| Label | Element | Value | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| The Growth Fund | ||||||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||||||||||||
| Risk/Return [Heading] | rr_RiskReturnHeading | The Growth Fund – Summary | ||||||||||||||||
| Objective [Heading] | rr_ObjectiveHeading | Investment Objective | ||||||||||||||||
| Objective, Primary [Text Block] | rr_ObjectivePrimaryTextBlock | The investment objective of the Fund is to seek capital appreciation.
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| 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.
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| 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 31% of the average value of its portfolio.
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| Portfolio Turnover, Rate | rr_PortfolioTurnoverRate | 31.00% | ||||||||||||||||
| Expenses Not Correlated to Ratio Due to Acquired Fund Fees [Text] | rr_ExpensesNotCorrelatedToRatioDueToAcquiredFundFees | The “Total Annual Fund Operating Expenses” do not correlate to the ratios of net and total expenses to average net assets provided in the Financial Highlights, which reflect the operating expenses of the Fund and do not include Acquired (Underlying) 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 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 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 |
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| Strategy Portfolio Concentration [Text] | rr_StrategyPortfolioConcentration | The Fund may invest a significant amount of its assets from time to time in technology sectors. | ||||||||||||||||
| 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. To obtain updated performance information, please visit the Fund’s website at www.commercefunds.com or by calling 1-800-995-6365.
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| 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 Russell 1000® Growth Index, an unmanaged index, measures the performance of the large-cap growth segment of the U.S. equity universe. It includes those Russell 1000 companies with higher price-to-book ratios and higher forecasted growth values. | ||||||||||||||||
| 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* Q2 ’20 +24.05% Worst Quarter* Q2 ’22 –19.18% * 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 Russell 1000® 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-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). | ||||||||||||||||
| 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).
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| The Growth Fund | Risk Nondiversified Status [Member] | ||||||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||||||||||||
| Risk [Text Block] | rr_RiskTextBlock | Non-Diversified Risk: Non-diversified funds typically hold fewer securities than diversified funds do. Consequently, the change in value of any one security may affect the overall value of a non-diversified portfolio more than it would a diversified portfolio.
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| The Growth Fund | Risk Lose Money [Member] | ||||||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||||||||||||
| Risk [Text Block] | rr_RiskTextBlock | As with any mutual fund, it is possible to lose money on an investment in the Fund. | ||||||||||||||||
| The Growth 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 deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any government agency. | ||||||||||||||||
| The Growth 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. There is also a risk that a particular style of investing, such as growth, may underperform other styles of investing or the market generally.
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| The Growth 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 types of stocks held by the Fund may not perform as well as other types of stocks.
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| The Growth Fund | Equity Securities Risk [Member] | ||||||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||||||||||||
| Risk [Text Block] | rr_RiskTextBlock | Equity Securities Risk: Common stockholders participate in company profits through dividends and stock market appreciation and, in the event of bankruptcy, distributions, on a pro-rata basis after other claims are satisfied. Many factors affect the value of common stock, including earnings, earnings forecasts, corporate events and factors impacting the issuer’s industry and the market generally. Common stock generally has the greatest appreciation and depreciation potential of all corporate securities.
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| The Growth Fund | Quantitative Model Risk [Member] | ||||||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||||||||||||
| Risk [Text Block] | rr_RiskTextBlock | Quantitative Model Risk: Securities selected using quantitative models may perform differently from the market as a whole for many reasons, including the factors used in building the model and the weights placed on each factor, among others. Results generated by such models may be impaired by errors in human judgment, data imprecision, software or other technology system malfunctions. The quantitative model used by the Adviser to manage the Fund may not perform as expected, particularly in volatile markets.
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| The Growth Fund | Management Risk [Member] | ||||||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||||||||||||
| Risk [Text Block] | rr_RiskTextBlock | Management Risk: A strategy used by the Adviser may fail to produce the intended results.
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| The Growth Fund | Growth Investing Risk [Member] | ||||||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||||||||||||
| Risk [Text Block] | rr_RiskTextBlock | Growth Investing Risk: Growth stocks are typically priced higher than other stocks, in relation to earnings and other measures, because investors believe they have more growth potential. This potential may or may not be realized and, if it is not realized, may result in a loss to the Fund. Growth stock prices also tend to be more volatile than the overall market. Because different types of stocks go out of favor with investors depending on market and economic conditions, the Fund’s return may be adversely affected during a market downturn and when growth stocks are out of favor.
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| The Growth Fund | Large Cap Risk [Member] | ||||||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||||||||||||
| Risk [Text Block] | rr_RiskTextBlock | Large-Cap Risk: Large capitalization companies may be less able than smaller capitalization companies to adapt to changing market conditions. In addition, larger companies may grow more slowly or be slower to respond to business developments than smaller companies. Large capitalization companies may be more mature and subject to more limited growth potential compared with smaller capitalization companies. Over certain periods, the performance of large capitalization companies has trailed the overall performance of the broader securities markets.
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| The Growth Fund | Mid Cap Risk [Member] | ||||||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||||||||||||
| Risk [Text Block] | rr_RiskTextBlock | Mid-Cap Risk: Investing in securities of mid-sized companies may be riskier than investing in larger, more established companies. Mid-sized companies are more vulnerable to adverse developments because of more limited product lines, markets or financial resources. Also, these stocks may trade less often and in limited volume compared to larger cap stocks trading on a national securities exchange. The prices of these stocks may be more volatile than the prices of larger company stocks. As a result, the Fund’s net asset value may be subject to rapid and substantial changes.
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| The Growth Fund | Issuer Risk [Member] | ||||||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||||||||||||
| Risk [Text Block] | rr_RiskTextBlock | Issuer Risk: The value of a security owned by the Fund may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer’s goods or services.
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| The Growth Fund | Sector Concentration Risk [Member] | ||||||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||||||||||||
| Risk [Text Block] | rr_RiskTextBlock | Sector Concentration Risk: Although the Fund will not concentrate in any particular industry, it may be heavily invested in a particular economic sector. If the Fund focuses on one or a few sectors, its performance is likely to be disproportionately affected by developments that significantly affect that sector, including market, economic, political or regulatory developments. Individual sectors may be more volatile and may perform differently than the broader market. The Fund’s performance may also suffer if a sector does not perform as well as the Adviser expected. Prices of securities in the same sector often change collectively regardless of the merits of individual companies.
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| The Growth Fund | Information Technology Sector Risk [Member] | ||||||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||||||||||||
| Risk [Text Block] | rr_RiskTextBlock | Information Technology Sector Risk: The securities of technology companies may be subject to greater price volatility than securities of companies in other sectors. Technology companies may produce or use products or services that prove commercially unsuccessful, or become obsolete, or may be adversely impacted by government regulation. Technology securities may experience significant price movements caused by disproportionate investor optimism or pessimism.
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| The Growth Fund | Consumer Discretionary Sector Risk [Member] | ||||||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||||||||||||
| Risk [Text Block] | rr_RiskTextBlock | Consumer Discretionary Sector Risk: Companies engaged in the consumer discretionary sector are affected by fluctuations in supply and demand and changes in consumer preferences, social trends and marketing campaigns. Changes in consumer spending as a result of world events, political and economic conditions, commodity price volatility, changes in exchange rates, imposition of import controls, increased competition, depletion of resources and labor relations also may adversely affect these companies.
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| The Growth Fund | Health Care Sector Risk [Member] | ||||||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||||||||||||
| Risk [Text Block] | rr_RiskTextBlock | Health Care Sector Risk: Factors such as extensive government regulation, restrictions on government reimbursement for medical expenses, rising costs of medical products, services and facilities, pricing pressure, an increased emphasis on outpatient services, limited number of products, industry innovation, costs associated with obtaining and protecting patents, product liability and other claims, changes in technologies and other market developments can affect companies in the health care sector.
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| The Growth 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.
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| The Growth 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.
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| The Growth Fund | Growth Fund | ||||||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||||||||||||
| Management Fees | rr_ManagementFeesOverAssets | 0.40% | ||||||||||||||||
| Other Expenses | rr_OtherExpensesOverAssets | 0.33% | ||||||||||||||||
| Acquired (Underlying) Fund Fees and Expenses | rr_AcquiredFundFeesAndExpensesOverAssets | 0.01% | ||||||||||||||||
| Total Annual Fund Operating Expenses | rr_ExpensesOverAssets | 0.74% | [1],[2] | |||||||||||||||
| 1 Year | rr_ExpenseExampleYear01 | $ 75 | ||||||||||||||||
| 3 Years | rr_ExpenseExampleYear03 | 235 | ||||||||||||||||
| 5 Years | rr_ExpenseExampleYear05 | 409 | ||||||||||||||||
| 10 Years | rr_ExpenseExampleYear10 | $ 914 | ||||||||||||||||
| 2015 | rr_AnnualReturn2015 | 5.47% | ||||||||||||||||
| 2016 | rr_AnnualReturn2016 | 8.69% | ||||||||||||||||
| 2017 | rr_AnnualReturn2017 | 27.55% | ||||||||||||||||
| 2018 | rr_AnnualReturn2018 | (0.86%) | ||||||||||||||||
| 2019 | rr_AnnualReturn2019 | 35.55% | ||||||||||||||||
| 2020 | rr_AnnualReturn2020 | 28.93% | ||||||||||||||||
| 2021 | rr_AnnualReturn2021 | 26.74% | ||||||||||||||||
| 2022 | rr_AnnualReturn2022 | (26.62%) | ||||||||||||||||
| 2023 | rr_AnnualReturn2023 | 36.33% | ||||||||||||||||
| 2024 | rr_AnnualReturn2024 | 31.17% | ||||||||||||||||
| Highest Quarterly Return, Label | rr_HighestQuarterlyReturnLabel | Best Quarter | ||||||||||||||||
| Highest Quarterly Return, Date | rr_BarChartHighestQuarterlyReturnDate | Jun. 30, 2020 | ||||||||||||||||
| Highest Quarterly Return | rr_BarChartHighestQuarterlyReturn | 24.05% | ||||||||||||||||
| Lowest Quarterly Return, Label | rr_LowestQuarterlyReturnLabel | Worst Quarter | ||||||||||||||||
| Lowest Quarterly Return, Date | rr_BarChartLowestQuarterlyReturnDate | Jun. 30, 2022 | ||||||||||||||||
| Lowest Quarterly Return | rr_BarChartLowestQuarterlyReturn | (19.18%) | ||||||||||||||||
| 1 Year | rr_AverageAnnualReturnYear01 | 31.17% | ||||||||||||||||
| 5 Years | rr_AverageAnnualReturnYear05 | 16.48% | ||||||||||||||||
| 10 Years | rr_AverageAnnualReturnYear10 | 15.47% | ||||||||||||||||
| The Growth Fund | Returns After Taxes on Distributions | Growth Fund | ||||||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||||||||||||
| 1 Year | rr_AverageAnnualReturnYear01 | 28.10% | ||||||||||||||||
| 5 Years | rr_AverageAnnualReturnYear05 | 13.99% | ||||||||||||||||
| 10 Years | rr_AverageAnnualReturnYear10 | 13.19% | ||||||||||||||||
| The Growth Fund | Returns After Taxes on Distributions and Sale of Shares | Growth Fund | ||||||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||||||||||||
| 1 Year | rr_AverageAnnualReturnYear01 | 20.45% | ||||||||||||||||
| 5 Years | rr_AverageAnnualReturnYear05 | 12.75% | ||||||||||||||||
| 10 Years | rr_AverageAnnualReturnYear10 | 12.22% | ||||||||||||||||
| The Growth Fund | Russell 1000® Index | ||||||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||||||||||||
| 1 Year | rr_AverageAnnualReturnYear01 | 24.51% | [3] | |||||||||||||||
| 5 Years | rr_AverageAnnualReturnYear05 | 14.28% | [3] | |||||||||||||||
| 10 Years | rr_AverageAnnualReturnYear10 | 12.87% | [3] | |||||||||||||||
| The Growth Fund | Russell 1000® Growth Index | ||||||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||||||||||||
| 1 Year | rr_AverageAnnualReturnYear01 | 33.36% | [4] | |||||||||||||||
| 5 Years | rr_AverageAnnualReturnYear05 | 18.96% | [4] | |||||||||||||||
| 10 Years | rr_AverageAnnualReturnYear10 | 16.78% | [4] | |||||||||||||||
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