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Label Element Value
Monetta Fund  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Monetta Fund
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The Monetta Fund seeks long-term capital growth.
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 Monetta Fund.
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 Monetta 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 Monetta 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 Monetta Fund’s performance. During the most recent fiscal year, the portfolio turnover rate of the Monetta Fund was 52% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 52.00%
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 Monetta Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Monetta 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 Monetta 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
The Monetta Fund invests (at the time of investment) at least 65% of its net assets, under normal market conditions, in common stocks of companies of all market capitalization ranges, although Monetta Financial Services, Inc. (the “Adviser”) expects that the Fund will primarily invest in common stocks of large-cap companies (those with market capitalizations of at least $10 billion measured at the time of investment). The Fund may invest in more volatile sectors, which could result in a disproportionate return or loss compared to the S&P 500® Index, the Fund’s benchmark. As measured at the time of investment, the Fund may invest up to 5% of its net assets in exchange-traded funds (“ETFs”) and up to 10% of its net assets in foreign stocks, which is accomplished primarily through American Depositary Receipts (“ADRs”).

The Adviser employs a bottom-up, multi-faceted investment approach, which combines fundamental, technical, and macro-economic factors in its stock selection process. A stock’s relative volatility, versus that of its industry sector and the overall market, aids the Adviser in determining individual stocks’ buy and sell points.

The Adviser’s investment decisions for the Monetta Fund’s growth style of investing are based on the Adviser’s review of a company’s financial statements and other factors, including competitive landscape and recent product announcements. The Adviser also reviews quarterly earnings reports with an emphasis on management guidance. The Adviser generally
seeks to invest in companies with positive long-term earnings growth expectations and that the Adviser believes have favorable short-term technical and/or market factors, including price and volume trends, relative strength, and institutional interest. The Adviser seeks to invest in quality companies that have demonstrated a proven track record of earnings growth. The Adviser also emphasizes price direction, volume, and relative strength, which it believes to be harbingers of pending fundamental changes that could lead to more/less institutional ownership.

Depending on market conditions and the foregoing considerations, the Adviser may at times be very active in turning over the Fund’s portfolio. The Adviser’s investment decisions for the Fund’s growth style of investing are based on the Adviser’s determination that a company’s revenue and earnings growth have the potential to exceed market expectations and that the security is at an attractive entry point.

The Fund may make short-term investments, without limitation, for defensive purposes, which may provide lower returns than other types of investments. From time to time, the Fund may focus its investments in a particular sector, including the technology sector.
Strategy Portfolio Concentration [Text] rr_StrategyPortfolioConcentration The Monetta Fund invests (at the time of investment) at least 65% of its net assets, under normal market conditions, in common stocks of companies of all market capitalization ranges, although Monetta Financial Services, Inc. (the “Adviser”) expects that the Fund will primarily invest in common stocks of large-cap companies (those with market capitalizations of at least $10 billion measured at the time of investment). The Fund may invest in more volatile sectors, which could result in a disproportionate return or loss compared to the S&P 500® Index, the Fund’s benchmark. As measured at the time of investment, the Fund may invest up to 5% of its net assets in exchange-traded funds (“ETFs”) and up to 10% of its net assets in foreign stocks, which is accomplished primarily through American Depositary Receipts (“ADRs”).
Risk [Heading] rr_RiskHeading Principal Risks
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock The following bar chart and table show some indication of the risks of investing in the Monetta Fund. The bar chart shows the changes in the Fund’s performance from year to year. Also shown are the Monetta Fund’s highest and lowest quarterly returns. The table below shows the Fund’s average annual total returns for certain time periods compared to the returns of the S&P 500® Index, a broad-based securities index. The Fund’s past performance, before and after taxes, is not necessarily an indication of how the Monetta Fund will perform in the future. Updated performance information is available on the Fund’s website at www.monetta.com or by calling 1‑800-MONETTA.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The following bar chart and table show some indication of the risks of investing in the Monetta Fund.
Performance Availability Phone [Text] rr_PerformanceAvailabilityPhone 1‑800-MONETTA
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.monetta.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 Monetta Fund will perform in the future.
Bar Chart [Heading] rr_BarChartHeading MONETTA FUND (MONTX) Calendar Year Total Returns (before taxes)
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
Highest
Quarterly
Return
23.72%
(Quarter ended
June 30, 2020)
Lowest
Quarterly
Return
-20.50%
(Quarter ended
June 30, 2022)
Performance Table Heading rr_PerformanceTableHeading Average Annual Total Returns (for the periods ended December 31, 2023)
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 an investor’s tax situation, and may differ from those shown, and after-tax returns shown are not relevant to investors who hold their Fund shares through tax-exempt, tax-advantaged, or tax-deferred arrangements, such as 401(k) plans, 529 plans, or individual retirement accounts (“IRAs”). Holdings in such accounts may be subject to taxes at a later date.
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 an investor’s tax situation, and may differ from those shown, and after-tax returns shown are not relevant to investors who hold their Fund shares through tax-exempt, tax-advantaged, or tax-deferred arrangements, such as 401(k) plans, 529 plans, or individual retirement accounts (“IRAs”). Holdings in such accounts may be subject to taxes at a later date.
Monetta Fund | Risk Lose Money [Member]  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock You could lose all or a portion of your investment in the Fund as a result of a steep, sudden and/or prolonged market decline.
Monetta Fund | ADR Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock ADR Risk. ADRs may be subject to some of the same risks as direct investment in foreign companies, which includes international trade, currency, political, regulatory and diplomatic risks. In a sponsored ADR arrangement, the foreign issuer assumes the obligation to pay some or all of the depositary’s transaction fees. Under an unsponsored ADR arrangement, the foreign issuer assumes no obligations and the depositary’s transaction fees are paid directly by the ADR holders.
Monetta Fund | Equity Securities Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock Equity Securities Risk. Prices of equity securities may fluctuate rapidly and unpredictably in shorter time periods for a variety of reasons, including as a result of political or economic events having little or nothing to do with the performance of the issuers, and there is no guarantee of long-term growth. Equity securities of growth companies may be more volatile and could result in a disproportionate return or loss respective to their benchmarks. Equity securities of technology growth companies, in particular, may be more volatile than equity securities of other companies primarily due to market saturation, price competition and rapid product obsolescence.
Monetta Fund | Management Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock Management Risk. The Adviser’s investment strategy may not achieve the Fund’s objective. The Adviser’s judgments about the attractiveness, value and potential appreciation of particular stocks or other securities in which the Fund invests may prove to be incorrect and there is no guarantee that the Adviser’s judgment will produce the desired results.
Monetta Fund | Market Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock Market Risk. The stock market or stocks and ETFs in the Fund’s portfolio may decline or not increase at the rate anticipated.
Monetta Fund | Growth Stock Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock Growth Stock Risk. Growth-oriented funds may under-perform when growth stocks are out of favor.
Monetta Fund | Foreign Investment Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock Foreign Investment Risk. Foreign investing, involves risks not typically associated with U.S. investments, including adverse fluctuations in foreign currency values, adverse political, social and economic developments, less liquidity, greater volatility and less developed or less efficient trading markets.
Monetta Fund | Short-Term Investment Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock Short-Term Investment Risk. The Fund may make short-term investments without limitation in periods when the Adviser determines that a temporary defensive position is warranted. When the Fund is so invested, it may not achieve its investment objective.
Monetta Fund | Large Cap Equity Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock Large Cap Equity Risk. The stocks of large capitalization companies involve risks due to larger, more established companies being unable to respond quickly to new competitive challenges, such as consumer preferences. Larger companies may also not be able to attain the high levels of growth rates or returns similar to those of smaller capitalization companies.
Monetta Fund | Small And MidCap Equity Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock Small and MidCap Equity Risk. The stocks of small and midcap capitalization companies involve substantial risk. These companies may have limited product lines, markets or financial resources, and they may be dependent on a limited management group. Stocks of these companies may be subject to more abrupt or erratic market movements than those of larger, more established companies or the market averages in general.
Monetta Fund | Epidemic Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock 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 Funds’ 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 Funds from executing advantageous investment decisions in a timely manner and negatively impact the Funds’ ability to achieve their investment objectives. Any such event(s) could have a significant adverse impact on the value and risk profile of the Funds.
Monetta Fund | Market And Geopolitical Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock Market and Geopolitical Risk. The increasing interconnectivity between global economies and financial markets increases the likelihood that events or conditions in one region or financial market may adversely impact issuers in a different country, region or financial market. Securities in the Fund’s portfolio may underperform due to inflation (or expectations for inflation), interest rates, global demand for particular products or resources, natural disasters, pandemics, epidemics, terrorism, regulatory events and governmental or quasi-governmental actions. The occurrence of global events similar to those in recent years may result in market volatility and may have long term effects on both the U.S. and global financial markets. The coronavirus (COVID-19) global pandemic, which as resulted in a public health crisis, business interruptions, and growth concerns in the U.S. and overseas, has had negative impacts, and in many cases severe negative impacts, on markets worldwide. It is not known how long such impacts, or any future impacts of other significant events described above, will or would last, but there could be a prolonged period of global economic slowdown, which may impact your Fund investment.
Monetta Fund | Sector Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock Sector Risk. The Fund’s investments may be focused in securities of a particular sector from time to time. Economic, legislative or regulatory developments may occur that significantly affect the sector. This may cause the Fund’s net asset value to fluctuate more than that of a fund that does not focus in a particular sector or sectors.
Monetta Fund | S&P 500® 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 deductions for fees, expenses or taxes)
Label rr_AverageAnnualReturnLabel S&P 500® Index (reflects no deductions for fees, expenses or taxes)
1 Year rr_AverageAnnualReturnYear01 26.29%
5 Years rr_AverageAnnualReturnYear05 15.69%
10 Years rr_AverageAnnualReturnYear10 12.03%
Monetta Fund | Monetta Fund  
Prospectus [Line Items] rr_ProspectusLineItems  
Trading Symbol dei_TradingSymbol MONTX
Shareholder Fee, Other rr_ShareholderFeeOther none
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.95%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.51%
Expenses (as a percentage of Assets) rr_ExpensesOverAssets 1.46%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 149
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 462
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 797
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 1,746
Annual Return 2014 rr_AnnualReturn2014 7.15%
Annual Return 2015 rr_AnnualReturn2015 3.19%
Annual Return 2016 rr_AnnualReturn2016 6.98%
Annual Return 2017 rr_AnnualReturn2017 19.19%
Annual Return 2018 rr_AnnualReturn2018 (3.36%)
Annual Return 2019 rr_AnnualReturn2019 28.30%
Annual Return 2020 rr_AnnualReturn2020 29.41%
Annual Return 2021 rr_AnnualReturn2021 17.83%
Annual Return 2022 rr_AnnualReturn2022 (27.93%)
Annual Return 2023 rr_AnnualReturn2023 31.29%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel HighestQuarterlyReturn
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2020
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 23.72%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel LowestQuarterlyReturn
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Jun. 30, 2022
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (20.50%)
Label rr_AverageAnnualReturnLabel Return Before Taxes
1 Year rr_AverageAnnualReturnYear01 31.29%
5 Years rr_AverageAnnualReturnYear05 13.11%
10 Years rr_AverageAnnualReturnYear10 9.69%
Monetta Fund | Monetta Fund | After Taxes on Distributions  
Prospectus [Line Items] rr_ProspectusLineItems  
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions
1 Year rr_AverageAnnualReturnYear01 31.29%
5 Years rr_AverageAnnualReturnYear05 11.89%
10 Years rr_AverageAnnualReturnYear10 8.04%
Monetta Fund | Monetta Fund | 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 18.53%
5 Years rr_AverageAnnualReturnYear05 10.47%
10 Years rr_AverageAnnualReturnYear10 7.48%
Monetta Young Investor Growth Fund  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Monetta Young Investor Growth Fund
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The Monetta Young Investor Growth Fund (the “Young Investor Growth Fund”) seeks long-term capital growth.
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 Young Investor Growth Fund.
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 Young Investor Growth 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 Young Investor Growth 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 Young Investor Growth Fund’s performance. During the most recent fiscal year, the Young Investor Growth Fund’s portfolio turnover rate was 6% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 6.00%
Expenses Not Correlated to Ratio Due to Acquired Fund Fees [Text] rr_ExpensesNotCorrelatedToRatioDueToAcquiredFundFees Acquired Fund Fees and Expenses are the indirect costs of investing in other investment companies. Total Annual Fund Operating Expenses do not reflect Fund expenses paid indirectly and do not correlate to the expense ratios in the Fund’s Financial Highlights because the Financial Highlights include only the direct operating expenses incurred by the Fund and exclude 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 cost of investing in the Young Investor Growth Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Young Investor Growth 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 Young Investor Growth 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
The Young Investor Growth Fund employs a “core-plus” investment approach, which includes an active and passive component. For the Fund’s “passive” component of its strategy, the Fund invests approximately 50% of its assets in exchange-traded funds (“ETFs”) that seek to track the S&P 500® Index (the “Index”) or other broad-based market indices that primarily include stocks of large capitalization U.S. companies. For the Fund’s “active” component, the balance of the Fund is directly invested in common stocks of companies of all market capitalization ranges and is diversified among industries and market sectors. However, the Adviser will primarily seek to invest in common stocks of large-cap companies (those with market capitalizations of at least $10 billion) that the Adviser considers to be high quality, well-known companies that produce products or provide services that are recognized by many investors.
In selecting individual stock investments, emphasis is placed on those companies that the Adviser believes to have above average long-term growth potential, a history of growth, a competitive advantage, and an established and experienced management team. The Adviser also considers price direction, volume, and relative strength of the issuers of such investments, which the Adviser believes to be harbingers of pending fundamental changes that could lead to more/less institutional ownership. Depending on market conditions and such considerations, the Adviser may at times be very active in turning over the non-ETF portion of the Young Investor Growth Fund’s portfolio. While the Adviser expects that the Fund’s assets will usually be invested approximately 50% in funds (passive component) and 50% in direct investments (active component), these percentages may vary significantly from time to time due to market conditions. The Fund intends to invest at least 30% of its assets in each component under normal market conditions. The Fund may invest up to 10% of its assets in foreign stocks, primarily through American Depositary Receipts (“ADRs”).

A bottom-up approach is used in selecting these investments by evaluating each company on the basis of its financial statements and operations. Factors such as a company’s industry leadership, competitive advantages, earnings growth, profit margins, sales trends, and dividends, as well as technical factors, are scrutinized as part of the Adviser’s analysis.

The combination of investing in a core index component and individual growth companies seeks to diversify the portfolio through the use of ETF investments while providing the Adviser with the opportunity to seek excess returns relative to the index in specific company investments.
The Fund may make short-term investments, without limitation, for defensive purposes, which may provide lower returns than other types of investments.
Strategy Portfolio Concentration [Text] rr_StrategyPortfolioConcentration The Fund intends to invest at least 30% of its assets in each component under normal market conditions. The Fund may invest up to 10% of its assets in foreign stocks, primarily through American Depositary Receipts (“ADRs”).
Risk [Heading] rr_RiskHeading Principal Risks
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock The following bar chart and table show the risks of investing in the Young Investor Growth Fund. The bar chart shows the changes in the Young Investor Growth Fund’s performance from year to year. Also shown are the Young Investor Growth Fund’s highest and lowest quarterly returns. The table below shows the Young Investor Growth Fund’s average annual total returns for certain time periods compared to the returns of the S&P 500® Index, a broad-based securities index. The Young Investor Growth Fund’s past performance, before and after taxes, is not necessarily an indication of how the Young Investor Growth Fund will perform in the future. Updated performance is available on the Fund’s website at www.monetta.com or by calling 1-800-MONETTA.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The following bar chart and table show the risks of investing in the Young Investor Growth Fund.
Performance Availability Phone [Text] rr_PerformanceAvailabilityPhone 1-800-MONETTA
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.monetta.com
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Young Investor Growth Fund’s past performance, before and after taxes, is not necessarily an indication of how the Young Investor Growth Fund will perform in the future.
Bar Chart [Heading] rr_BarChartHeading Young Investor Growth Fund (MYIFX) Calendar Year Total Returns (before taxes)
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
Highest
Quarterly
Return
21.64%
(Quarter ended
June 30, 2020)
Lowest
Quarterly
Return
-19.14%
(Quarter ended
June 30, 2022)
Performance Table Heading rr_PerformanceTableHeading Average Annual Total Returns (for the periods ended December 31, 2023)
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 an investor’s tax situation, and may differ from those shown, and after-tax returns shown are not relevant to investors who hold their Fund shares through tax-exempt, tax-advantaged, or tax-deferred arrangements, such as 401(k) plans, 529 plans, or individual retirement accounts (“IRAs”).
Performance Table Explanation after Tax Higher rr_PerformanceTableExplanationAfterTaxHigher 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 benefit to the investor.
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 an investor’s tax situation, and may differ from those shown, and after-tax returns shown are not relevant to investors who hold their Fund shares through tax-exempt, tax-advantaged, or tax-deferred arrangements, such as 401(k) plans, 529 plans, or individual retirement accounts (“IRAs”). Holdings in such accounts may be subject to taxes at a later date.

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 benefit to the investor.
Monetta Young Investor Growth Fund | Risk Lose Money [Member]  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock You could lose all or a portion of your investment in the Fund as a result of a steep, sudden and/or prolonged market decline.
Monetta Young Investor Growth Fund | ADR Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock ADR Risk. ADRs may be subject to some of the same risks as direct investment in foreign companies, which includes international trade, currency, political, regulatory and diplomatic risks. In a sponsored ADR arrangement, the foreign issuer assumes the obligation to pay some or all of the depositary’s transaction fees. Under an unsponsored ADR arrangement, the foreign issuer assumes no obligations and the depositary’s transaction fees are paid directly by the ADR holders.
Monetta Young Investor Growth Fund | Equity Securities Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock Equity Securities Risk. Prices of equity securities may fluctuate rapidly and unpredictably in shorter time periods for a variety of reasons, including as a result of political or economic events having little or nothing to do with the performance of the issuers, and there is no guarantee of long-term growth. Equity securities of growth companies may be more volatile and could result in a disproportionate return or loss respective to their benchmarks. Equity securities of technology growth companies, in particular, may be more volatile than equity securities of other companies primarily due to market saturation, price competition and rapid product obsolescence.
Monetta Young Investor Growth Fund | Management Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock Management Risk. The Adviser’s investment strategy may not achieve the Fund’s objective. The Adviser’s judgments about the attractiveness, value and potential appreciation of particular stocks or other securities in which the Fund invests may prove to be incorrect and there is no guarantee that the Adviser’s judgment will produce the desired results.
Monetta Young Investor Growth Fund | Market Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock Market Risk. The stock market or stocks and ETFs in the Fund’s portfolio may decline or not increase at the rate anticipated.
Monetta Young Investor Growth Fund | Growth Stock Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock Growth Stock Risk. Growth-oriented funds may under-perform when growth stocks are out of favor.
Monetta Young Investor Growth Fund | Foreign Investment Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock Foreign Investment Risk. Foreign investing, involves risks not typically associated with U.S. investments, including adverse fluctuations in foreign currency values, adverse political, social and economic developments, less liquidity, greater volatility and less developed or less efficient trading markets.
Monetta Young Investor Growth Fund | ETF Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock ETF Risk. ETFs are subject to substantially the same risks as those of their underlying securities or other investments held by the ETF, and investments in ETFs will result in the Fund’s shareholders indirectly bearing a proportionate share of the ETFs’ operating expenses, in addition to the direct expenses of the Fund. Because the value of ETF shares depends on the demand in the market, ETF shares may trade at a discount or premium to the ETF’s net asset value per share.
Monetta Young Investor Growth Fund | Short-Term Investment Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock Short-Term Investment Risk. The Fund may make short-term investments without limitation in periods when the Adviser determines that a temporary defensive position is warranted. When the Fund is so invested, it may not achieve its investment objective.
Monetta Young Investor Growth Fund | Large Cap Equity Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock Large Cap Equity Risk. The stocks of large capitalization companies involve risks due to larger, more established companies being unable to respond quickly to new competitive challenges, such as consumer preferences. Larger companies may also not be able to attain the high levels of growth rates or returns similar to those of smaller capitalization companies.
Monetta Young Investor Growth Fund | Small And MidCap Equity Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock Small and MidCap Equity Risk. The stocks of small and midcap capitalization companies involve substantial risk. These companies may have limited product lines, markets or financial resources, and they may be dependent on a limited management group. Stocks of these companies may be subject to more abrupt or erratic market movements than those of larger, more established companies or the market averages in general.
Monetta Young Investor Growth Fund | Epidemic Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock 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 Funds’ 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 Funds from executing advantageous investment decisions in a timely manner and negatively impact the Funds’ ability to achieve their investment objectives. Any such event(s) could have a significant adverse impact on the value and risk profile of the Funds.
Monetta Young Investor Growth Fund | Market And Geopolitical Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock Market and Geopolitical Risk. The increasing interconnectivity between global economies and financial markets increases the likelihood that events or conditions in one region or financial market may adversely impact issuers in a different country, region or financial market. Securities in the Fund’s portfolio may underperform due to inflation (or expectations for inflation), interest rates, global demand for particular products or resources, natural disasters, pandemics, epidemics, terrorism, regulatory events and governmental or quasi-governmental actions. The occurrence of global events similar to those in recent years may result in market volatility and may have long term effects on both the U.S. and global financial markets. The coronavirus (COVID-19) global pandemic, which as resulted in a public health crisis, business interruptions, and growth concerns in the U.S. and overseas, has had negative impacts, and in many cases severe negative impacts, on markets worldwide. It is not known how long such impacts, or any future impacts of other significant events described above, will or would last, but there could be a prolonged period of global economic slowdown, which may impact your Fund investment.
Monetta Young Investor Growth Fund | Sector Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock Sector Risk. The Fund’s investments may be focused in securities of a particular sector from time to time. Economic, legislative or regulatory developments may occur that significantly affect the sector. This may cause the Fund’s net asset value to fluctuate more than that of a fund that does not focus in a particular sector or sectors.
Monetta Young Investor Growth Fund | S&P 500® 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 deductions for fees, expenses or taxes)
Label rr_AverageAnnualReturnLabel S&P 500® Index (reflects no deductions for fees, expenses or taxes)
1 Year rr_AverageAnnualReturnYear01 26.29%
5 Years rr_AverageAnnualReturnYear05 15.69%
10 Years rr_AverageAnnualReturnYear10 12.03%
Monetta Young Investor Growth Fund | Monetta Young Investor Growth Fund  
Prospectus [Line Items] rr_ProspectusLineItems  
Trading Symbol dei_TradingSymbol MYIFX
Shareholder Fee, Other rr_ShareholderFeeOther none
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.55%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.81%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.04% [1]
Expenses (as a percentage of Assets) rr_ExpensesOverAssets 1.65%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 168
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 520
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 897
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 1,955
Annual Return 2014 rr_AnnualReturn2014 9.67%
Annual Return 2015 rr_AnnualReturn2015 1.40%
Annual Return 2016 rr_AnnualReturn2016 10.16%
Annual Return 2017 rr_AnnualReturn2017 23.10%
Annual Return 2018 rr_AnnualReturn2018 (5.30%)
Annual Return 2019 rr_AnnualReturn2019 32.58%
Annual Return 2020 rr_AnnualReturn2020 20.47%
Annual Return 2021 rr_AnnualReturn2021 22.87%
Annual Return 2022 rr_AnnualReturn2022 (25.79%)
Annual Return 2023 rr_AnnualReturn2023 32.74%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarterly Return
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2020
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 21.64%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarterly Return
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Jun. 30, 2022
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (19.14%)
Label rr_AverageAnnualReturnLabel Return Before Taxes
1 Year rr_AverageAnnualReturnYear01 32.74%
5 Years rr_AverageAnnualReturnYear05 14.09%
10 Years rr_AverageAnnualReturnYear10 10.69%
Monetta Young Investor Growth Fund | Monetta Young Investor Growth Fund | After Taxes on Distributions  
Prospectus [Line Items] rr_ProspectusLineItems  
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions
1 Year rr_AverageAnnualReturnYear01 30.51%
5 Years rr_AverageAnnualReturnYear05 10.41%
10 Years rr_AverageAnnualReturnYear10 7.91%
Monetta Young Investor Growth Fund | Monetta Young Investor Growth Fund | 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 20.82%
5 Years rr_AverageAnnualReturnYear05 10.89%
10 Years rr_AverageAnnualReturnYear10 8.23%
[1] Acquired Fund Fees and Expenses are the indirect costs of investing in other investment companies. Total Annual Fund Operating Expenses do not reflect Fund expenses paid indirectly and do not correlate to the expense ratios in the Fund’s Financial Highlights because the Financial Highlights include only the direct operating expenses incurred by the Fund and exclude Acquired Fund Fees and Expenses.