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Investments - Schedule of Available-For-Sale Securities with Unrealized Losses (Details) | 9 Months Ended | 12 Months Ended
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Sep. 30, 2025 USD ($) position | Dec. 31, 2024 USD ($) position
U.S. Treasury securities and obligations of U.S. government corporations and agencies |  |
Net Investment Income [Line Items] |  |
Estimated Fair Value - less than 12 months | $ 0 | $ 0
Unrealized Losses - less than 12 months | $ 0 | $ 0
Number of Positions Held - less than 12 months | position | 0 | 0
Estimated Fair Value - 12 months or more | $ 0 | $ 0
Unrealized Losses - 12 months or more | $ 0 | $ 0
Number of Positions Held - 12 months or more | position | 0 | 0
Estimated Fair Value - total | $ 0 | $ 0
Unrealized Losses - total | 0 | 0
Political subdivisions of States, Territories and Possessions |  |
Net Investment Income [Line Items] |  |
Estimated Fair Value - less than 12 months | 0 | 7,705,370
Unrealized Losses - less than 12 months | $ 0 | $ (73,589)
Number of Positions Held - less than 12 months | position | 0 | 6
Estimated Fair Value - 12 months or more | $ 13,917,340 | $ 13,167,726
Unrealized Losses - 12 months or more | $ (2,551,987) | $ (3,324,491)
Number of Positions Held - 12 months or more | position | 12 | 12
Estimated Fair Value - total | $ 13,917,340 | $ 20,873,096
Unrealized Losses - total | (2,551,987) | (3,398,080)
Corporate and other bonds industrial and miscellaneous |  |
Net Investment Income [Line Items] |  |
Estimated Fair Value - less than 12 months | 15,265,950 | 51,411,296
Unrealized Losses - less than 12 months | $ (41,640) | $ (1,024,461)
Number of Positions Held - less than 12 months | position | 17 | 60
Estimated Fair Value - 12 months or more | $ 48,232,706 | $ 55,381,083
Unrealized Losses - 12 months or more | $ (2,890,680) | $ (4,690,597)
Number of Positions Held - 12 months or more | position | 57 | 68
Estimated Fair Value - total | $ 63,498,656 | $ 106,792,379
Unrealized Losses - total | (2,932,320) | (5,715,058)
Residential mortgage and other asset backed securities |  |
Net Investment Income [Line Items] |  |
Estimated Fair Value - less than 12 months | 6,226,193 | 19,315,521
Unrealized Losses - less than 12 months | $ (38,253) | $ (209,890)
Number of Positions Held - less than 12 months | position | 8 | 22
Estimated Fair Value - 12 months or more | $ 34,133,806 | $ 35,206,442
Unrealized Losses - 12 months or more | $ (4,786,312) | $ (6,211,339)
Number of Positions Held - 12 months or more | position | 36 | 36
Estimated Fair Value - total | $ 40,359,999 | $ 54,521,963
Unrealized Losses - total | (4,824,565) | (6,421,229)
Total fixed-maturity securities |  |
Net Investment Income [Line Items] |  |
Estimated Fair Value - less than 12 months | 21,492,143 | 78,432,187
Unrealized Losses - less than 12 months | $ (79,893) | $ (1,307,940)
Number of Positions Held - less than 12 months | position | 25 | 88
Estimated Fair Value - 12 months or more | $ 96,283,852 | $ 103,755,251
Unrealized Losses - 12 months or more | $ (10,228,979) | $ (14,226,427)
Number of Positions Held - 12 months or more | position | 105 | 116
Estimated Fair Value - total | $ 117,775,995 | $ 182,187,438
Unrealized Losses - total | $ (10,308,872) | $ (15,534,367)

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(2)(a)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477250/944-220-S99-1 + Details
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