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Investments, Trading Securities (Details) - USD ($)
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Dec. 31, 2020
Trading Securities [Abstract]      
Fair value, derivatives included in trading security assets $ 0   $ 0
Fair value, derivative included in trading security liabilities 2,791   $ 12,219
Trading Revenue Charged to Net Investment Income from Trading Securities [Abstract]      
Net unrealized gains (losses) 2,734 $ 0  
Net realized gains (losses) 10,954 0  
Net unrealized and realized gains (losses) $ 13,688 $ 0