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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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