| Label | Element | Value | ||||
|---|---|---|---|---|---|---|
| PIA Short-Term Securities Fund | ||||||
| Prospectus [Line Items] | rr_ProspectusLineItems | |||||
| Risk/Return [Heading] | rr_RiskReturnHeading | PIA Short-Term Securities Fund | ||||
| Objective [Heading] | rr_ObjectiveHeading | Investment Objective | ||||
| Objective, Primary [Text Block] | rr_ObjectivePrimaryTextBlock | The Fund’s investment objective is to seek a high level of current income, consistent with low volatility of principal through investing in short-term investment grade debt securities. | ||||
| Expense [Heading] | rr_ExpenseHeading | Fees and Expenses of the Fund | ||||
| Expense Narrative [Text Block] | rr_ExpenseNarrativeTextBlock | This table describes the fees and expenses that you may pay if you buy, hold, and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table and example below. | ||||
| 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) | ||||
| Fee Waiver or Reimbursement over Assets, Date of Termination | rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination | March 31, 2026 | ||||
| Portfolio Turnover [Heading] | rr_PortfolioTurnoverHeading | Portfolio Turnover | ||||
| Portfolio Turnover [Text Block] | rr_PortfolioTurnoverTextBlock | The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the Example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 64% of the average value of its portfolio.
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| Portfolio Turnover, Rate | rr_PortfolioTurnoverRate | 64.00% | ||||
| 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 Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same (taking into account the Expense Cap only in the first year). You may be required to pay brokerage commissions on your purchases and sales of Advisor Class shares of the Fund, which are not reflected in this table. | ||||
| Expense Example by, Year, Caption [Text] | rr_ExpenseExampleByYearCaption | Although your actual costs may be higher or lower, based on these assumptions, your costs would be: | ||||
| Strategy [Heading] | rr_StrategyHeading | Principal Investment Strategies of the Fund | ||||
| Strategy Narrative [Text Block] | rr_StrategyNarrativeTextBlock | The Fund is a diversified investment company that normally invests at least 80% of its net assets in short-term securities having a duration of less than three years. Under normal market conditions, the Fund purchases securities rated BBB- and/or Baa3 or better by a Nationally Recognized Statistical Rating Organization (“NRSRO”). The Fund primarily invests in securities issued or guaranteed by the U.S. government and its agencies (including U.S. Treasury Notes), investment grade mortgage-backed securities (including commercial mortgage-backed securities and residential mortgage-backed securities), and investment grade debt securities (including corporate debt securities, asset-backed securities, and collateralized mortgage obligations). The Fund may also invest in Rule 144A securities. The Fund may invest up to 10% of its net assets in other investment companies (mutual funds and exchange-traded funds (“ETFs”)), including in any mutual fund advised by the Adviser (a “PIA Fund”), provided that investment in an investment company that predominantly invests in high yield (‘junk bond”) securities will count towards the Fund’s limitation of no more than 5% of the Fund’s net assets invested in high yield securities. To the extent that the Fund invests in a PIA Fund, the Adviser will waive any management fee charged by the PIA Fund. The Fund may also invest in ETFs that provide exposure to AAA-rated collateralized loan obligations (CLOs). Duration is a measure of a debt security’s price sensitivity. Higher duration indicates bonds that are more sensitive to interest rate changes. Bonds with shorter duration have lower risk associated with interest rates. Duration takes into account a debt security’s cash flows over time including the possibility that a debt security might be prepaid by the issuer or redeemed by the holder prior to its stated maturity date. In contrast, maturity measures only the time until final payment is due. The weighted average duration of the Fund portfolio will generally range from six months on the short end to three years on the long end. In selecting investments for the Fund, the Adviser primarily will consider credit quality, duration and yield.
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| Strategy Portfolio Concentration [Text] | rr_StrategyPortfolioConcentration | The Fund is a diversified investment company that normally invests at least 80% of its net assets in short-term securities having a duration of less than three years. | ||||
| Risk [Heading] | rr_RiskHeading | Principal Investment Risks | ||||
| Bar Chart and Performance Table [Heading] | rr_BarChartAndPerformanceTableHeading | Performance | ||||
| Performance Narrative [Text Block] | rr_PerformanceNarrativeTextBlock | The following performance information provides some indication of the risks of investing in the Fund. The bar chart shows the annual returns for the Fund from year to year. The table shows how the Fund’s average annual returns for the 1-year, 5-years and 10-years periods compare with those of a broad measure of market performance and a secondary benchmark that is more representative of the Fund’s investment strategy. 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.pacificincome.com/mutual-funds or by calling the Fund toll-free at 1-800-251-1970.
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| Performance Information Illustrates Variability of Returns [Text] | rr_PerformanceInformationIllustratesVariabilityOfReturns | The following performance information provides some indication of the risks of investing in the Fund. | ||||
| Performance Availability Phone [Text] | rr_PerformanceAvailabilityPhone | 1-800-251-1970 | ||||
| Performance Availability Website Address [Text] | rr_PerformanceAvailabilityWebSiteAddress | www.pacificincome.com/mutual-funds | ||||
| 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 | Calendar Year Total Returns as of December 31 | ||||
| Bar Chart Closing [Text Block] | rr_BarChartClosingTextBlock | During the period shown on the bar chart, the Fund’s highest total return for a quarter was 2.43% (quarter ended September 30, 2024) and the lowest total return for a quarter was -1.40% (quarter ended March 31, 2022).
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| Highest Quarterly Return, Label | rr_HighestQuarterlyReturnLabel | highest total return | ||||
| Highest Quarterly Return, Date | rr_BarChartHighestQuarterlyReturnDate | Sep. 30, 2024 | ||||
| Highest Quarterly Return | rr_BarChartHighestQuarterlyReturn | 2.43% | ||||
| Lowest Quarterly Return, Label | rr_LowestQuarterlyReturnLabel | lowest total return | ||||
| Lowest Quarterly Return, Date | rr_BarChartLowestQuarterlyReturnDate | Mar. 31, 2022 | ||||
| Lowest Quarterly Return | rr_BarChartLowestQuarterlyReturn | (1.40%) | ||||
| Performance Table Heading | rr_PerformanceTableHeading | Average Annual Total Returns(for the periods ended December 31, 2024) | ||||
| 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 redemption and provides an assumed tax deduction that benefits the investor. | ||||
| Performance Table Footnotes | rr_PerformanceTableFootnotesTextBlock | In previous years, the Fund utilized the same benchmark “without transactions costs.” Going forward, the Fund will compare its returns to the index “with transactions costs.” Index returns include transactions costs, which may be higher or lower than the actual transaction costs incurred by the Fund. | ||||
| 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 redemption and provides an assumed tax deduction that benefits the investor.
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| PIA Short-Term Securities Fund | Risk Lose Money [Member] | ||||||
| Prospectus [Line Items] | rr_ProspectusLineItems | |||||
| Risk Narrative [Text Block] | rr_RiskTextBlock | Losing all or a portion of your investment is a risk of investing in the Fund. | ||||
| PIA Short-Term Securities Fund | General Market Risk Member | ||||||
| Prospectus [Line Items] | rr_ProspectusLineItems | |||||
| Risk Narrative [Text Block] | rr_RiskTextBlock | General Market Risk. Economies and financial markets throughout the world are becoming increasingly interconnected, which increases the likelihood that events or conditions in one country or region will adversely impact markets or issuers in other countries or regions. Securities in the Fund’s portfolio may underperform in comparison to securities in general financial markets, a particular financial market or other asset classes due to a number of factors, including: inflation (or expectations for inflation); deflation (or expectations for deflation); interest rates; market instability; financial system instability; debt crises and downgrades; embargoes; tariffs; sanctions and other trade barriers; regulatory events; other governmental trade or market control programs and related geopolitical events. In addition, the value of the Fund’s investments may be negatively affected by the occurrence of global events such as war, terrorism, environmental disasters, natural disasters or events, country instability, and infectious disease epidemics or pandemics. Conflict, loss of life and disaster connected to ongoing armed conflict between Ukraine and Russia in Europe and Israel and Hamas in the Middle East could have severe adverse effects on the region, including significant adverse effects on the regional or global economies and the markets for certain securities. The U.S. and the European Union imposed sanctions on certain Russian individuals and companies, including certain financial institutions, and have limited certain exports and imports to and from Russia. The war has contributed to recent market volatility and may continue to do so.
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| PIA Short-Term Securities Fund | U.S. Government Securities Risk Member | ||||||
| Prospectus [Line Items] | rr_ProspectusLineItems | |||||
| Risk Narrative [Text Block] | rr_RiskTextBlock | U.S. Government Securities Risk. Some U.S. government securities, such as Treasury Bills, notes, and bonds and mortgage-backed securities guaranteed by the Government National Mortgage Association (Ginnie Mae), are supported by the full faith and credit of the United States; others are supported by the right of the issuer to borrow from the U.S. Treasury; others are supported by the discretionary authority of the U.S. government to purchase the agency’s obligations; still others are supported only by the credit of the issuing agency, instrumentality, or enterprise. Although U.S. government-sponsored enterprises may be chartered or sponsored by Congress, they are not funded by Congressional appropriations, and their securities are not issued by the U.S. Treasury, their obligations are not supported by the full faith and credit of the U.S. government, and so investments in their securities or obligations issued by them involve greater risk than investments in other types of U.S. government securities. In addition, certain governmental entities have been subject to regulatory scrutiny regarding their accounting policies and practices and other concerns that may result in legislation, changes in regulatory oversight and/or other consequences that could adversely affect the credit quality, availability or investment character of securities issued or guaranteed by these entities. | ||||
| PIA Short-Term Securities Fund | Management Risk Member | ||||||
| Prospectus [Line Items] | rr_ProspectusLineItems | |||||
| Risk Narrative [Text Block] | rr_RiskTextBlock | Management Risk. The Fund is an actively managed portfolio. The Adviser’s management practices and investment strategies might not work to produce the desired results. | ||||
| PIA Short-Term Securities Fund | Counterparty Risk Member | ||||||
| Prospectus [Line Items] | rr_ProspectusLineItems | |||||
| Risk Narrative [Text Block] | rr_RiskTextBlock | Counterparty Risk. Fund transactions involving a counterparty are subject to the risk that the counterparty or a third party will not fulfill its obligation to the Fund. Counterparty risk may arise because of the counterparty’s financial condition (i.e., financial difficulties, bankruptcy, or insolvency), market activities and developments, or other reasons, whether foreseen or not. A counterparty’s inability to fulfill its obligation may result in significant financial loss to the Fund. | ||||
| PIA Short-Term Securities Fund | Interest Rate Risk Member | ||||||
| Prospectus [Line Items] | rr_ProspectusLineItems | |||||
| Risk Narrative [Text Block] | rr_RiskTextBlock | Interest Rate Risk. The value of the Fund’s investments in fixed-income securities will change based on changes in interest rates. If interest rates increase, the value of these investments generally declines. Securities with greater interest rate sensitivity and longer maturities generally are subject to greater fluctuations in value. | ||||
| PIA Short-Term Securities Fund | Credit Risk Member | ||||||
| Prospectus [Line Items] | rr_ProspectusLineItems | |||||
| Risk Narrative [Text Block] | rr_RiskTextBlock | Credit Risk. The issuers of the bonds and other debt securities held by the Fund may not be able to make interest or principal payments. | ||||
| PIA Short-Term Securities Fund | Prepayment Risk Member | ||||||
| Prospectus [Line Items] | rr_ProspectusLineItems | |||||
| Risk Narrative [Text Block] | rr_RiskTextBlock | Prepayment Risk. Issuers of securities held by the Fund may be able to prepay principal due on these securities, particularly during periods of declining interest rates. Securities subject to prepayment risk generally offer less potential for gains when interest rates decline, and may offer a greater potential for loss when interest rates rise. When debt obligations are prepaid or when securities are called, the Fund may have to reinvest in securities with a lower yield. Prepayment risk is a major risk of mortgage-backed securities. | ||||
| PIA Short-Term Securities Fund | Extension Risk Member | ||||||
| Prospectus [Line Items] | rr_ProspectusLineItems | |||||
| Risk Narrative [Text Block] | rr_RiskTextBlock | Extension Risk. An issuer may pay principal on an obligation held by the Fund (such as an asset-backed or mortgage-backed security) later than expected. This may happen during a period of rising interest rates. Under these circumstances, the value of the obligation will decrease. | ||||
| PIA Short-Term Securities Fund | Risks Associated With Asset-Backed Securities Risk Member | ||||||
| Prospectus [Line Items] | rr_ProspectusLineItems | |||||
| Risk Narrative [Text Block] | rr_RiskTextBlock | Risks Associated with Asset-Backed Securities. These include General Market Risk, Interest Rate Risk, Credit Risk, Prepayment Risk and Extension Risk (each described above). During periods of difficult or frozen credit markets, significant changes in interest rates, or deteriorating economic conditions, such securities may decline in value, face valuation difficulties, become more volatile and/or become illiquid. | ||||
| PIA Short-Term Securities Fund | Risks Associated With CLOs Risk Member | ||||||
| Prospectus [Line Items] | rr_ProspectusLineItems | |||||
| Risk Narrative [Text Block] | rr_RiskTextBlock | Risks Associated with CLOs. The risks of investing in CLOs include both the economic risks of the underlying loans combined with the risks associated with the CLO structure governing the priority of payments. The degree of such risk will generally correspond to the specific tranche in which the Fund is invested. The Fund intends to invest primarily in AAA-rated tranches; however, this rating does not constitute a guarantee, may be downgraded, and in stressed market environments it is possible that even senior CLO tranches could experience losses due to actual defaults, increased sensitivity to defaults due to collateral default and significant losses experienced by subordinated/equity tranches, market anticipation of defaults, as well as negative market sentiment with respect to CLO securities as an asset class. The Fund’s portfolio management may not be able to accurately predict how specific CLOs or the portfolio of underlying loans for such CLOs will react to changes or stresses in the market, including changes in interest rates. The most common risks associated with investing in CLOs are liquidity risk, interest rate risk, credit risk, prepayment risk, and the risk of default of the underlying asset, among others. | ||||
| PIA Short-Term Securities Fund | Risks Associated With Mortgage-Backed Securities Risk Member | ||||||
| Prospectus [Line Items] | rr_ProspectusLineItems | |||||
| Risk Narrative [Text Block] | rr_RiskTextBlock | Risks Associated with Mortgage-Backed Securities. These include General Market Risk, Interest Rate Risk, Credit Risk, Prepayment Risk and Extension Risk (each described above) as well as the risk that the structure of certain mortgage-backed securities may make their reaction to interest rates and other factors difficult to predict, making their prices very volatile. | ||||
| PIA Short-Term Securities Fund | Liquidity Risk Member | ||||||
| Prospectus [Line Items] | rr_ProspectusLineItems | |||||
| Risk Narrative [Text Block] | rr_RiskTextBlock | Liquidity Risk. Reduced liquidity in the bond markets can result from a number of events, such as limited trading activity, reductions in bond inventory, and rapid or unexpected changes in interest rates. Less liquid markets could lead to greater price volatility and limit the Fund’s ability to sell a holding at a suitable price. | ||||
| PIA Short-Term Securities Fund | Rule 144A Securities Risk Member | ||||||
| Prospectus [Line Items] | rr_ProspectusLineItems | |||||
| Risk Narrative [Text Block] | rr_RiskTextBlock | Rule 144A Securities Risk. The market for Rule 144A securities typically is less active than the market for publicly-traded securities. Rule 144A securities carry the risk that the liquidity of these securities may become impaired, making it more difficult for the Fund to sell these securities. | ||||
| PIA Short-Term Securities Fund | Adjustable Rate And Floating Rate Securities Risks Member | ||||||
| Prospectus [Line Items] | rr_ProspectusLineItems | |||||
| Risk Narrative [Text Block] | rr_RiskTextBlock | Adjustable Rate and Floating Rate Securities Risks. Although the fluctuations in value of adjustable and floating rate instruments should be minimized as a result of changes in market interest rates compared to fixed-rate debt instruments, because such floating rates only reset periodically, changes in prevailing interest rates can still be expected to cause some fluctuation in the value of the Fund. | ||||
| PIA Short-Term Securities Fund | Risks Associated With Inflation And Deflation Risk Member | ||||||
| Prospectus [Line Items] | rr_ProspectusLineItems | |||||
| Risk Narrative [Text Block] | rr_RiskTextBlock | Risks Associated with Inflation and Deflation. Inflation risk is the risk that increasing prices throughout the economy may erode the purchasing power of an investment over time. Deflation risk is the risk that prices throughout the economy decline over time – the opposite of inflation. | ||||
| PIA Short-Term Securities Fund | ETF And Mutual Fund Risk Member | ||||||
| Prospectus [Line Items] | rr_ProspectusLineItems | |||||
| Risk Narrative [Text Block] | rr_RiskTextBlock | ETF and Mutual Fund Risk. When the Fund invests in an ETF or mutual fund, it will bear additional expenses based on its pro rata share of the ETF’s or mutual fund’s operating expenses, including the potential duplication of management fees. The risk of owning an ETF or mutual fund generally reflects the risks of owning the underlying securities that the ETF or mutual fund holds. The Fund also will incur brokerage costs when it purchases ETFs. | ||||
| PIA Short-Term Securities Fund | High Yield Securities Risk Member | ||||||
| Prospectus [Line Items] | rr_ProspectusLineItems | |||||
| Risk Narrative [Text Block] | rr_RiskTextBlock | High Yield Securities Risk. Securities with ratings lower than BBB- or Baa3 are known as “high yield” securities (commonly known as “junk bonds”). High yield securities typically carry higher coupon rates than investment grade securities, but also are considered as speculative and may be subject to greater market price fluctuations, less liquidity and greater risk of loss of income or principal including greater possibility of default and bankruptcy of the issuer of such instruments than more highly rated bonds and loans. | ||||
| PIA Short-Term Securities Fund | Bloomberg U.S. Aggregate Bond Index (reflects no deduction for fees, expenses or taxes) | ||||||
| Prospectus [Line Items] | rr_ProspectusLineItems | |||||
| Index No Deduction for Fees, Expenses, Taxes [Text] | rr_IndexNoDeductionForFeesExpensesTaxes | (reflects no deduction for fees, expenses or taxes) | [1] | |||
| Label | rr_AverageAnnualReturnLabel | Bloomberg U.S. Aggregate Bond Index(reflects no deduction for fees, expenses or taxes) | [1] | |||
| 1 Year | rr_AverageAnnualReturnYear01 | 1.25% | [1] | |||
| 5 Years | rr_AverageAnnualReturnYear05 | (0.33%) | [1] | |||
| 10 Years | rr_AverageAnnualReturnYear10 | 1.35% | [1] | |||
| PIA Short-Term Securities Fund | ICE BofA 1-Year U.S. Treasury Note Index (reflects no deduction for fees, expenses or taxes) | ||||||
| Prospectus [Line Items] | rr_ProspectusLineItems | |||||
| Index No Deduction for Fees, Expenses, Taxes [Text] | rr_IndexNoDeductionForFeesExpensesTaxes | (reflects no deduction for fees, expenses or taxes) | ||||
| Label | rr_AverageAnnualReturnLabel | ICE BofA 1-Year U.S. Treasury Note Index (1)(reflects no deduction for fees, expenses or taxes) | [1] | |||
| 1 Year | rr_AverageAnnualReturnYear01 | 4.75% | [1] | |||
| 5 Years | rr_AverageAnnualReturnYear05 | 2.01% | [1] | |||
| 10 Years | rr_AverageAnnualReturnYear10 | 1.63% | [1] | |||
| PIA Short-Term Securities Fund | Advisor Class | ||||||
| Prospectus [Line Items] | rr_ProspectusLineItems | |||||
| Trading Symbol | dei_TradingSymbol | PIASX | ||||
| Shareholder Fee, Other | rr_ShareholderFeeOther | none | ||||
| Management Fees (as a percentage of Assets) | rr_ManagementFeesOverAssets | 0.20% | ||||
| Other Expenses (as a percentage of Assets): | rr_OtherExpensesOverAssets | 0.20% | ||||
| Expenses (as a percentage of Assets) | rr_ExpensesOverAssets | 0.40% | ||||
| Fee Waiver or Reimbursement | rr_FeeWaiverOrReimbursementOverAssets | (0.01%) | [2] | |||
| Net Expenses (as a percentage of Assets) | rr_NetExpensesOverAssets | 0.39% | ||||
| Expense Example, with Redemption, 1 Year | rr_ExpenseExampleYear01 | $ 40 | ||||
| Expense Example, with Redemption, 3 Years | rr_ExpenseExampleYear03 | 127 | ||||
| Expense Example, with Redemption, 5 Years | rr_ExpenseExampleYear05 | 223 | ||||
| Expense Example, with Redemption, 10 Years | rr_ExpenseExampleYear10 | $ 504 | ||||
| Annual Return 2015 | rr_AnnualReturn2015 | 0.28% | ||||
| Annual Return 2016 | rr_AnnualReturn2016 | 1.46% | ||||
| Annual Return 2017 | rr_AnnualReturn2017 | 0.95% | ||||
| Annual Return 2018 | rr_AnnualReturn2018 | 1.19% | ||||
| Annual Return 2019 | rr_AnnualReturn2019 | 3.16% | ||||
| Annual Return 2020 | rr_AnnualReturn2020 | 1.85% | ||||
| Annual Return 2021 | rr_AnnualReturn2021 | (0.02%) | ||||
| Annual Return 2022 | rr_AnnualReturn2022 | (1.01%) | ||||
| Annual Return 2023 | rr_AnnualReturn2023 | 5.62% | ||||
| Annual Return 2024 | rr_AnnualReturn2024 | 5.22% | ||||
| Label | rr_AverageAnnualReturnLabel | Return Before Taxes | ||||
| 1 Year | rr_AverageAnnualReturnYear01 | 5.22% | ||||
| 5 Years | rr_AverageAnnualReturnYear05 | 2.30% | ||||
| 10 Years | rr_AverageAnnualReturnYear10 | 1.85% | ||||
| PIA Short-Term Securities Fund | Advisor Class | After Taxes on Distributions | ||||||
| Prospectus [Line Items] | rr_ProspectusLineItems | |||||
| Label | rr_AverageAnnualReturnLabel | Return After Taxes on Distributions | ||||
| 1 Year | rr_AverageAnnualReturnYear01 | 3.23% | ||||
| 5 Years | rr_AverageAnnualReturnYear05 | 1.31% | ||||
| 10 Years | rr_AverageAnnualReturnYear10 | 1.08% | ||||
| PIA Short-Term Securities Fund | Advisor Class | After Taxes on Distributions and Sales | ||||||
| Prospectus [Line Items] | rr_ProspectusLineItems | |||||
| Label | rr_AverageAnnualReturnLabel | Return After Taxes on Distributions and Sale of Fund Shares | ||||
| 1 Year | rr_AverageAnnualReturnYear01 | 3.06% | ||||
| 5 Years | rr_AverageAnnualReturnYear05 | 1.33% | ||||
| 10 Years | rr_AverageAnnualReturnYear10 | 1.08% | ||||
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