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Fair Values of Financial Instruments - Financial Instruments Carried at Fair Value Measured on a Recurring Basis (Details) - Recurring [Member] - USD ($) $ in Thousands | Sep. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Fair Values of Financial Instruments [Abstract] |  |
Fixed maturities | $ 235,469 | $ 212,612
Equity securities | 10,432 | 7,900
Cash equivalents | 17,903 | 14,948
Assets at fair value | 263,804 | 235,460
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] |  |
Fair Values of Financial Instruments [Abstract] |  |
Fixed maturities | 0 | 0
Equity securities | 10,239 | 7,711
Cash equivalents | 17,903 | 14,948
Assets at fair value | 28,142 | 22,659
Significant Other Observable Inputs (Level 2) [Member] |  |
Fair Values of Financial Instruments [Abstract] |  |
Fixed maturities | 235,469 | 212,612
Equity securities | 0 | 0
Cash equivalents | 0 | 0
Assets at fair value | 235,469 | 212,612
Significant Unobservable Inputs (Level 3) [Member] |  |
Fair Values of Financial Instruments [Abstract] |  |
Fixed maturities | 0 | 0
Equity securities | 193 | 189
Cash equivalents | 0 | 0
Assets at fair value | $ 193 | $ 189

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- Definition Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 11 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-11 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 11 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-11 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-10 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
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