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FINANCIAL INSTRUMENTS, OFF-BALANCE SHEET RISKS AND CONTINGENCIES (Details) - USD ($)
Sep. 30, 2020
Dec. 31, 2019
FINANCIAL INSTRUMENTS, OFF-BALANCE SHEET RISKS AND CONTINGENCIES    
Cash investments in money market funds $ 1,000,000 $ 500,000
Deposits in domestic and foreign financial institutions $ 4,998,607 $ 3,294,705