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v3.21.1

Investments (Details 1) - USD ($) | Mar. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Amortized cost | $ 139,299,693 | $ 145,045,584
Estimated fair value | 147,585,805 | 157,549,272
Less Than One Year [Member] |  |
Amortized cost | 9,079,054 | 8,559,005
Estimated fair value | 9,181,876 | 8,668,064
One To Five Years [Member] |  |
Amortized cost | 43,059,233 | 44,137,567
Estimated fair value | 46,164,289 | 47,745,430
Five To Ten Years [Member] |  |
Amortized cost | 51,273,291 | 55,508,712
Estimated fair value | 55,781,784 | 63,159,775
More Than 10 Years [Member] |  |
Amortized cost | 11,983,778 | 8,676,409
Estimated fair value | 12,087,935 | 9,314,062
Residential mortgage-backed securities [Member] |  |
Amortized cost | 23,904,337 | 28,163,891
Estimated fair value | $ 24,369,921 | $ 28,661,941

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