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10) Derivative Instruments: Schedule of Gains and Losses on Derivatives (Details) - USD ($) | 3 Months Ended | 6 Months Ended
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Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019
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Gain (Loss) on Derivatives, Loan Commitments | $ 5,278,099 | $ 603,797 | $ 8,553,132 | $ 1,536,324
Gain (Loss) on Derivatives, Call and put options | $ 828,205 | $ 114,939 | $ 90,346 | $ 404,967

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