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v3.23.1

Investments (Details 4) - USD ($) | Mar. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Amortized cost | $ 7,765,096 | $ 7,766,140
Estimated fair value | 6,825,609 | 6,600,388
Less Than One Year [Member] |  |
Amortized cost | 708,744 | 708,535
Estimated fair value | 747,483 | 743,575
One To Five Years [Member] |  |
Amortized cost | 1,120,700 | 1,120,507
Estimated fair value | 1,098,253 | 1,088,522
Five To Ten Years [Member] |  |
Amortized cost | 1,405,680 | 1,402,704
Estimated fair value | 1,215,945 | 1,200,720
More Than 10 Years [Member] |  |
Amortized cost | 4,529,972 | 4,534,394
Estimated fair value | $ 3,763,928 | $ 3,567,571

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