were calculated using the historical highest 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 an investor's tax situation and may differ from those shown, and after-tax returns are not relevant to investors who hold shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts ("IRAs").
Performance Table Explanation after Tax Higher	rr_PerformanceTableExplanationAfterTaxHigher	The return after taxes on distributions and sale of Fund shares is higher than other return figures when a capital loss occurs upon the redemption of Fund shares.
Performance Table Closing [Text Block]	rr_PerformanceTableClosingTextBlock	The after-tax returns were calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns are not relevant to investors who hold shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts ("IRAs"). The return after taxes on distributions and sale of Fund shares is higher than other return figures when a capital loss occurs upon the redemption of Fund shares.
Davidson Multi-Cap Equity Fund (Prospectus Summary) | Davidson Multi-Cap Equity Fund | Russell 3000® Index
Risk Return [Abstract]	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	Russell 3000® Index (reflects no deduction for fees, expenses or taxes)
1 Year	rr_AverageAnnualReturnYear01	1.03%
Since Inception	rr_AverageAnnualReturnSinceInception	1.34%
Inception Date	rr_AverageAnnualReturnInceptionDate	Aug. 11, 2008
Average Annual Returns, Since Inception Secondary	ck0001027596_AverageAnnualReturnSinceInceptionSecondary	15.91%
Average Annual Returns, Inception Date Secondary	ck0001027596_AverageAnnualReturnInceptionDateSecondary	Jul. 01, 2009
Davidson Multi-Cap Equity Fund (Prospectus Summary) | Davidson Multi-Cap Equity Fund | Class A
Risk Return [Abstract]	rr_RiskReturnAbstract
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	5.00%
Maximum Deferred Sales Charge (Load) (as a percentage of original purchase price or redemption price, whichever is less)	rr_MaximumDeferredSalesChargeOverOfferingPrice	none
Redemption Fee (as a percentage of amount redeemed on shares held for seven calendar days or less)	rr_RedemptionFeeOverRedemption	(1.00%)
Management Fees	rr_ManagementFeesOverAssets	0.65%
Distribution and Service (Rule 12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.25%
Other Expenses	rr_OtherExpensesOverAssets	0.61%
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.51%
Less: Fee Waiver and/or Expense Reimbursement	rr_FeeWaiverOrReimbursementOverAssets	(0.36%)	[1]
Net Annual Fund Operating Expenses	rr_NetExpensesOverAssets	1.15%
Fee Waiver or Reimbursement over Assets, Date of Termination	rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination	2013-10-27
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	611
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	920
Expense Example, with Redemption, 5 Years	rr_ExpenseExampleYear05	1,250
Expense Example, with Redemption, 10 Years	rr_ExpenseExampleYear10	2,182
Expense Example, No Redemption, 1 Year	rr_ExpenseExampleNoRedemptionYear01	611
Expense Example, No Redemption, 3 Years	rr_ExpenseExampleNoRedemptionYear03	920
Expense Example, No Redemption, 5 Years	rr_ExpenseExampleNoRedemptionYear05	1,250
Expense Example, No Redemption, 10 Years	rr_ExpenseExampleNoRedemptionYear10	2,182
Annual Return 2009	rr_AnnualReturn2009	28.60%
Annual Return 2010	rr_AnnualReturn2010	18.46%
Annual Return 2011	rr_AnnualReturn2011	(0.63%)
Year to Date Return, Label	rr_YearToDateReturnLabel	year-to-date return
Bar Chart, Year to Date Return, Date	rr_BarChartYearToDateReturnDate	Sep. 30, 2012
Bar Chart, Year to Date Return	rr_BarChartYearToDateReturn	15.36%
Highest Quarterly Return, Label	rr_HighestQuarterlyReturnLabel	highest return for a calendar quarter
Highest Quarterly Return, Date	rr_BarChartHighestQuarterlyReturnDate	Jun. 30, 2009
Highest Quarterly Return	rr_BarChartHighestQuarterlyReturn	16.49%
Lowest Quarterly Return, Label	rr_LowestQuarterlyReturnLabel	lowest return for a calendar quarter
Lowest Quarterly Return, Date	rr_BarChartLowestQuarterlyReturnDate	Sep. 30, 2011
Lowest Quarterly Return	rr_BarChartLowestQuarterlyReturn	(16.13%)
Label	rr_AverageAnnualReturnLabel	Return Before Taxes
1 Year	rr_AverageAnnualReturnYear01	(5.58%)
Since Inception	rr_AverageAnnualReturnSinceInception	(0.20%)
Inception Date	rr_AverageAnnualReturnInceptionDate	Aug. 11, 2008
Average Annual Returns, Since Inception Secondary	ck0001027596_AverageAnnualReturnSinceInceptionSecondary
Davidson Multi-Cap Equity Fund (Prospectus Summary) | Davidson Multi-Cap Equity Fund | Class A | After Taxes on Distributions
Risk Return [Abstract]	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	Return After Taxes on Distributions
1 Year	rr_AverageAnnualReturnYear01	(6.69%)
Since Inception	rr_AverageAnnualReturnSinceInception	(0.59%)
Inception Date	rr_AverageAnnualReturnInceptionDate	Aug. 11, 2008
Average Annual Returns, Since Inception Secondary	ck0001027596_AverageAnnualReturnSinceInceptionSecondary
Davidson Multi-Cap Equity Fund (Prospectus Summary) | Davidson Multi-Cap Equity Fund | Class A | 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 Year	rr_AverageAnnualReturnYear01	(2.76%)
Since Inception	rr_AverageAnnualReturnSinceInception	(0.26%)
Inception Date	rr_AverageAnnualReturnInceptionDate	Aug. 11, 2008
Average Annual Returns, Since Inception Secondary	ck0001027596_AverageAnnualReturnSinceInceptionSecondary
Davidson Multi-Cap Equity Fund (Prospectus Summary) | Davidson Multi-Cap Equity Fund | Class C
Risk Return [Abstract]	rr_RiskReturnAbstract
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	none
Maximum Deferred Sales Charge (Load) (as a percentage of original purchase price or redemption price, whichever is less)	rr_MaximumDeferredSalesChargeOverOfferingPrice	1.00%
Redemption Fee (as a percentage of amount redeemed on shares held for seven calendar days or less)	rr_RedemptionFeeOverRedemption	(1.00%)
Management Fees	rr_ManagementFeesOverAssets	0.65%
Distribution and Service (Rule 12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	1.00%
Other Expenses	rr_OtherExpensesOverAssets	0.62%
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	2.27%
Less: Fee Waiver and/or Expense Reimbursement	rr_FeeWaiverOrReimbursementOverAssets	(0.37%)	[1]
Net Annual Fund Operating Expenses	rr_NetExpensesOverAssets	1.90%
Fee Waiver or Reimbursement over Assets, Date of Termination	rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination	2013-10-27
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	293
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	674
Expense Example, with Redemption, 5 Years	rr_ExpenseExampleYear05	1,181
Expense Example, with Redemption, 10 Years	rr_ExpenseExampleYear10	2,577
Expense Example, No Redemption, 1 Year	rr_ExpenseExampleNoRedemptionYear01	193
Expense Example, No Redemption, 3 Years	rr_ExpenseExampleNoRedemptionYear03	674
Expense Example, No Redemption, 5 Years	rr_ExpenseExampleNoRedemptionYear05	1,181
Expense Example, No Redemption, 10 Years	rr_ExpenseExampleNoRedemptionYear10	2,577
Label	rr_AverageAnnualReturnLabel	Return Before Taxes
1 Year	rr_AverageAnnualReturnYear01	(2.30%)
Since Inception	rr_AverageAnnualReturnSinceInception
Average Annual Returns, Since Inception Secondary	ck0001027596_AverageAnnualReturnSinceInceptionSecondary	13.45%
Average Annual Returns, Inception Date Secondary	ck0001027596_AverageAnnualReturnInceptionDateSecondary	Jul. 01, 2009

[1] Davidson Investment Advisors, Inc. (the "Advisor") has contractually agreed to waive all or a portion of its management fees and pay expenses of the Multi-Cap Fund to ensure that Net Annual Fund Operating Expenses (excluding acquired fund fees and expenses ("AFFE"), interest, taxes and extraordinary expenses) do not exceed 1.15% of average daily net assets of the Multi-Cap Fund's Class A shares and 1.90% of average daily net assets of the Multi-Cap Fund's Class C shares (the "Expense Caps"). The Expense Caps will remain in effect through at least October 27, 2013, and may be terminated only by the Trust's Board of Trustees (the "Board"). The Advisor may request recoupment of previously waived fees and paid expenses from the Multi-Cap Fund for three years from the date they were waived or paid, subject to the Expense Caps.