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10) Derivative Instruments: Schedule of Gains and Losses on Derivatives (Details) - USD ($) | 3 Months Ended
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Mar. 31, 2021 | Mar. 31, 2020
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Gain (Loss) on Derivatives, Loan Commitments | $ 314,466 | $ 3,275,032
Gain (Loss) on Derivatives, Call and put options | $ 26,762 | $ (737,860)

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