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FINANCIAL INSTRUMENTS, OFF-BALANCE SHEET RISKS AND CONTINGENCIES (Details) - USD ($)
Jun. 30, 2024
Dec. 31, 2023
Jun. 30, 2023
FINANCIAL INSTRUMENTS, OFF-BALANCE SHEET RISKS AND CONTINGENCIES      
Money market funds $ 55,785,000 $ 76,785,000  
Cash deposits and investments in Treasuries 70,705,638 $ 54,151,411  
Future contract      
FINANCIAL INSTRUMENTS, OFF-BALANCE SHEET RISKS AND CONTINGENCIES      
Future contract notional value $ 130,505,871   $ 215,207,990