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FINANCIAL INSTRUMENTS, OFF-BALANCE SHEET RISKS AND CONTINGENCIES (Details) - USD ($)
Jun. 30, 2025
Dec. 31, 2024
Jun. 30, 2024
FINANCIAL INSTRUMENTS, OFF-BALANCE SHEET RISKS AND CONTINGENCIES      
Money market funds $ 45,000,000 $ 75,000,000  
Cash deposits 69,180,605 $ 36,818,839  
Future contract      
FINANCIAL INSTRUMENTS, OFF-BALANCE SHEET RISKS AND CONTINGENCIES      
Future contract notional value $ 97,447,707   $ 130,505,871