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Investments - Schedule of investment income (Details) - USD ($) | 3 Months Ended | 9 Months Ended
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Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023
Investments [Abstract] |  |  |  |
Fixed-maturity securities | $ 1,172,023 | $ 1,245,353 | $ 3,511,243 | $ 3,982,573
Equity securities | 144,950 | 187,018 | 467,588 | 540,788
Cash and cash equivalents | 385,809 | 98,763 | 1,074,000 | 171,015
Other | 0 | 0 | 39,227 | 0
Total | 1,702,782 | 1,531,134 | 5,092,058 | 4,694,376
Investment expenses | 53,109 | 86,774 | 174,929 | 257,168
Net investment income | $ 1,649,673 | $ 1,444,360 | $ 4,917,129 | $ 4,437,208

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