v3.25.0.1
Label Element Value
The Kansas Tax-Free Intermediate Bond Fund  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading The Kansas Tax‑Free Intermediate Bond Fund – Summary
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock
The investment objective of the Fund is to seek current income exempt from federal and, to the extent possible, from Kansas income taxes, as is consistent with the preservation of capital.
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 the Example below. There is no sales charge imposed on purchases of shares.
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual Fund Operating Expenses
Fee Waiver or Reimbursement over Assets, Date of Termination rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination March 1, 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 28% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 28.00%
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 this Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in shares of 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 equal to the Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement in the first year and the Total Annual Fund Operating Expenses thereafter. 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
•  
Security Types: Under normal market conditions, the Fund invests at least 80% of its net assets plus any borrowings for investment purposes (measured at the time of purchase) in Kansas municipal bonds, the income from which, in the opinion of bond counsel, is exempt from regular federal income taxes, federal alternative minimum taxes and Kansas taxes. Alternatively, at least 80% of the Fund’s distributed income must be exempt from such taxes. In addition to obligations issued by the State of Kansas and its subdivisions, authorities, instrumentalities and agencies, the Fund may also invest in obligations issued by U.S. territories, commonwealths and possessions (such as Puerto Rico, the U.S. Virgin Islands and Guam) that pay interest that is exempt from federal and Kansas income tax. The Fund’s 80% investment strategy is fundamental–meaning that it can be changed only by the holders of a majority of the outstanding voting securities of the Fund.
•  
The Fund seeks to maximize the proportion of its dividends that are exempt from both federal and Kansas income tax.
•  
The Fund strives to minimize net realized capital gains.
•  
Credit Quality: Except as described below, the municipal securities in which the Fund invests will be rated investment grade (e.g., in the top four credit-rating categories) at the time of purchase by at least one nationally recognized statistical rating organization, or if unrated will be deemed by the Adviser to be of comparable quality to investment grade municipal securities. The Fund may invest up to 10% of its total assets in such unrated securities. The Fund may invest up to 5% of its total assets in high yield (non-investment grade) securities known as junk bonds. Subsequent to purchase, the Fund’s municipal securities may be downgraded below investment grade or may be deemed by the Adviser to be no longer comparable to investment grade securities. The Adviser will consider such an event in determining whether the Fund should continue to hold the security, except that the Fund may not hold more than 5% of its total assets in high yield (non-investment grade) securities.
•  
Maturity Distribution: The Fund actively manages maturities to take advantage of changes in interest rates. Under normal market conditions, the average weighted maturity of the Fund’s portfolio securities will be five to twelve years.
Risk [Heading] rr_RiskHeading Principal Risks
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Fund Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock
The bar chart and table below provide an indication of the risks of investing in the Fund by showing: (a) changes in the performance of the Fund’s shares from year to year; and (b) how the average annual total returns of the Fund’s shares compare to those of a broad-based securities market index and an additional index with characteristics relevant to the Fund. The Fund’s past performance, before and after taxes, is not necessarily an indication of how the Fund will perform in the future. More information about such prior performance is available under “More Information About Fees and Performance.” To obtain updated performance information, please visit the Fund’s website at www.commercefunds.com or by calling 1‑800‑995‑6365.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The bar chart and table below provide an indication of the risks of investing in the Fund by showing: (a) changes in the performance of the Fund’s shares from year to year; and (b) how the average annual total returns of the Fund’s shares compare to those of a broad-based securities market index and an additional index with characteristics relevant to the Fund.
Performance Additional Market Index [Text] rr_PerformanceAdditionalMarketIndex The Bloomberg 3-15 Year Blend Municipal Bond Index is an unmanaged index comprised of investment-grade municipal securities ranging from 2 to 17 years in maturity.
Performance Availability Phone [Text] rr_PerformanceAvailabilityPhone 1‑800‑995‑6365
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.commercefunds.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 Year-by-Year Total Returns as of 12/31 Each Year TOTAL RETURNCALENDAR YEAR
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock Best Quarter* Q4 ‘23 7.01% Worst Quarter* Q1 ‘22 –5.10% * Please note that “Best Quarter” and “Worst Quarter” figures are applicable only to the time period covered by the bar chart.
Performance Table Heading rr_PerformanceTableHeading Average Annual Total ReturnsFor the periods endedDecember 31, 2024
Performance Table Market Index Changed rr_PerformanceTableMarketIndexChanged In connection with a new regulatory requirement, effective October 31, 2024, the Fund changed its broad based index to the Bloomberg Municipal Bond Index.
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes The Index figures do not reflect any deduction for fees, taxes or expenses.
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns below 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-taxreturns depend on an investor’s tax situation and may differ from those shown. After-tax returns shown are not relevant to investors who hold Fund shares through tax-advantaged arrangements such as a 401(k) plan or individual retirement account (IRA).
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock
After-tax returns below 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 an investor’s tax situation and may differ from those shown. After-tax returns shown are not relevant to investors who hold Fund shares through tax-advantaged arrangements such as a 401(k) plan or individual retirement account (IRA).
The Kansas Tax-Free Intermediate Bond Fund | Risk Lose Money [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock As with any mutual fund, it is possible to losemoney on an investment in the Fund.
The Kansas Tax-Free Intermediate Bond Fund | Risk Not Insured Depository Institution [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock An investment in the Fund is not a bank depositand is not insured or guaranteed by the Federal Deposit Insurance Corporation or any government agency.
The Kansas Tax-Free Intermediate Bond Fund | Market Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock
Market Risk: Certain securities and other investments held by the Fund may experience increased volatility, illiquidity, or other potentially adverse effects in response to changing market conditions, inflation, changes in interest rates, lack of liquidity in the bond or equity markets, volatility in the equity markets, market disruptions caused by local or regional events such as financial institution failures, war, acts of terrorism, the spread of infectious illness (including epidemics and pandemics) or other public health issues, recessions or other events or adverse investor sentiment.
The Kansas Tax-Free Intermediate Bond Fund | Investment Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock
Investment Risk: The value of your investment in this Fund may fluctuate, which means that you could lose money.
The Kansas Tax-Free Intermediate Bond Fund | Management Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock
Management Risk: A strategy used by the Adviser could fail to produce the intended results.
The Kansas Tax-Free Intermediate Bond Fund | Large Shareholder Purchase and Redemption Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock
Large Shareholder Purchase and Redemption Risk: The Fund may experience adverse effects when certain large shareholders purchase or redeem large amounts of shares of the Fund. Such large shareholder redemptions may cause the Fund to sell its securities at times when it would not otherwise do so, which may negatively impact the Fund’s net asset value and liquidity. Similarly, large purchases of the Fund’s shares may also adversely affect the Fund’s performance to the extent that the Fund is delayed in investing new cash and is required to maintain a larger cash position than it ordinarily would. In addition, a large redemption could result in the Fund’s current expenses being allocated over a smaller asset base, leading to an increase in the Fund’s expense ratio.
The Kansas Tax-Free Intermediate Bond Fund | Cybersecurity Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock
Cybersecurity Risk: Cybersecurity breaches may allow an unauthorized party to gain access to Fund assets, customer data, or proprietary information, or cause the Fund and/or its service providers to suffer data corruption or lose operational functionality.
The Kansas Tax-Free Intermediate Bond Fund | Interest Rate Risks [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock
Interest Rate Risk: Interest rate risk is the risk that the value of the Fund’s portfolio will decline when interest rates rise. The magnitude of this decline will often be greater for longer-term, fixed-income securities than shorter-term securities. Changing interest rates may have unpredictable effects on the markets and on the Fund’s investments. Declines in interest rate levels could cause the Fund’s earnings to fall below the Fund’s expense ratio, resulting in a negative yield and a decline in the Fund’s share price. The magnitude of these fluctuations in the market price of bonds and other fixed-income securities is generally
greater for those securities with longer maturities. Fluctuations in the market price of the Fund’s investments will not affect interest income derived from instruments already owned by the Fund, but will be reflected in the Fund’s net asset value. The Fund may lose money if short-term or long-term interest rates rise sharply in a manner not anticipated by Fund management. A general rise in interest rates has the potential to cause investors to move out of fixed-income securities on a large scale, which may increase redemptions from funds that hold large amounts of fixed-income securities. Heavy redemptions could cause the Fund to sell assets at inopportune times or at a loss or depressed value and could hurt the Fund’s performance.
The Kansas Tax-Free Intermediate Bond Fund | Income Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock
Income Risk: The Fund’s ability to distribute income to shareholders depends on the yield available from the Fund’s investments. The Fund’s portfolio income may decline when market interest rates fall.
The Kansas Tax-Free Intermediate Bond Fund | Credit Risks [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock
Credit Risk: Credit risk is the risk that an issuer of a municipal bond may be unable or unwilling to make interest and principal payments when due and the related risk that the value of a bond may decline because of concerns about the issuer’s ability or willingness to make such payments. If a bond’s insurer or provider of other credit enhancement fails to fulfill its obligations or loses its credit rating, the value of the bond could drop. This may impair the Fund’s liquidity or cause a deterioration in the Fund’s net asset value. In addition, the Fund may incur expenses in an effort to protect the Fund’s interests or enforce its rights against an issuer, guarantor or counterparty or may be hindered or delayed in exercising these rights.
The Kansas Tax-Free Intermediate Bond Fund | Call Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock
Call Risk: An issuer may exercise its right to pay principal on an obligation held by the Fund earlier than expected. Under these circumstances, the Fund may be unable to recoup all of its initial investment and may also suffer from having to reinvest in lower yielding securities, securities with greater credit risks or securities with other, less favorable features.
The Kansas Tax-Free Intermediate Bond Fund | Maturity Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock
Maturity Risk: The Fund will not necessarily hold its securities to maturity, which could result in loss of principal.
The Kansas Tax-Free Intermediate Bond Fund | High Yield Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock
High Yield Risk: High yield securities are subject to greater levels of credit and liquidity risk. High yield securities are considered speculative with respect to an issuer’s ability to make principal and interest payments and may be more volatile than higher-rated securities of similar maturity.
The Kansas Tax-Free Intermediate Bond Fund | Liquidity Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock
Liquidity Risk: The Fund may not be able to pay redemption proceeds within the time periods described in this Prospectus because of unusual market conditions, an unusually high number of redemption requests or other reasons. Liquidity risk may result from the lack of an active market or reduced number and capacity of traditional market participants to make a market in fixed income securities, and may be magnified in a rising interest rate environment or other circumstances where investor redemptions from fixed income mutual funds may be higher than normal, causing increased supply in the market due to selling activity. Certain portfolio securities may be less liquid than others, which may make them difficult or impossible to sell at an advantageous time or price.
The Kansas Tax-Free Intermediate Bond Fund | Municipal Bond Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock
Municipal Bond Risk: Municipal securities prices can be significantly affected by political or public health changes as well as uncertainties in the municipal market related to taxation, legislative changes or the rights of municipal security holders. In addition, changes in the supply of and demand for Kansas municipal obligations could cause greater volatility in the value of the Fund’s shares. The actual payment of principal and interest on the Kansas bonds is dependent on the Kansas legislature allotting money each fiscal year for payment. If economic conditions in Kansas decline, the payment of principal and interest on Kansas bonds could be adversely affected. Municipal lease obligations and certificates of participation are subject to the added risk that the governmental lessee will fail to appropriate funds to enable it to meet its payment obligations under the lease. While interest earned on municipal securities is generally not subject to federal tax, any interest earned on taxable municipal securities is fully taxable at the federal level and may be subject to tax at the state level.
The Kansas Tax-Free Intermediate Bond Fund | Tax Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock
Tax Risk: Income from municipal bonds held by the Fund could be declared taxable because of unfavorable changes in tax laws, adverse interpretations by the Internal Revenue Service or state tax authorities, or noncompliant conduct of a bond issuer. In addition, a portion of the Fund’s otherwise exempt-interest dividends may be taxable to those shareholders subject to the federal alternative minimum tax.
The Kansas Tax-Free Intermediate Bond Fund | State Specific Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock
State-Specific Risk: Because the Fund primarily purchases municipal bonds from Kansas, the Fund is more susceptible to adverse economic, political or regulatory changes affecting municipal bond issuers in that state. While Kansas’s agricultural sector is a key component of the state’s economy, other major sectors include trade, services, biosciences, renewable energy and manufacturing, including transportation equipment manufacturing. Downturns in these sectors could therefore have a negative effect on the economy of Kansas or the economies of any of its political subdivisions and the ability of these issuers to repay their obligations with respect to municipal bonds.
The Kansas Tax-Free Intermediate Bond Fund | US Territory Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock
U.S. Territory Risk: Adverse political and economic conditions and developments affecting any U.S. territory, commonwealth or possession may, in turn, negatively affect the Fund’s performance, and the Fund’s investments may be more volatile, than if its investments were not so concentrated in such territory.
The Kansas Tax-Free Intermediate Bond Fund | Kansas Tax-Free Intermediate Bond Fund  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 0.47%
Other Expenses rr_OtherExpensesOverAssets 0.36%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.83%
Less Fee Waiver and/or Expense Reimbursement rr_FeeWaiverOrReimbursementOverAssets (0.13%) [1]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement rr_NetExpensesOverAssets 0.70%
1 Year rr_ExpenseExampleYear01 $ 72
3 Years rr_ExpenseExampleYear03 252
5 Years rr_ExpenseExampleYear05 448
10 Years rr_ExpenseExampleYear10 $ 1,013
2015 rr_AnnualReturn2015 2.79%
2016 rr_AnnualReturn2016 (0.20%)
2017 rr_AnnualReturn2017 3.94%
2018 rr_AnnualReturn2018 0.95%
2019 rr_AnnualReturn2019 5.60%
2020 rr_AnnualReturn2020 4.32%
2021 rr_AnnualReturn2021 0.22%
2022 rr_AnnualReturn2022 (7.27%)
2023 rr_AnnualReturn2023 4.05%
2024 rr_AnnualReturn2024 0.55%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Best Quarter
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Dec. 31, 2023
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 7.01%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Worst Quarter
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Mar. 31, 2022
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (5.10%)
1 Year rr_AverageAnnualReturnYear01 0.55%
5 Years rr_AverageAnnualReturnYear05 0.28%
10 Years rr_AverageAnnualReturnYear10 1.43%
The Kansas Tax-Free Intermediate Bond Fund | Returns After Taxes on Distributions | Kansas Tax-Free Intermediate Bond Fund  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 0.53%
5 Years rr_AverageAnnualReturnYear05 0.27%
10 Years rr_AverageAnnualReturnYear10 1.42%
The Kansas Tax-Free Intermediate Bond Fund | Returns After Taxes on Distributions and Sale of Shares | Kansas Tax-Free Intermediate Bond Fund  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 1.26%
5 Years rr_AverageAnnualReturnYear05 0.64%
10 Years rr_AverageAnnualReturnYear10 1.56%
The Kansas Tax-Free Intermediate Bond Fund | Bloomberg Municipal Bond Index  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 1.05% [2]
5 Years rr_AverageAnnualReturnYear05 0.99% [2]
10 Years rr_AverageAnnualReturnYear10 2.25% [2]
The Kansas Tax-Free Intermediate Bond Fund | Bloomberg 3-15 Year Blend Municipal Bond Index  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 0.71% [3]
5 Years rr_AverageAnnualReturnYear05 1.05% [3]
10 Years rr_AverageAnnualReturnYear10 2.12% [3]
[1] Commerce Investment Advisors, Inc. (“Commerce” or the “Adviser”) has contractually agreed to waive all or a portion of its investment advisory fees and/or reimburse expenses in amounts necessary so that after such waivers and/or reimbursements, the maximum Total Annual Fund Operating Expenses during the current fiscal year do not exceed 0.70% of the Fund’s average daily net assets through March 1, 2026. After this date, the Adviser or the Fund may terminate the contractual arrangement.
[2] The Bloomberg Municipal Bond Index is an unmanaged index that measures the U.S. Dollar-denominated long-term tax exempt bond market. The Index figures do not reflect any deduction for fees, taxes or expenses. In connection with a new regulatory requirement, effective October 31, 2024, the Fund changed its broad based index to the Bloomberg Municipal Bond Index.
[3] The Bloomberg 3-15 Year Blend Municipal Bond Index is an unmanaged index comprised of investment-grade municipal securities ranging from 2 to 17 years in maturity. The Index figures do not reflect any deduction for fees, taxes or expenses.