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Condensed Statements of Cash Flows (Parenthetical) - USD ($)
Mar. 31, 2021
Mar. 31, 2020
Components of Cash and Cash Equivalents:    
Cash and cash equivalents $ 249,255,606 $ 283,950,682
Equity in Trading Accounts:    
Cash and cash equivalents 18,801,522 73,321,026
Total Cash, Cash Equivalents and Equity in Trading Accounts $ 268,057,128 $ 357,271,708