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Label Element Value
Cove Street Capital Small Cap Value Fund  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Cove Street Capital Small Cap Value Fund
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The Cove Street Capital Small Cap Value Fund (the “Fund”) seeks capital appreciation.
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 tables and examples 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)
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 the 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 70% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 70.00%
Expense Exchange Traded Fund Commissions [Text] rr_ExpenseExchangeTradedFundCommissions You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and examples below.
Expenses Not Correlated to Ratio Due to Acquired Fund Fees [Text] rr_ExpensesNotCorrelatedToRatioDueToAcquiredFundFees The Total Annual Fund Operating Expenses do not correlate to the ratio of expenses to average net assets before expense waiver/recoupment included in the Financial Highlights section of the Fund's Statutory Prospectus, which reflects the operating expenses of the Fund and does 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 costs 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.
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption Although your actual costs may be higher or lower, based on these assumptions, your costs would be:
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock Under normal market conditions, the Fund invests at least 80% of its net assets (plus any borrowings for investment purposes) in a limited number of equity securities of small capitalization companies. The equity securities in which the Fund invests include common stocks, preferred stocks, and real estate investment trusts (“REITs”). The Fund considers a company to be a small-cap company if it has a market capitalization, at the time of purchase, in the range of $50 million to $5 billion. Although the Fund will invest primarily in the equity securities of U.S. companies, the Fund may also invest up to 20% of its assets in the securities of foreign companies, including common and preferred stocks. From time to time, the Fund may focus its investments in securities of companies in the same economic sector. The Fund’s investment strategy involves a value-oriented focus on preservation of capital over the long term using a “bottom-up” approach. The Fund may show increased portfolio turnover in a given year in order to reflect tax strategies that reduce its realized gains and losses for the benefit of the shareholders.
Risk [Heading] rr_RiskHeading Principal Risks
Risk Narrative [Text Block] rr_RiskNarrativeTextBlock
As with any mutual fund, there are risks to investing. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation ("FDIC") or any other governmental agency. In addition to possibly not achieving your investment goals, you could lose all or a portion of your investment in the Fund over short or even long periods of time. The principal risks of investing in the Fund are:
General Market Risk. The Fund’s net asset value and investment return will fluctuate based upon changes in the value of its portfolio securities. Certain securities selected for the Fund’s portfolio may be worth less than the price originally paid for them, or less than they were worth at an earlier time.
Management Risk. The Fund may not meet its investment objective or may underperform the market or other mutual funds with similar strategies if Cove Street Capital, LLC (“Cove Street” or “Adviser”) cannot successfully implement the Fund’s investment strategies.
Equity Securities Risk. The equity securities held in the Fund’s portfolio may experience sudden, unpredictable drops in value or long periods of decline in value. This may occur because of factors that affect securities markets generally or factors affecting specific industries, sectors, geographic markets, or companies in which the Fund invests.
Sector Emphasis Risk. The securities of companies in the same or related businesses, if comprising a significant portion of the Fund’s portfolio, may in some circumstances react negatively to market conditions, interest rates and economic, regulatory or financial developments and adversely affect the value of the portfolio.
Small-Cap Companies Risk. Investing in securities of small-sized companies may involve greater price volatility and less liquidity than investing in larger and more established companies. The Fund may hold a significant percentage of a company’s outstanding shares and may have to sell them at a discount from quoted prices.
Value-Style Investing Risk. The Fund’s value investments are subject to the risk that their intrinsic values may not be recognized by the broad market or that their prices may decline.
Foreign Securities Risk. Investments in securities issued by foreign companies involves risks not generally associated with investments in the securities of U.S. companies, including risks relating to political, social, and economic developments abroad and differences between U.S. and foreign regulatory and tax requirements and market practices, including fluctuations in foreign currencies. There may be less information publicly available about foreign companies than about a U.S. company, and many foreign companies are not subject to accounting, auditing, and financial reporting standards, regulatory framework and practices comparable to those in the U.S.
Concentration Risk. The Fund may have a relatively high concentration of assets in a single or small number of issuers, which may reduce the Fund’s diversification and result in increased volatility.
REIT Risk.  The real estate industry has been subject to substantial fluctuations and declines on a local, regional and national basis in the past and may continue to be in the future.  Also, the value of a REIT can be hurt by economic downturns or by changes in real estate values, rents, property taxes, interest rates, tax treatment, regulations, or the legal structure of a real estate investment trust.
Epidemic Risk. Widespread disease, including pandemics and epidemics have been and can be highly disruptive to economies and markets, adversely impacting individual companies, sectors, industries, markets, currencies, interest and inflation rates, credit ratings, investor sentiment, and other factors affecting the value of the Fund’s investments. Given the increasing interdependence among global economies and markets, conditions in one country, market, or region are increasingly likely to adversely affect markets, issuers, and/or foreign exchange rates in other countries, including the U.S. These disruptions could prevent the Fund from executing advantageous investment decisions in a timely manner and negatively impact the Fund’s ability to achieve its investment objectives. Any such event(s) could have a significant adverse impact on the value and risk profile of the Fund.
Risk Lose Money [Text] rr_RiskLoseMoney In addition to possibly not achieving your investment goals, you could lose all or a portion of your investment in the Fund over short or even long periods of time.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation ("FDIC") or any other governmental agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock The accompanying bar chart and table provide some indication of the risks of investing in the Fund by showing how the Fund’s total return has varied from year-to-year. Below the bar chart are the Fund’s highest and lowest quarterly returns during the period shown in the bar chart. The performance table that follows shows the Fund’s average annual total returns over time compared with broad-based securities market indices. Past performance (before and after taxes) will not necessarily continue in the future. Updated performance information is available at www.covestreetfunds.com or by calling (866) 497-0097.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The accompanying bar chart and table provide some indication of the risks of investing in the Fund by showing how the Fund’s total return has varied from year-to-year.
Performance Availability Phone [Text] rr_PerformanceAvailabilityPhone (866) 497-0097
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.covestreetfunds.com
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) will not necessarily continue in the future.
Bar Chart [Heading] rr_BarChartHeading Calendar Year Total Returns as of December 31:
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
Best QuarterWorst Quarter
Q4 202024.52%Q1 2020-39.81%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Best Quarter
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Dec. 31, 2020
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 24.52%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Worst Quarter
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Mar. 31, 2020
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (39.81%)
Performance Table Heading rr_PerformanceTableHeading Average Annual Total Returns for the periods ended December 31, 2020(1)
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 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 your situation and may differ from those shown. In certain cases, the figure representing Return After Taxes on Distributions and Sale of Fund Shares may be higher than the other return figures for the same period. A higher after-tax return results when a capital loss occurs upon redemption and provides an assumed tax deduction that benefits the investor. Furthermore, the after-tax returns shown are not relevant to those who hold their shares through tax-advantaged arrangements such as 401(k) plans or individual retirement accounts (“IRAs”).
Performance Table Closing [Text Block] rr_PerformanceTableClosingTextBlock After tax returns are 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 your situation and may differ from those shown. In certain cases, the figure representing Return After Taxes on Distributions and Sale of Fund Shares may be higher than the other return figures for the same period. A higher after-tax return results when a capital loss occurs upon redemption and provides an assumed tax deduction that benefits the investor. Furthermore, the after-tax returns shown are not relevant to those who hold their shares through tax-advantaged arrangements such as 401(k) plans or individual retirement accounts (“IRAs”).
Cove Street Capital Small Cap Value Fund | Russell 2000® Index (reflects no deductions for fees, expenses or taxes)  
Prospectus [Line Items] rr_ProspectusLineItems  
Label rr_AverageAnnualReturnLabel Russell 2000® Index (reflects no deduction for fees, expenses or taxes)
1 Year rr_AverageAnnualReturnYear01 19.96%
5 Years rr_AverageAnnualReturnYear05 13.26%
10 Years rr_AverageAnnualReturnYear10 11.20%
Since Inception rr_AverageAnnualReturnSinceInception 9.35%
Inception Date rr_AverageAnnualReturnInceptionDate Sep. 30, 1998
Cove Street Capital Small Cap Value Fund | Russell 2000® Value Index (reflects no deduction for fees, expenses or taxes)  
Prospectus [Line Items] rr_ProspectusLineItems  
Label rr_AverageAnnualReturnLabel Russell 2000® Value Index (reflects no deduction for fees, expenses or taxes)
1 Year rr_AverageAnnualReturnYear01 4.63% [1]
5 Years rr_AverageAnnualReturnYear05 9.65% [1]
10 Years rr_AverageAnnualReturnYear10 8.66% [1]
Since Inception rr_AverageAnnualReturnSinceInception 8.99% [1]
Inception Date rr_AverageAnnualReturnInceptionDate Sep. 30, 1998
Cove Street Capital Small Cap Value Fund | Institutional Class Shares  
Prospectus [Line Items] rr_ProspectusLineItems  
Trading Symbol dei_TradingSymbol CSCAX
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Redemption Fee (as a percentage of Amount Redeemed) rr_RedemptionFeeOverRedemption (2.00%)
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.85%
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.33%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.01% [2]
Expenses (as a percentage of Assets) rr_ExpensesOverAssets 1.19% [2]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 121
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 378
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 654
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 1,443
Annual Return 2011 rr_AnnualReturn2011 3.85%
Annual Return 2012 rr_AnnualReturn2012 27.09%
Annual Return 2013 rr_AnnualReturn2013 35.63%
Annual Return 2014 rr_AnnualReturn2014 0.45%
Annual Return 2015 rr_AnnualReturn2015 (3.56%)
Annual Return 2016 rr_AnnualReturn2016 16.24%
Annual Return 2017 rr_AnnualReturn2017 5.74%
Annual Return 2018 rr_AnnualReturn2018 (12.30%)
Annual Return 2019 rr_AnnualReturn2019 23.35%
Annual Return 2020 rr_AnnualReturn2020 (8.62%)
Label rr_AverageAnnualReturnLabel Return Before Taxes
1 Year rr_AverageAnnualReturnYear01 (8.62%) [1]
5 Years rr_AverageAnnualReturnYear05 3.97% [1]
10 Years rr_AverageAnnualReturnYear10 7.74% [1]
Since Inception rr_AverageAnnualReturnSinceInception 9.10% [1]
Inception Date rr_AverageAnnualReturnInceptionDate Sep. 30, 1998
Cove Street Capital Small Cap Value Fund | Institutional Class Shares | After Taxes on Distributions  
Prospectus [Line Items] rr_ProspectusLineItems  
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions
1 Year rr_AverageAnnualReturnYear01 (8.89%) [1]
5 Years rr_AverageAnnualReturnYear05 3.44% [1]
10 Years rr_AverageAnnualReturnYear10 6.79% [1]
Since Inception rr_AverageAnnualReturnSinceInception 8.25% [1]
Cove Street Capital Small Cap Value Fund | Institutional Class Shares | 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 (4.91%) [1]
5 Years rr_AverageAnnualReturnYear05 3.00% [1]
10 Years rr_AverageAnnualReturnYear10 6.09% [1]
Since Inception rr_AverageAnnualReturnSinceInception 7.66% [1]
[1] The CSC Small Cap Value Fund, a series of CNI Charter Funds, (the “Predecessor Fund”) transferred its assets into the Fund in a tax-free reorganization on January 23, 2012. Performance information shown includes the performance of the Predecessor Fund for periods prior to January 23, 2012.
[2] The Total Annual Fund Operating Expenses do not correlate to the ratio of expenses to average net assets before expense waiver/recoupment included in the Financial Highlights section of the Fund's Statutory Prospectus, which reflects the operating expenses of the Fund and does not include Acquired Fund Fees and Expenses.