v3.26.1
Annual Total Returns
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Gabelli Financial Services Opportunities ETF        
Prospectus [Line Items]        
Annual Return [Percent] 3.55% 44.59% 38.83%  
Gabelli Growth Innovators ETF        
Prospectus [Line Items]        
Annual Return [Percent] 18.13% 41.83% 42.16% (43.86%)
Gabelli Love Our Planet & People ETF        
Prospectus [Line Items]        
Annual Return [Percent] 22.30% 9.95% 4.85% (15.08%)
Gabelli Global Technology Leaders ETF        
Prospectus [Line Items]        
Annual Return [Percent] 19.78% 10.99% 18.23%  
Gabelli Commercial Aerospace and Defense ETF        
Prospectus [Line Items]        
Annual Return [Percent] 39.34% 22.24% 14.14%