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v3.21.2

Investments (Details 1) - USD ($) | Sep. 30, 2021 | Dec. 31, 2020
--- | --- | ---
Amortized cost | $ 145,435,406 | $ 145,045,584
Estimated fair value | 153,289,242 | 157,549,272
Less Than One Year [Member] |  |
Amortized cost | 4,161,386 | 8,559,005
Estimated fair value | 4,184,568 | 8,668,064
One To Five Years [Member] |  |
Amortized cost | 40,877,043 | 44,137,567
Estimated fair value | 43,947,314 | 47,745,430
Five To Ten Years [Member] |  |
Amortized cost | 42,375,537 | 55,508,712
Estimated fair value | 46,545,324 | 63,159,775
More Than 10 Years [Member] |  |
Amortized cost | 17,032,902 | 8,676,409
Estimated fair value | 17,306,960 | 9,314,062
Residential mortgage-backed securities [Member] |  |
Amortized cost | 40,988,538 | 28,163,891
Estimated fair value | $ 41,305,076 | $ 28,661,941

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