v3.26.1
Average Annual Total Returns - Gabelli Global Technology Leaders ETF
12 Months Ended 48 Months Ended
Jul. 06, 2026
Dec. 31, 2025
Dec. 31, 2025
Prospectus [Line Items]      
Average Annual Return, Percent   19.78% 7.24%
Performance Inception Date Jan. 03, 2022    
After Taxes on Distributions      
Prospectus [Line Items]      
Average Annual Return, Percent   19.27% 6.87%
After Taxes on Distributions and Sales      
Prospectus [Line Items]      
Average Annual Return, Percent   11.71% 5.46%
S&P 500 Index (reflects no deduction for fees, expenses or taxes)      
Prospectus [Line Items]      
Average Annual Return, Percent   17.88% 11.53%