v3.26.1
FEES PAID BY THE FUND AND RELATED PARTY TRANSACTIONS (Details) - USD ($)
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2026
FEES PAID BY THE FUND AND RELATED PARTY TRANSACTIONS          
Percentage of management fee in average daily total net assets     0.60%    
Registration fees     $ 0 $ 0  
Estimated directors' fees and expenses $ 3,216 $ 1,649 $ 9,198 5,412  
Fee percentage     0.015%    
Licensing fee incurred $ 2,045 $ 1,535 $ 3,756 $ 3,313  
Scenario Forecast          
FEES PAID BY THE FUND AND RELATED PARTY TRANSACTIONS          
Estimated directors' fees and expenses         $ 12,000
Investor tax reporting cost         170,000
USL and the Related Public Funds | Scenario Forecast          
FEES PAID BY THE FUND AND RELATED PARTY TRANSACTIONS          
Estimated directors' fees and expenses         $ 881,000