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Investments (Details 4) - USD ($)	Jun. 30, 2021	Dec. 31, 2020
Amortized cost	$ 9,822,799	$ 7,368,815
Estimated fair value	10,458,317	8,194,824
Less Than One Year [Member]
Amortized cost	899,352	0
Estimated fair value	916,678	0
One To Five Years [Member]
Amortized cost	1,699,763	2,598,193
Estimated fair value	1,822,853	2,777,936
Five To Ten Years [Member]
Amortized cost	1,508,198	1,502,603
Estimated fair value	1,701,590	1,727,316
More Than 10 Years [Member]
Amortized cost	5,715,486	3,268,019
Estimated fair value	$ 6,017,196	$ 3,689,572

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