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v3.21.1

Investments (Details 4) - USD ($) | Mar. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Amortized cost | $ 9,180,786 | $ 7,368,815
Estimated fair value | 9,564,055 | 8,194,824
Less Than One Year [Member] |  |
Amortized cost | 500,639 | 0
Estimated fair value | 512,985 | 0
One To Five Years [Member] |  |
Amortized cost | 2,098,011 | 2,598,193
Estimated fair value | 2,244,083 | 2,777,936
Five To Ten Years [Member] |  |
Amortized cost | 1,505,366 | 1,502,603
Estimated fair value | 1,639,444 | 1,727,316
More Than 10 Years [Member] |  |
Amortized cost | 5,076,770 | 3,268,019
Estimated fair value | $ 5,167,543 | $ 3,689,572

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