Investment Risks
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Jan. 28, 2026 |
| Gabelli Media Mogul Fund |
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| Prospectus [Line Items] |
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| Risk [Text Block] |
You may want to invest in the Fund if:
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you are a long-term investor |
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you seek growth of capital |
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you want exposure to equity investments in securities that were spun-off or are tracking stocks of Liberty Media |
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you believe that the market will favor value over growth stocks over the long term |
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you wish to include a value strategy as a portion of your overall investments |
The Fund’s share price will fluctuate with changes in the market value of the Fund’s portfolio securities. An investment in the Fund is not a deposit of the bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. When you sell Fund shares, they may be worth more or less than what you paid for them; you may lose money by investing in the Fund.
Investing in the Fund involves the following risks:
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| Gabelli Media Mogul Fund | Communication Services Risk [Member] |
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| Prospectus [Line Items] |
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| Risk [Text Block] |
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Communication Services Risk. The communication services sector consists of both companies in the telecommunication services industry as well as those in the media and entertainment industry. Companies in the media and entertainment industry group encompass a variety of services and products including television broadcasting, gaming products, social media, networking platforms, online classifieds, online review websites and Internet search engines. The communications services sector of a country’s economy is often subject to extensive government regulation. The costs of complying with governmental regulations, delays or failure to receive required regulatory approvals, or the enactment of new regulatory requirements may negatively affect the business of communications companies. |
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| Gabelli Media Mogul Fund | Industry Concentration Risk [Member] |
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| Prospectus [Line Items] |
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| Risk [Text Block] |
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Industry Concentration Risk. The Fund invests at least 25% of its assets in companies in the media industry, which includes telecommunications, publishing, and entertainment companies and, as a result, the value of the Fund’s shares will be more susceptible to the factors affecting those particular types of companies, including government regulation, greater price volatility for the overall market, rapid obsolescence of products and services, intense competition, and strong market reactions to technological developments. |
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| Gabelli Media Mogul Fund | Nondiversification Risk [Member] |
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| Prospectus [Line Items] |
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| Risk [Text Block] |
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Non-Diversification Risk. As a non-diversified fund, more of the Fund’s assets may be focused in the securities of a small number of issuers, which may make the value of the Fund’s shares more sensitive to changes in the market value of a single issuer or industry than shares of a diversified fund. |
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| Gabelli Media Mogul Fund | Largecapitalization Company Risk [Member] |
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| Prospectus [Line Items] |
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| Risk [Text Block] |
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Large-Capitalization Company Risk. Larger, more established companies may be unable to respond quickly to new competitive challenges such as changes in technology and consumer tastes. Many larger companies also may not be able to attain the high growth rate of successful smaller companies, especially during extended periods of economic expansion. |
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| Gabelli Media Mogul Fund | Midcapitalization Company Risk [Member] |
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| Prospectus [Line Items] |
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| Risk [Text Block] |
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Mid-Capitalization Company Risk. Mid-cap company risk is the risk that investing in securities of mid-cap companies could entail greater risks than investments in larger, more established companies. Mid-cap companies tend to have narrower product lines, more limited financial resources and a more limited trading market for their stocks, as compared with larger companies. As a result, their stock prices may decline more significantly or more rapidly than stocks of larger companies as market conditions change. |
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| Gabelli Media Mogul Fund | Smallcapitalization Company Risk [Member] |
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| Prospectus [Line Items] |
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| Risk [Text Block] |
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Small-Capitalization Company Risk. Investing in securities of small-capitalization companies may involve greater risks than investing in larger, more established issuers. Smaller capitalization companies typically have relatively lower revenues, limited product lines and lack of management depth, and may have a smaller share of the market for their products or services, than larger capitalization companies. The stocks of smaller capitalization companies tend to have less trading volume than stocks of larger capitalization companies. Less trading volume may make it more difficult for the Adviser to sell securities of smaller capitalization companies at quoted market prices. Finally, there are periods when investing in smaller capitalization stocks falls out of favor with investors and the stocks of smaller capitalization companies underperform. |
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| Gabelli Media Mogul Fund | Tracking Stock Risk [Member] |
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| Prospectus [Line Items] |
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| Risk [Text Block] |
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Tracking Stock Risk. The Fund invests in tracking stocks, which are typically a separate class of common stock whose value is linked to a specific business unit or operating division within a larger company and which is designed to “track” the performance of such business unit or division. The parent company, rather than the business unit or division, generally is the issuer of the tracking stock. However, holders of the tracking stock may not have the same rights as holders of the parent company’s common stock. In the event of the parent company’s liquidation, tracking stock shareholders typically do not have a legal claim on the parent company’s assets. |
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| Gabelli Media Mogul Fund | Value Investing Risk [Member] |
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| Prospectus [Line Items] |
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| Risk [Text Block] |
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Value Investing Risk. The Fund invests in “value” stocks. Value investing refers to buying securities that the portfolio manager believes are out of favor and/or undervalued in comparison to their peers or their prospects for growth. From time to time, “value” investing falls out of favor with investors. During those periods, the Fund’s relative performance may suffer. |
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| Gabelli Media Mogul Fund | Equity Risk [Member] |
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| Prospectus [Line Items] |
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| Risk [Text Block] |
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Equity Risk. Equity risk is the risk that the prices of the securities held by the Fund will fluctuate, sometimes rapidly and unpredictably, due to general market and economic conditions, perceptions regarding the industries in which the companies issuing the securities participate, and the issuer companies’ particular circumstances. Holders of equity securities only have rights to value in the company only after all issuer debts have been paid and they could lose their entire investment in a company that encounters financial difficulty. |
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| Gabelli Media Mogul Fund | Management Risk [Member] |
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| Prospectus [Line Items] |
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Management Risk. If the portfolio manager is incorrect in his assessment of the investment prospects of the securities the Fund holds, then the value of the Fund’s shares may decline. |
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| Gabelli Media Mogul Fund | Geopolitical Risk [Member] |
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| Prospectus [Line Items] |
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| Risk [Text Block] |
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Geopolitical Risk. Occurrence of global events, such as war, terrorist attacks, natural disasters, country instability, infectious disease epidemics, pandemics and other public health issues, market instability, debt crises and downgrades, embargoes, tariffs, sanctions and other trade barriers and other governmental trade or market control programs, the potential exit of a country from its respective union and related geopolitical events, may result in market volatility and may have long-lasting impacts on both the U.S. and global financial markets. For example, the U.S. government has imposed, and may in the future further increase, tariffs on certain foreign goods, and some foreign governments have instituted retaliatory tariffs on certain U.S. goods. These and any further actions that may be taken by the U.S. and foreign governments with respect to trade policy may impair the value of your investment in the Fund. |
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| Gabelli Media Mogul Fund | Risk Lose Money [Member] |
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| Prospectus [Line Items] |
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| Risk [Text Block] |
When you sell Fund shares, they may be worth more or less than what you paid for them; you may lose money by investing in the Fund.
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| Gabelli Media Mogul Fund | Risk Not Insured Depository Institution [Member] |
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| Prospectus [Line Items] |
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| Risk [Text Block] |
An investment in the Fund is not a deposit of the bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
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| Gabelli Media Mogul Fund | Risk Nondiversified Status [Member] |
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| Prospectus [Line Items] |
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| Risk [Text Block] |
As a non-diversified fund, more of the Fund’s assets may be focused in the securities of a small number of issuers, which may make the value of the Fund’s shares more sensitive to changes in the market value of a single issuer or industry than shares of a diversified fund.
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| Gabelli Pet Parents'(TM) Fund |
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| Prospectus [Line Items] |
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| Risk [Text Block] |
You may want to invest in the Fund if:
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● |
you are a long-term investor |
| |
● |
you seek capital appreciation |
| |
● |
you wish to include a value strategy as a portion of your overall investments |
The Fund’s share price will fluctuate with changes in the market value of the Fund’s portfolio securities. An investment in the Fund is not a deposit of the bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. When you sell Fund shares, they may be worth more or less than what you paid for them; you may lose money by investing in the Fund.
Investing in the Fund involves the following risks:
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| Gabelli Pet Parents'(TM) Fund | Industry Concentration Risk [Member] |
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| Prospectus [Line Items] |
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| Risk [Text Block] |
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Industry Concentration Risk. The Fund invests at least 25% of its assets in companies in the Pet Industry, which includes manufacturers and distributors of pet food, pet supplies, veterinary pharmaceuticals, veterinary wellness, veterinary and other pet services, pet equipment, pet toys, pet product and services that support Pet Parents regarding their pet activities. As a result, the value of the Fund’s shares will be more susceptible to the factors affecting those particular types of companies, including government regulation, greater price volatility for the overall market, rapid obsolescence of products and services, intense competition, and strong market reactions to pet- or industry-related developments. |
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| Gabelli Pet Parents'(TM) Fund | Nondiversification Risk [Member] |
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| Prospectus [Line Items] |
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| Risk [Text Block] |
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Non-Diversification Risk. As a non-diversified fund, more of the Fund’s assets may be focused in the securities of a small number of issuers, which may make the value of the Fund’s shares more sensitive to changes in the market value of a single issuer or industry than shares of a diversified fund. |
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| Gabelli Pet Parents'(TM) Fund | Largecapitalization Company Risk [Member] |
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| Prospectus [Line Items] |
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| Risk [Text Block] |
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Large-Capitalization Company Risk. Larger, more established companies may be unable to respond quickly to new competitive challenges such as changes in technology and consumer tastes. Many larger companies also may not be able to attain the high growth rate of successful smaller companies, especially during extended periods of economic expansion. |
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| Gabelli Pet Parents'(TM) Fund | Midcapitalization Company Risk [Member] |
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| Prospectus [Line Items] |
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| Risk [Text Block] |
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Mid-Capitalization Company Risk. Mid-cap company risk is the risk that investing in securities of mid-cap companies could entail greater risks than investments in larger, more established companies. Mid-cap companies tend to have narrower product lines, more limited financial resources and a more limited trading market for their stocks, as compared with larger companies. As a result, their stock prices may decline more significantly or more rapidly than stocks of larger companies as market conditions change. |
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| Gabelli Pet Parents'(TM) Fund | Smallcapitalization Company Risk [Member] |
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| Prospectus [Line Items] |
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| Risk [Text Block] |
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Small-Capitalization Company Risk. Investing in securities of small-capitalization companies may involve greater risks than investing in larger, more established issuers. Smaller capitalization companies typically have relatively lower revenues, limited product lines and lack of management depth, and may have a smaller share of the market for their products or services, than larger capitalization companies. The stocks of smaller capitalization companies tend to have less trading volume than stocks of larger capitalization companies. Less trading volume may make it more difficult for the Adviser to sell securities of smaller capitalization companies at quoted market prices. Finally, there are periods when investing in smaller capitalization stocks falls out of favor with investors and the stocks of smaller capitalization companies underperform. |
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| Gabelli Pet Parents'(TM) Fund | Value Investing Risk [Member] |
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| Prospectus [Line Items] |
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| Risk [Text Block] |
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Value Investing Risk. The Fund invests in “value” stocks. Value investing refers to buying securities that the portfolio manager believes are out of favor and/or undervalued in comparison to their peers or their prospects for growth. From time to time, “value” investing falls out of favor with investors. During those periods, the Fund’s relative performance may suffer. |
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| Gabelli Pet Parents'(TM) Fund | Equity Risk [Member] |
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| Prospectus [Line Items] |
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| Risk [Text Block] |
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Equity Risk. Equity risk is the risk that the prices of the securities held by the Fund will fluctuate, sometimes rapidly and unpredictably, due to general market and economic conditions, perceptions regarding the industries in which the companies issuing the securities participate, and the issuer companies’ particular circumstances. Holders of equity securities only have rights to value in the company only after all issuer debts have been paid and they could lose their entire investment in a company that encounters financial difficulty. |
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| Gabelli Pet Parents'(TM) Fund | Management Risk [Member] |
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| Prospectus [Line Items] |
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| Risk [Text Block] |
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Management Risk. If the portfolio manager is incorrect in his assessment of the investment prospects of the securities the Fund holds, then the value of the Fund’s shares may decline. |
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| Gabelli Pet Parents'(TM) Fund | Geopolitical Risk [Member] |
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| Prospectus [Line Items] |
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| Risk [Text Block] |
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Geopolitical Risk. Occurrence of global events, such as war, terrorist attacks, natural disasters, country instability, infectious disease epidemics, pandemics and other public health issues, market instability, debt crises and downgrades, embargoes, tariffs, sanctions and other trade barriers and other governmental trade or market control programs, the potential exit of a country from its respective union and related geopolitical events, may result in market volatility and may have long-lasting impacts on both the U.S. and global financial markets. For example, the U.S. government has imposed, and may in the future further increase, tariffs on certain foreign goods, and some foreign governments have instituted retaliatory tariffs on certain U.S. goods. These and any further actions that may be taken by the U.S. and foreign governments with respect to trade policy may impair the value of your investment in the Fund. |
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| Gabelli Pet Parents'(TM) Fund | Foreign Securities Risk [Member] |
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| Prospectus [Line Items] |
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| Risk [Text Block] |
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Foreign Securities Risk. Investments in foreign securities involve risks relating to political, social, and economic developments abroad, as well as risks resulting from the differences between the regulations to which U.S. and foreign issuers and markets are subject. These risks include expropriation, differing accounting and disclosure standards, currency exchange risks, settlement difficulties, market illiquidity, difficulties enforcing legal rights, and greater transaction costs. These risks are more pronounced in the securities of companies located in emerging markets. |
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| Gabelli Pet Parents'(TM) Fund | Risk Lose Money [Member] |
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| Prospectus [Line Items] |
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| Risk [Text Block] |
When you sell Fund shares, they may be worth more or less than what you paid for them; you may lose money by investing in the Fund.
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| Gabelli Pet Parents'(TM) Fund | Risk Not Insured Depository Institution [Member] |
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| Prospectus [Line Items] |
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| Risk [Text Block] |
An investment in the Fund is not a deposit of the bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
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| Gabelli Pet Parents'(TM) Fund | Risk Nondiversified Status [Member] |
|
| Prospectus [Line Items] |
|
| Risk [Text Block] |
As a non-diversified fund, more of the Fund’s assets may be focused in the securities of a small number of issuers, which may make the value of the Fund’s shares more sensitive to changes in the market value of a single issuer or industry than shares of a diversified fund.
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| Gabelli Food of All Nations Fund |
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| Prospectus [Line Items] |
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| Risk [Text Block] |
You may want to invest in the Fund if:
|
● |
you are a long-term investor |
|
● |
you seek growth of capital |
| |
● |
you want exposure to equity investments in securities of food and beverage companies |
| |
● |
you believe that the market will favor value over growth stocks over the long term |
| |
● |
you wish to include a value strategy as a portion of your overall investments |
The Fund’s share price will fluctuate with changes in the market value of the Fund’s portfolio securities. An investment in the Fund is not a deposit of the bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. When you sell Fund shares, they may be worth more or less than what you paid for them; you may lose money by investing in the Fund.
Investing in the Fund involves the following risks:
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| Gabelli Food of All Nations Fund | Industry Concentration Risk [Member] |
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| Prospectus [Line Items] |
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| Risk [Text Block] |
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Industry Concentration Risk. The Fund invests at least 25% of its assets in companies in the food and beverage industries, which includes companies involved in the manufacture, sale or distribution of crops or raise livestock, operate fisheries or own nontobacco plantations; brewers, distillers and vintners; food distributors and retailers; hypermarkets and super centers; packaged foods and meats; and soft drinks. As a result, the value of the Fund’s shares will be more susceptible to factors affecting those particular types of companies, which may include, among others, governmental regulation, greater price volatility for the overall market, rapid obsolescence of products and services, intense competition, and strong market reactions to consumer tastes and demands. |
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| Gabelli Food of All Nations Fund | Nondiversification Risk [Member] |
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| Prospectus [Line Items] |
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| Risk [Text Block] |
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Non-Diversification Risk. As a non-diversified fund, more of the Fund’s assets may be focused in the securities of a small number of issuers, which may make the value of the Fund’s shares more sensitive to changes in the market value of a single issuer or industry than shares of a diversified fund. |
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| Gabelli Food of All Nations Fund | Largecapitalization Company Risk [Member] |
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| Prospectus [Line Items] |
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| Risk [Text Block] |
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Large-Capitalization Company Risk. Larger, more established companies may be unable to respond quickly to new competitive challenges such as changes in technology and consumer tastes. Many larger companies also may not be able to attain the high growth rate of successful smaller companies, especially during extended periods of economic expansion. |
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| Gabelli Food of All Nations Fund | Midcapitalization Company Risk [Member] |
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| Prospectus [Line Items] |
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| Risk [Text Block] |
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Mid-Capitalization Company Risk. Mid-cap company risk is the risk that investing in securities of mid-cap companies could entail greater risks than investments in larger, more established companies. Mid-cap companies tend to have narrower product lines, more limited financial resources and a more limited trading market for their stocks, as compared with larger companies. As a result, their stock prices may decline more significantly or more rapidly than stocks of larger companies as market conditions change. |
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| Gabelli Food of All Nations Fund | Smallcapitalization Company Risk [Member] |
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| Prospectus [Line Items] |
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| Risk [Text Block] |
| |
● |
Small-Capitalization Company Risk. Investing in securities of small-capitalization companies may involve greater risks than investing in larger, more established issuers. Smaller capitalization companies typically have relatively lower revenues, limited product lines and lack of management depth, and may have a smaller share of the market for their products or services, than larger capitalization companies. The stocks of smaller capitalization companies tend to have less trading volume than stocks of larger capitalization companies. Less trading volume may make it more difficult for the Adviser to sell securities of smaller capitalization companies at quoted market prices. Finally, there are periods when investing in smaller capitalization stocks falls out of favor with investors and the stocks of smaller capitalization companies underperform. |
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| Gabelli Food of All Nations Fund | Value Investing Risk [Member] |
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| Prospectus [Line Items] |
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| Risk [Text Block] |
| |
● |
Value Investing Risk. The Fund invests in “value” stocks. Value investing refers to buying securities that the portfolio manager believes are out of favor and/or undervalued in comparison to their peers or their prospects for growth. From time to time, “value” investing falls out of favor with investors. During those periods, the Fund’s relative performance may suffer. |
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| Gabelli Food of All Nations Fund | Equity Risk [Member] |
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| Prospectus [Line Items] |
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| Risk [Text Block] |
| |
● |
Equity Risk. Equity risk is the risk that the prices of the securities held by the Fund will fluctuate, sometimes rapidly and unpredictably, due to general market and economic conditions, perceptions regarding the industries in which the companies issuing the securities participate, and the issuer companies’ particular circumstances. Holders of equity securities only have rights to value in the company only after all issuer debts have been paid and they could lose their entire investment in a company that encounters financial difficulty. |
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| Gabelli Food of All Nations Fund | Management Risk [Member] |
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| Prospectus [Line Items] |
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| Risk [Text Block] |
| |
● |
Management Risk. If the portfolio manager is incorrect in his assessment of the investment prospects of the securities the Fund holds, then the value of the Fund’s shares may decline. |
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| Gabelli Food of All Nations Fund | Geopolitical Risk [Member] |
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| Prospectus [Line Items] |
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| Risk [Text Block] |
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● |
Geopolitical Risk. Occurrence of global events, such as war, terrorist attacks, natural disasters, country instability, infectious disease epidemics, pandemics and other public health issues, market instability, debt crises and downgrades, embargoes, tariffs, sanctions and other |
trade barriers and other governmental trade or market control programs, the potential exit of a country from its respective union and related geopolitical events, may result in market volatility and may have long-lasting impacts on both the U.S. and global financial markets. For example, the U.S. government has imposed, and may in the future further increase, tariffs on certain foreign goods, and some foreign governments have instituted retaliatory tariffs on certain U.S. goods. These and any further actions that may be taken by the U.S. and foreign governments with respect to trade policy may impair the value of your investment in the Fund.
|
| Gabelli Food of All Nations Fund | Foreign Securities Risk [Member] |
|
| Prospectus [Line Items] |
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| Risk [Text Block] |
| |
● |
Foreign Securities Risk. Investments in foreign securities involve risks relating to political, social, and economic developments abroad, as well as risks resulting from the differences between the regulations to which U.S. and foreign issuers and markets are subject. These risks include expropriation, differing accounting and disclosure standards, currency exchange risks, settlement difficulties, market illiquidity, difficulties enforcing legal rights, and greater transaction costs. |
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| Gabelli Food of All Nations Fund | Consumer Staples [Member] |
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| Prospectus [Line Items] |
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| Risk [Text Block] |
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Consumer Staples. Companies in the consumer staples sector may be adversely affected by changes in the worldwide economy, world events, government regulation, environmental factors, consumer confidence, consumer spending, marketing, competition, demographics and consumer preferences, product trends, and production spending. Companies in this sector are also affected by natural and man-made disasters and political, social, or labor unrest that affect production and distribution of consumer staple products. |
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| Gabelli Food of All Nations Fund | New Fund Risk [Member] |
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| Prospectus [Line Items] |
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| Risk [Text Block] |
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New Fund Risk. The Fund is new with a limited operating history and may have higher expenses. There can be no assurance that the Fund will grow to or maintain an economically viable size. The Fund could cease operations, and investors may be required to liquidate or transfer their assets at a loss. |
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| Gabelli Food of All Nations Fund | Preferred Stock Risk [Member] |
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| Prospectus [Line Items] |
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| Risk [Text Block] |
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Preferred Stock Risk. Preferred stocks are susceptible to general market fluctuations and to volatile increases and decreases in value as market confidence in and perceptions of their issuers change. The dividend on a preferred stock may be changed or omitted by the issuer, and participation in the growth of an issuer may be limited. |
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| Gabelli Food of All Nations Fund | Risk Lose Money [Member] |
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| Prospectus [Line Items] |
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| Risk [Text Block] |
When you sell Fund shares, they may be worth more or less than what you paid for them; you may lose money by investing in the Fund.
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| Gabelli Food of All Nations Fund | Risk Not Insured Depository Institution [Member] |
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| Prospectus [Line Items] |
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| Risk [Text Block] |
An investment in the Fund is not a deposit of the bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
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| Gabelli Food of All Nations Fund | Risk Nondiversified Status [Member] |
|
| Prospectus [Line Items] |
|
| Risk [Text Block] |
As a non-diversified fund, more of the Fund’s assets may be focused in the securities of a small number of issuers, which may make the value of the Fund’s shares more sensitive to changes in the market value of a single issuer or industry than shares of a diversified fund.
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| Gabelli RBI Fund |
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| Prospectus [Line Items] |
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| Risk [Text Block] |
You may want to invest in the Fund if:
|
● |
you are a long-term investor |
|
● |
you seek capital appreciation |
The Fund’s share price will fluctuate with changes in the market value of the Fund’s portfolio securities. An investment in the Fund is not a deposit of the bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. When you sell Fund shares, they may be worth more or less than what you paid for them; you may lose money by investing in the Fund.
Investing in the Fund involves the following risks:
|
| Gabelli RBI Fund | Industry Concentration Risk [Member] |
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| Prospectus [Line Items] |
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| Risk [Text Block] |
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● |
Industry Concentration Risk. The Fund invests at least 25% of its assets in companies in the industrials industry, which includes domestic and foreign services and equipment companies focused on physical asset development, including roads, bridges, and infrastructure. As a result, the value of the Fund’s shares will be more susceptible to factors affecting those particular types of companies, which may include, among others, governmental regulation, greater price volatility for the overall market, rapid obsolescence of products and services, intense competition, and strong market reactions to consumer tastes and demands. |
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| Gabelli RBI Fund | Nondiversification Risk [Member] |
|
| Prospectus [Line Items] |
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| Risk [Text Block] |
|
● |
Non-Diversification Risk. As a non-diversified fund, more of the Fund’s assets may be focused in the securities of a small number of issuers, which may make the value of the Fund’s shares more sensitive to changes in the market value of a single issuer or industry than shares of a diversified fund. |
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| Gabelli RBI Fund | Largecapitalization Company Risk [Member] |
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| Prospectus [Line Items] |
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| Risk [Text Block] |
|
● |
Large-Capitalization Company Risk. Larger, more established companies may be unable to respond quickly to new competitive challenges such as changes in technology and consumer tastes. Many larger companies also may not be able to attain the high growth rate of successful smaller companies, especially during extended periods of economic expansion. |
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| Gabelli RBI Fund | Midcapitalization Company Risk [Member] |
|
| Prospectus [Line Items] |
|
| Risk [Text Block] |
|
● |
Mid-Capitalization Company Risk. Mid-cap company risk is the risk that investing in securities of mid-cap companies could entail greater risks than investments in larger, more established companies. Mid-cap companies tend to have narrower product lines, more limited financial resources and a more limited trading market for their stocks, as compared with larger companies. As a result, their stock prices may decline more significantly or more rapidly than stocks of larger companies as market conditions change. |
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| Gabelli RBI Fund | Smallcapitalization Company Risk [Member] |
|
| Prospectus [Line Items] |
|
| Risk [Text Block] |
|
● |
Small-Capitalization Company Risk. Investing in securities of small-capitalization companies may involve greater risks than investing in larger, more established issuers. Smaller capitalization companies typically have relatively lower revenues, limited product lines and lack of management depth, and may have a smaller share of the market for their products or services, than larger capitalization companies. The stocks of smaller capitalization companies tend to have less trading volume than stocks of larger capitalization companies. Less trading volume may make it more difficult for the Adviser to sell securities of smaller capitalization companies at quoted market prices. Finally, there are periods when investing in smaller capitalization stocks falls out of favor with investors and the stocks of smaller capitalization companies underperform. |
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| Gabelli RBI Fund | Value Investing Risk [Member] |
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| Prospectus [Line Items] |
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| Risk [Text Block] |
|
● |
Value Investing Risk. The Fund invests in “value” stocks. Value investing refers to buying securities that the portfolio manager believes are out of favor and/or undervalued in comparison to their peers or their prospects for growth. From time to time, “value” investing falls out of favor with investors. During those periods, the Fund’s relative performance may suffer. |
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| Gabelli RBI Fund | Equity Risk [Member] |
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| Prospectus [Line Items] |
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| Risk [Text Block] |
|
● |
Equity Risk. Equity risk is the risk that the prices of the securities held by the Fund will fluctuate, sometimes rapidly and unpredictably, due to general market and economic conditions, perceptions regarding the industries in which the companies issuing the securities participate, and the issuer companies’ particular circumstances. Holders of equity securities only have rights to value in the company only after all issuer debts have been paid and they could lose their entire investment in a company that encounters financial difficulty. |
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| Gabelli RBI Fund | Management Risk [Member] |
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| Prospectus [Line Items] |
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| Risk [Text Block] |
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● |
Management Risk. If the portfolio managers are incorrect in their assessment of the investment prospects of the securities the Fund holds, then the value of the Fund’s shares may decline. |
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| Gabelli RBI Fund | Geopolitical Risk [Member] |
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Geopolitical Risk. Occurrence of global events, such as war, terrorist attacks, natural disasters, country instability, infectious disease epidemics, pandemics and other public health issues, market instability, debt crises and downgrades, embargoes, tariffs, sanctions and other trade barriers and other governmental trade or market control programs, the potential exit of a |
country from its respective union and related geopolitical events, may result in market volatility and may have long-lasting impacts on both the U.S. and global financial markets. For example, the U.S. government has imposed, and may in the future further increase, tariffs on certain foreign goods, and some foreign governments have instituted retaliatory tariffs on certain U.S. goods. These and any further actions that may be taken by the U.S. and foreign governments with respect to trade policy may impair the value of your investment in the Fund.
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| Gabelli RBI Fund | Foreign Securities Risk [Member] |
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Foreign Securities Risk. Investments in foreign securities involve risks relating to political, social, and economic developments abroad, as well as risks resulting from the differences between the regulations to which U.S. and foreign issuers and markets are subject. These risks include expropriation, differing accounting and disclosure standards, currency exchange risks, settlement difficulties, market illiquidity, difficulties enforcing legal rights, and greater transaction costs. These risks are more pronounced in the securities of companies located in emerging markets. |
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| Gabelli RBI Fund | New Fund Risk [Member] |
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New Fund Risk. The Fund is new with a limited operating history and may have higher expenses. There can be no assurance that the Fund will grow to or maintain an economically viable size. The Fund could cease operations, and investors may be required to liquidate or transfer their assets at a loss. |
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| Gabelli RBI Fund | Industrials Risk [Member] |
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Industrials Risk. Industrials companies are engaged in the manufacture and distribution of capital goods, such as those used in defense, construction and engineering, companies that manufacture and distribute electrical equipment and industrial machinery and those that provide commercial and transportation services and supplies. Industrials companies may be adversely affected by changes in government regulation, world events and economic conditions. In addition, companies in the industrials sector may be adversely affected by environmental damages, product liability claims and exchange rates. |
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| Gabelli RBI Fund | Sector Risk [Member] |
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Sector Risk. The Fund will invest substantially, or even exclusively, in certain sectors and therefore the Fund carries the risks of those particular sectors. The Fund will invest in domestic and foreign services and equipment companies focused on roads, bridges, and infrastructure. These companies may be adversely affected by changes in government regulation, world events and economic conditions. These companies may also face higher risk of government involvement as physical assets such as roads, bridges, and infrastructure may be considered key components of national security or potential sources of government revenue. In addition, such companies could be adversely affected by commodity price volatility, technological developments and labor relations. |
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| Gabelli RBI Fund | Risk Lose Money [Member] |
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| Risk [Text Block] |
When you sell Fund shares, they may be worth more or less than what you paid for them; you may lose money by investing in the Fund.
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| Gabelli RBI Fund | Risk Not Insured Depository Institution [Member] |
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| Risk [Text Block] |
An investment in the Fund is not a deposit of the bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
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| Gabelli RBI Fund | Risk Nondiversified Status [Member] |
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| Risk [Text Block] |
As a non-diversified fund, more of the Fund’s assets may be focused in the securities of a small number of issuers, which may make the value of the Fund’s shares more sensitive to changes in the market value of a single issuer or industry than shares of a diversified fund.
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