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10) Derivative Instruments (Tables) | 3 Months Ended
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Mar. 31, 2021
Table Text Block Supplement [Abstract] |
Schedule of Derivative Assets at Fair Value | The following table shows the notional amount and fair value of derivatives as of March 31, 2021 and December 31, 2020.
| Fair Values and Notional Values of Derivative Instruments
|  |  | March 31, 2021 |  | December 31, 2020
| Balance Sheet Location |  | Notional Amount |  | Asset Fair Value |  | Liability Fair Value |  | Notional Amount | Asset Fair Value |  | Liability Fair Value
Derivatives not designated as hedging instruments: |  |  |  |  |  |  |  |  |  |  |  |
Loan commitments | Other assets and Other liabilities |  | $ 817,802,853 |  | $ 10,671,623 |  | $ 228,547 |  | $ 659,245,038 | $ 12,592,672 |  | $ 2,464,062
Call options | Other liabilities |  | 2,042,500 |  | - |  | 79,567 |  | 1,873,200 | - |  | 43,097
Total |  |  | $ 819,845,353 |  | $ 10,671,623 |  | $ 308,114 |  | $ 661,118,238 | $ 12,592,672 |  | $ 2,507,159
Schedule of Gains and Losses on Derivatives | The following table shows the gains and losses on derivatives for the periods presented.
|  |  |  | Net Amount Gain (Loss)
|  |  |  | Three Months Ended March 31
Derivative |  | Classification |  | 2021 |  | 2020
Loan commitments |  | Mortgage fee income |  | $ 314,466 |  | $ 3,275,032
Call and put options |  | Gains on investments and other assets |  | $ 26,762 |  | $ (737,860)

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