v3.25.4
Performance Management
Jan. 28, 2026
Gabelli Media Mogul Fund  
Prospectus [Line Items]  
Bar Chart and Performance Table [Heading] Performance
Performance Narrative [Text Block]

An exchange traded managed fund (“Predecessor Fund”) managed by the Adviser was reorganized into the Fund as of the date the Fund commenced operations (April 1, 2019). The Predecessor Fund had an investment objective and strategies that were, in all material respects, the same as those of the Fund, and was managed in a manner that, in all material respects, complied with the investment guidelines and restrictions of the Fund.

 

The Fund’s performance for periods prior to the commencement of operations on April 1, 2019, is that of the Predecessor Fund.

 

The bar chart and table that follow provide an indication of the risks of investing in the Fund by showing changes in the Fund’s performance from year to year and by showing how the Fund’s average annual returns for one year, five years, and ten years, if applicable, compared with those of a broad based securities market index. As with all mutual funds, the Fund’s past performance (before and after taxes) does not predict how the Fund will perform in the future. Updated information on the Fund’s results can be obtained by visiting www.gabelli.com.

Performance Past Does Not Indicate Future [Text] As with all mutual funds, the Fund’s past performance (before and after taxes) does not predict how the Fund will perform in the future.
Performance Information Illustrates Variability of Returns [Text] The bar chart and table that follow provide an indication of the risks of investing in the Fund by showing changes in the Fund’s performance from year to year and by showing how the Fund’s average annual returns for one year, five years, and ten years, if applicable, compared with those of a broad based securities market index.
Bar Chart [Heading] MEDIA MOGUL FUND (Total returns for Class I Shares for the Years Ended December 31)
Bar Chart [Table]

 

Bar Chart Closing [Text Block]

During the calendar years shown in the bar chart, the highest return for a quarter was 23.20% (quarter ended December 31, 2020) and the lowest return for a quarter was (33.30)% (quarter ended March 31, 2020).

Highest Quarterly Return, Label [Optional Text] highest return
Highest Quarterly Return 23.20%
Highest Quarterly Return, Date Dec. 31, 2020
Lowest Quarterly Return, Label [Optional Text] lowest return
Lowest Quarterly Return (33.30%)
Lowest Quarterly Return, Date Mar. 31, 2020
Performance Table Heading Average Annual Total Returns (for the years ended December 31, 2025, with maximum sales charges, if applicable)
Performance Table Uses Highest Federal Rate 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 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 their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts, including “Roth” IRAs and SEP IRAs (collectively, “IRAs”). After-tax returns are shown for Class I shares only and will vary for Class A shares.
Performance Table Explanation after Tax Higher In some instances, the “Return After Taxes on Distributions and Sale of Fund Shares” may be greater than “Return Before Taxes” because the investor is assumed to be able to use the capital loss from the sale of Fund shares to offset other taxable gains.
Performance [Table]
Average Annual Total Returns
(for the years ended December 31, 2025,
with maximum sales charges, if applicable)
  Past
One Year
    Past
Five Years
    Since
Inception
 
Media Mogul Fund Class I Shares (first issued December 1, 2016)                                    
Return Before Taxes       22.51%           (0.27)%           1.87%    
Return After Taxes on Distributions       22.35%           (0.03)%           1.69%    
Return After Taxes on Distributions and Sale of Fund Shares       13.42%           0.18%           1.44%    
S&P 500 Index (reflects no deduction for fees, expenses or taxes)*       17.88%           14.42%           15.29%    

 

 
* The S&P 500 Index is a widely recognized, unmanaged index of common stock prices. Investors cannot invest directly in the S&P 500 Index.
Performance Table Closing [Text Block]

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. In some instances, the “Return After Taxes on Distributions and Sale of Fund Shares” may be greater than “Return Before Taxes” because the investor is assumed to be able to use the capital loss from the sale of Fund shares to offset other taxable gains. 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 their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts, including “Roth” IRAs and SEP IRAs (collectively, “IRAs”). After-tax returns are shown for Class I shares only and will vary for Class A shares.

Performance Availability Website Address [Text] www.gabelli.com
Gabelli Pet Parents'(TM) Fund  
Prospectus [Line Items]  
Bar Chart and Performance Table [Heading] Performance
Performance Narrative [Text Block]

An exchange traded managed fund (the “Predecessor Fund”) managed by the Adviser was reorganized into the Fund as of the date the Fund commenced operations (April 1, 2019). The Predecessor Fund had an investment objective and strategies that were, in all material respects, the same as those of the Fund, and was managed in a manner that, in all material respects, complied with the investment guidelines and restrictions of the Fund.

 

The Fund’s performance for periods prior to the commencement of operations on April 1, 2019, is that of the Predecessor Fund.

The bar chart and table that follow provide an indication of the risk of investing in the Fund by showing changes in the Fund’s performance from year to year and by showing how the Fund’s average annual returns for one year, five years, and ten years, if applicable, compared with those of a broad-based securities market index. As with all mutual funds, the Fund’s past performance (before and after taxes) does not predict how the Fund will perform in the future. Updated information on the Fund’s results can be obtained by visiting www.gabelli.com.

Performance Past Does Not Indicate Future [Text] As with all mutual funds, the Fund’s past performance (before and after taxes) does not predict how the Fund will perform in the future.
Performance Information Illustrates Variability of Returns [Text] The bar chart and table that follow provide an indication of the risk of investing in the Fund by showing changes in the Fund’s performance from year to year and by showing how the Fund’s average annual returns for one year, five years, and ten years, if applicable, compared with those of a broad-based securities market index.
Bar Chart [Heading] PET PARENTS’ FUND (Total returns for Class I Shares for the Years Ended December 31)
Bar Chart [Table]

 

Years Returns
2019
2020
2021
2022
2023
2024
2025

 

Bar Chart Closing [Text Block]

During the calendar year shown in the bar chart, the highest return for a quarter was 24.83% (quarter ended June 30, 2020) and the lowest return for a quarter was (17.26)% (quarter ended June 30, 2022).

Highest Quarterly Return, Label [Optional Text] highest return
Highest Quarterly Return 24.83%
Highest Quarterly Return, Date Jun. 30, 2020
Lowest Quarterly Return, Label [Optional Text] lowest return
Lowest Quarterly Return (17.26%)
Lowest Quarterly Return, Date Jun. 30, 2022
Performance Table Heading Average Annual Total Returns (for the years ended December 31, 2025, with the maximum sales charges, if applicable)
Performance Table Uses Highest Federal Rate 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 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 their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts, including “Roth” IRAs and SEP IRAs (collectively, “IRAs”). After-tax returns are shown for Class I shares only and will vary for Class A shares.
Performance Table Explanation after Tax Higher In some instances, the “Return After Taxes on Distributions and Sale of Fund Shares” may be greater than “Return Before Taxes” because the investor is assumed to be able to use the capital loss from the sale of Fund shares to offset other taxable gains.
Performance [Table]
Average Annual Total Returns
(for the years ended December 31, 2025,
with the maximum sales charges, if applicable)
  Past
One Year
    Past
Five Years
    Since
Inception
 
Pet Parents’ Fund Class I shares (first issued June 19, 2018)                                    
Return Before Taxes       (2.88)%           0.14%           6.05%    
Return After Taxes on Distributions       (2.97)%           (0.42)%           5.64%    
Return After Taxes on Distributions and Sale of Fund Shares       (1.64)%           0.05%           4.76%    
Class A Shares (first issued May 17, 2022)*                                    
Return Before Taxes       (8.64)%           (1.22)%           5.09%    
S&P 500 Index (reflects no deduction for fees, expenses or taxes)**       17.88%           14.42%           14.65%    

 

 
* The Class I Share NAVs are used to calculate performance for the periods prior to the issuance of Class A Shares on May 17, 2022.
** The S&P 500 Index is a widely recognized, unmanaged index of common stock prices. Investors cannot invest directly in the S&P 500 Index.
Performance Table Closing [Text Block]

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. In some instances, the “Return After Taxes on Distributions and Sale of Fund Shares” may be greater than “Return Before Taxes” because the investor is assumed to be able to use the capital loss from the sale of Fund shares to offset other taxable gains. 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 their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts, including “Roth” IRAs and SEP IRAs (collectively, “IRAs”). After-tax returns are shown for Class I shares only and will vary for Class A shares.

Performance Availability Website Address [Text] www.gabelli.com
Gabelli Food of All Nations Fund  
Prospectus [Line Items]  
Bar Chart and Performance Table [Heading] Performance
Performance Narrative [Text Block]

The Fund has not yet commenced operations and, therefore, performance information is not yet available. Performance information will be available after the Fund has been in operation for one calendar year.

Performance One Year or Less [Text] The Fund has not yet commenced operations and, therefore, performance information is not yet available. Performance information will be available after the Fund has been in operation for one calendar year.
Gabelli RBI Fund  
Prospectus [Line Items]  
Bar Chart and Performance Table [Heading] Performance
Performance Narrative [Text Block]

The Fund has not yet commenced operations and, therefore, performance information is not yet available. Performance information will be available after the Fund has been in operation for one calendar year.

Performance One Year or Less [Text] The Fund has not yet commenced operations and, therefore, performance information is not yet available. Performance information will be available after the Fund has been in operation for one calendar year.