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FINANCIAL INSTRUMENTS, OFF-BALANCE SHEET RISKS AND CONTINGENCIES (Details) - USD ($)
Jun. 30, 2019
Dec. 31, 2018
FINANCIAL INSTRUMENTS, OFF-BALANCE SHEET RISKS AND CONTINGENCIES    
Money Market Funds, at Carrying Value $ 30,000,000 $ 5,950,000
Cash Deposits and Investments In Treasuries $ 58,855,567 $ 74,107,642