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Investments (Details 4) - Held-to-maturity Securities [Member] - USD ($)	Mar. 31, 2022	Dec. 31, 2021
Estimated fair value	$ 7,629,300	$ 8,753,159
Amortized cost	7,765,138	8,266,334
One To Five Years [Member]
Estimated fair value	1,262,780	1,290,465
Amortized cost	1,206,159	1,205,829
Five To Ten Years [Member]
Estimated fair value	1,494,773	1,648,808
Amortized cost	1,516,810	1,513,942
More Than 10 Years [Member]
Estimated fair value	4,369,952	4,805,706
Amortized cost	4,547,574	4,551,851
Less Than One Year [Member]
Estimated fair value	501,795	1,008,180
Amortized cost	$ 494,595	$ 994,712

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