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v3.21.2

Investments (Details 1) - USD ($) | Jun. 30, 2021 | Dec. 31, 2020
--- | --- | ---
Amortized cost | $ 128,897,850 | $ 145,045,584
Estimated fair value | 137,916,652 | 157,549,272
Less Than One Year [Member] |  |
Amortized cost | 7,198,128 | 8,559,005
Estimated fair value | 7,263,139 | 8,668,064
One To Five Years [Member] |  |
Amortized cost | 43,761,291 | 44,137,567
Estimated fair value | 47,227,835 | 47,745,430
Five To Ten Years [Member] |  |
Amortized cost | 44,705,071 | 55,508,712
Estimated fair value | 49,293,510 | 63,159,775
More Than 10 Years [Member] |  |
Amortized cost | 11,953,997 | 8,676,409
Estimated fair value | 12,386,954 | 9,314,062
Residential mortgage-backed securities [Member] |  |
Amortized cost | 21,279,363 | 28,163,891
Estimated fair value | $ 21,745,214 | $ 28,661,941

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