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Mortgage Servicing Rights: Schedule of Mortgage Servicing Rights (Details) - USD ($) | Jun. 30, 2021 | Dec. 31, 2020
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Goodwill and Intangible Assets Disclosure [Abstract] |  |  |
Balance before valuation allowance at beginning of year |  | $ 35,210,516 | $ 17,155,529
MSR additions resulting from loan sales |  | 18,286,569 | 29,896,465
Amortization (1) | [1] | (6,772,539) | (11,841,478)
Application of valuation allowance to write down MSRs with other than temporary impairment |  |  |
Balance before valuation allowance at end of period |  | 46,724,546 | 35,210,516
Balance at beginning of year |  | 0 | 0
Additions |  | 0 | 0
Application of valuation allowance to write down MSRs with other than temporary impairment |  | 0 | 0
Balance at end of period |  | 0 | 0
Mortgage servicing rights, net |  | 46,724,546 | 35,210,516
Estimated fair value of MSRs at end of period |  | $ 58,838,077 | $ 38,702,358
[1] | Included in other expenses on the condensed consolidated statements of earnings

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