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17) Fair Value of Financial Instruments: Schedule of Effect of Significant Unobservable Inputs (Details) - USD ($) | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019
Loans Held For Sale |  |
Fair Value Balance | $ 422,772,418 | $ 213,457,632
Fair Value Measurement With Unobservable Inputs Reconciliation, Recurring Basis, Asset And Liability, Range of Inputs minimum | 99.00% | 98.00%
Fair Value Measurement With Unobservable Inputs Reconciliation, Recurring Basis, Asset And Liability, Range of Inputs maximum | 110.00% | 109.00%
Fair Value Measurement With Unobservable Inputs Reconciliation, Recurring Basis, Asset And Liability, Weighted Average | 104.00% | 103.00%
Net Derivatives Loan Commitments |  |
Fair Value Balance | $ 10,128,610 | $ 2,491,233
Fair Value Measurement With Unobservable Inputs Reconciliation, Recurring Basis, Asset And Liability, Range of Inputs minimum | 52.00% | 1.00%
Fair Value Measurement With Unobservable Inputs Reconciliation, Recurring Basis, Asset And Liability, Range of Inputs maximum | 92.00% | 92.00%
Fair Value Measurement With Unobservable Inputs Reconciliation, Recurring Basis, Asset And Liability, Weighted Average | 81.00% | 81.00%
Fixed maturity securities available for sale |  |
Fair Value Balance | $ 2,201,175 | $ 3,216,382

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