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Net carrying amount of held to maturity securities (Details) - USD ($) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Net Investment Income [Line Items] |  |  |  |
Gross investment income | $ 17,185,950 | $ 16,287,935 | $ 34,896,919 | $ 32,968,164
Investment Income, Investment Expense | (3,008,632) | (3,325,190) | (6,425,714) | (6,604,920)
Net investment income | 14,177,318 | 12,962,745 | 28,471,205 | 26,363,244
Fixed Maturities |  |  |  |
Net Investment Income [Line Items] |  |  |  |
Gross investment income | 2,698,011 | 3,143,072 | 5,522,122 | 6,067,786
Equity Securities |  |  |  |
Net Investment Income [Line Items] |  |  |  |
Gross investment income | 106,041 | 111,122 | 234,270 | 203,164
Mortgage Loans Real Estate |  |  |  |
Net Investment Income [Line Items] |  |  |  |
Gross investment income | 6,902,466 | 5,582,152 | 12,986,883 | 11,236,042
Real Estate |  |  |  |
Net Investment Income [Line Items] |  |  |  |
Gross investment income | 3,002,650 | 2,787,881 | 6,045,479 | 5,941,267
Policy Student and Other Loans |  |  |  |
Net Investment Income [Line Items] |  |  |  |
Gross investment income | 232,135 | 257,527 | 464,488 | 491,492
Insurance Assignments |  |  |  |
Net Investment Income [Line Items] |  |  |  |
Gross investment income | 4,171,318 | 4,383,398 | 9,517,047 | 8,682,602
Other Investments |  |  |  |
Net Investment Income [Line Items] |  |  |  |
Gross investment income | 39,299 | 398 | 53,006 | 25,421
Cash and Cash Equivalents |  |  |  |
Net Investment Income [Line Items] |  |  |  |
Gross investment income | 34,030 | 22,385 | 73,624 | 320,390
Fixed Maturity Securities [Member] |  |  |  |
Net Investment Income [Line Items] |  |  |  |
Proceeds received from sale of fixed maturity available for sale securities | 1,163,366 | 2,107,581 | 1,982,931 | 2,753,331
Gross realized gains | 149,338 | 53,928 | 209,132 | 133,339
Gross realized losses | $ 0 | $ 137 | $ 0 | $ 137

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