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Investments (Details 4) - Held-to-maturity Securities [Member] - USD ($)	Jun. 30, 2022	Dec. 31, 2021
Estimated fair value	$ 6,913,536	$ 8,753,159
Amortized cost	7,768,218	8,266,334
Less Than One Year [Member]
Estimated fair value	497,110	1,008,180
Amortized cost	459,032	994,712
One To Five Years [Member]
Estimated fair value	1,246,690	1,290,465
Amortized cost	1,246,206	1,205,829
Five To Ten Years [Member]
Estimated fair value	1,370,950	1,648,808
Amortized cost	1,519,749	1,513,942
More Than 10 Years [Member]
Estimated fair value	3,798,786	4,805,706
Amortized cost	$ 4,543,231	$ 4,551,851

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