Investments - Gross Investment Gains and Losses before Applicable Income Taxes (Details) - USD ($) |
3 Months Ended | 6 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
Dec. 31, 2025 |
|
| Investments [Abstract] | |||||
| Gross realized gains | $ 150,000 | $ 1,048,000 | $ 221,000 | $ 1,102,000 | |
| Gross realized losses | 1,632,000 | 1,730,000 | 1,634,000 | 1,730,000 | |
| Net realized losses | (1,482,000) | (682,000) | (1,413,000) | (628,000) | |
| Gross unrealized gains on equity securities | 21,326,000 | $ 17,193,000 | |||
| Gross unrealized losses on equity securities | 0 | $ (61,000) | |||
| Net investment gains | 3,267,408 | 1,543,721 | 2,788,184 | 1,072,860 | |
| Fixed Maturities [Member] | |||||
| Investments [Abstract] | |||||
| Gross realized gains | 150,000 | 361,000 | 221,000 | 415,000 | |
| Gross realized losses | 1,502,000 | 1,730,000 | 1,504,000 | 1,730,000 | |
| Credit impairment charges | (32,000) | (23,000) | 7,000 | 14,000 | |
| Equity Securities [Member] | |||||
| Investments [Abstract] | |||||
| Gross realized gains | 0 | 687,000 | 0 | 687,000 | |
| Gross realized losses | 130,000 | 0 | 130,000 | 0 | |
| Gross unrealized gains on equity securities | 4,781,000 | 2,249,000 | 4,194,000 | 1,738,000 | |
| Gross unrealized losses on equity securities | $ 0 | $ 0 | $ 0 | $ (51,000) | |