v3.26.1
Average Annual Total Returns
12 Months Ended 60 Months Ended 82 Months Ended 88 Months Ended
Apr. 30, 2026
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
BlueStar Quantum Computing and Machine Learning Index® (reflects no deduction for fees, expenses, or taxes)          
Prospectus [Line Items]          
Average Annual Return, Label [Optional Text] BlueStar® Quantum Computing and Machine Learning Index(reflects no deduction for fees, expenses, or taxes)        
Average Annual Return, Percent   37.04% 23.27%   24.04%
S&P 500® TR Index (reflects no deduction for fees, expenses or taxes)          
Prospectus [Line Items]          
Average Annual Return, Label [Optional Text] S&P 500® TR Index(reflects no deduction for fees, expenses, or taxes)        
Average Annual Return, Percent   17.88% 14.42% 15.85% 14.29%
BlueStar Connective Technologies Index (reflects no deduction for fees, expenses, or taxes)          
Prospectus [Line Items]          
Average Annual Return, Label [Optional Text] [1],[2] BlueStar® Connective Technologies Index1,2(reflects no deduction for fees, expenses, or taxes)        
Average Annual Return, Percent [1],[2]   35.28% 15.20% 16.27%  
Defiance Quantum ETF Class          
Prospectus [Line Items]          
Average Annual Return, Label [Optional Text] Return Before Taxes        
Average Annual Return, Percent   36.35% 22.62%   23.41%
Performance Inception Date Sep. 04, 2018        
Defiance Quantum ETF Class | After Taxes on Distributions          
Prospectus [Line Items]          
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions        
Average Annual Return, Percent   35.91% 22.33%   23.15%
Defiance Quantum ETF Class | After Taxes on Distributions and Sales          
Prospectus [Line Items]          
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions and Sale of Fund Shares        
Average Annual Return, Percent   21.66% 18.51%   19.83%
Defiance Space and Connective Tech ETF Class          
Prospectus [Line Items]          
Average Annual Return, Label [Optional Text] Return Before Taxes        
Average Annual Return, Percent   34.76% 15.03% 16.04%  
Performance Inception Date Mar. 04, 2019        
Defiance Space and Connective Tech ETF Class | After Taxes on Distributions          
Prospectus [Line Items]          
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions        
Average Annual Return, Percent   34.55% 14.72% 15.73%  
Defiance Space and Connective Tech ETF Class | After Taxes on Distributions and Sales          
Prospectus [Line Items]          
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions and Sale of Shares        
Average Annual Return, Percent   20.69% 12.02% 13.14%  
[1] Effective June 29, 2026, the Fund’s investment objective changed to track the performance, before fees and expenses, of the BlueStar® Space and Connective Technologies Index. Effective September 23, 2024, the Fund’s investment objective changed to track the performance, before fees and expenses, of the BlueStar® Connective Technologies Index. Prior to September 23, 2024, the Fund’s investment objective was to track the total return performance, before fees and expenses, of the BlueStar 5G Communications Index. Performance shown for periods prior to September 23, 2024, is that of the BlueStar 5G Communications Index.
[2] Performance shown for periods prior to September 23, 2024, is that of the BlueStar 5G Communications Index.