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Derivative Instruments: Schedule of Derivative Assets at Fair Value (Details) - USD ($) | Jun. 30, 2021 | Dec. 31, 2020
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Loan Commitments |  |
Subsidiary, Sale of Stock [Line Items] |  |
Derivative, Notional Amount | $ 923,793,977 | $ 659,245,038
Derivative Asset, Notional Amount | 10,704,411 | 1,873,200
Derivative Liability, Notional Amount | 744,198 | 661,118,238
Call Options |  |
Subsidiary, Sale of Stock [Line Items] |  |
Derivative, Notional Amount | 714,000 | 12,592,672
Derivative Asset, Notional Amount |  |
Derivative Liability, Notional Amount | 12,795 | 12,592,672
Net Derivatives Loan Commitments |  |
Subsidiary, Sale of Stock [Line Items] |  |
Derivative, Notional Amount | 924,507,977 | 2,464,062
Derivative Asset, Notional Amount | 10,704,411 | 43,097
Derivative Liability, Notional Amount | $ 756,993 | $ 2,507,159

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- Definition Nominal or face amount used to calculate payments on the derivative liability. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5579245-113959 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5580258-113959 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5579245-113959 + Details
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