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Note 2 - Investments (Tables) | 3 Months Ended
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Mar. 31, 2024
Notes Tables |
Schedule of Available-for-Sale Securities Reconciliation [Table Text Block] |
|  |  |  |  |  | Gross |  |  | Gross |  |  | Allowance |  |  |  |  |
|  | Amortized |  |  | Unrealized |  |  | Unrealized |  |  | for |  |  | Fair |
March 31, 2024 |  | Cost or Cost |  |  | Gains |  |  | Losses |  |  | Credit Losses |  |  | Value |
|  | (in thousands) |
Fixed maturities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. Governments |  | $ | 39,729 |  |  | $ | — |  |  | $ | (1,387 | ) |  | $ | — |  |  | $ | 38,342 |
U.S. States, Territories, and Political Subdivisions |  |  | 10,632 |  |  |  | 71 |  |  |  | (819 | ) |  |  | — |  |  |  | 9,884 |
Special revenue excluding mortgage/asset-backed securities |  |  | 32,424 |  |  |  | 96 |  |  |  | (3,415 | ) |  |  | — |  |  |  | 29,105 |
Corporate and other |  |  | 337,679 |  |  |  | 1,260 |  |  |  | (18,280 | ) |  |  | (904 | ) |  |  | 319,755 |
Mortgage/asset-backed securities |  |  | 277,041 |  |  |  | 1,570 |  |  |  | (12,705 | ) |  |  | — |  |  |  | 265,906 |
Total available-for-sale investments |  | $ | 697,505 |  |  | $ | 2,997 |  |  | $ | (36,606 | ) |  | $ | (904 | ) |  | $ | 662,992 |
|  |  |  |  |  | Gross |  |  | Gross |  |  | Allowance |  |  |  |  |
|  | Amortized |  |  | Unrealized |  |  | Unrealized |  |  | for |  |  | Fair |
December 31, 2023 |  | Cost or Cost |  |  | Gains |  |  | Losses |  |  | Credit Losses |  |  | Value |
|  | (in thousands) |
Fixed maturities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. Governments |  | $ | 40,836 |  |  | $ | — |  |  | $ | (1,416 | ) |  | $ | — |  |  | $ | 39,420 |
U.S. States, Territories, and Political Subdivisions |  |  | 10,641 |  |  |  | 100 |  |  |  | (839 | ) |  |  | — |  |  |  | 9,902 |
Special revenue excluding mortgage/asset-backed securities |  |  | 32,513 |  |  |  | 147 |  |  |  | (3,149 | ) |  |  | — |  |  |  | 29,511 |
Corporate and other |  |  | 316,590 |  |  |  | 1,750 |  |  |  | (17,197 | ) |  |  | (904 | ) |  |  | 300,239 |
Mortgage/asset-backed securities |  |  | 274,550 |  |  |  | 1,879 |  |  |  | (11,702 | ) |  |  | — |  |  |  | 264,727 |
Total available-for-sale investments |  | $ | 675,130 |  |  | $ | 3,876 |  |  | $ | (34,303 | ) |  | $ | (904 | ) |  | $ | 643,799 |
Debt Securities, Available-for-Sale, Unrealized Loss Position, Fair Value [Table Text Block] |
|  | Less Than 12 Months |  |  | More Than 12 Months |  |  | Total |
|  | Fair |  |  | Unrealized |  |  | Fair |  |  | Unrealized |  |  | Fair |  |  | Unrealized |
March 31, 2024 |  | Value |  |  | Losses |  |  | Value |  |  | Losses |  |  | Value |  |  | Losses |
|  | (in thousands) |
Fixed maturity securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. Governments |  | $ | 17,385 |  |  | $ | (385 | ) |  | $ | 20,957 |  |  | $ | (1,002 | ) |  | $ | 38,342 |  |  | $ | (1,387 | )
U.S. States, Territories, and Political Subdivisions |  |  | 512 |  |  |  | (5 | ) |  |  | 6,217 |  |  |  | (814 | ) |  |  | 6,729 |  |  |  | (819 | )
Special revenue excluding mortgage/asset-backed securities |  |  | — |  |  |  | — |  |  |  | 26,380 |  |  |  | (3,415 | ) |  |  | 26,380 |  |  |  | (3,415 | )
Corporate and other |  |  | 41,802 |  |  |  | (402 | ) |  |  | 212,756 |  |  |  | (17,878 | ) |  |  | 254,558 |  |  |  | (18,280 | )
Mortgage/asset-backed securities |  |  | 44,727 |  |  |  | (859 | ) |  |  | 107,914 |  |  |  | (11,846 | ) |  |  | 152,641 |  |  |  | (12,705 | )
Total available-for-sale investments |  | $ | 104,426 |  |  | $ | (1,651 | ) |  | $ | 374,224 |  |  | $ | (34,955 | ) |  | $ | 478,650 |  |  | $ | (36,606 | )
|  | Less Than 12 Months |  |  | More Than 12 Months |  |  | Total |
|  | Fair |  |  | Unrealized |  |  | Fair |  |  | Unrealized |  |  | Fair |  |  | Unrealized |
December 31, 2023 |  | Value |  |  | Losses |  |  | Value |  |  | Losses |  |  | Value |  |  | Losses |
|  | (in thousands) |
Fixed maturity securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. Governments |  | $ | 738 |  |  | $ | (1 | ) |  | $ | 38,063 |  |  | $ | (1,415 | ) |  | $ | 38,801 |  |  | $ | (1,416 | )
U.S. States, Territories, and Political Subdivisions |  |  | — |  |  |  | — |  |  |  | 6,196 |  |  |  | (839 | ) |  |  | 6,196 |  |  |  | (839 | )
Special revenue excluding mortgage/asset-backed securities |  |  | — |  |  |  | — |  |  |  | 26,736 |  |  |  | (3,149 | ) |  |  | 26,736 |  |  |  | (3,149 | )
Corporate and other |  |  | 28,872 |  |  |  | (480 | ) |  |  | 204,034 |  |  |  | (16,717 | ) |  |  | 232,906 |  |  |  | (17,197 | )
Mortgage/asset-backed securities |  |  | 29,334 |  |  |  | (245 | ) |  |  | 117,016 |  |  |  | (11,457 | ) |  |  | 146,350 |  |  |  | (11,702 | )
Total available-for-sale investments |  | $ | 58,944 |  |  | $ | (726 | ) |  | $ | 392,045 |  |  | $ | (33,577 | ) |  | $ | 450,989 |  |  | $ | (34,303 | )
Investments Classified by Contractual Maturity Date [Table Text Block] |
|  | Amortized |  |  | Fair |
|  | Cost |  |  | Value |
|  | (in thousands) |
Due within one year |  | $ | 66,569 |  |  | $ | 64,574 |
Due after one year through five years |  |  | 176,356 |  |  |  | 168,722 |
Due after five years through ten years |  |  | 134,209 |  |  |  | 123,931 |
Due after ten years |  |  | 43,330 |  |  |  | 39,859 |
Mortgage and asset-backed securities |  |  | 277,041 |  |  |  | 265,906 |
|  | $ | 697,505 |  |  | $ | 662,992 |
Investment Income [Table Text Block] |
|  | Three Months Ended |
|  | March 31, |
|  | 2024 |  |  | 2023 |
|  | (in thousands) |
Interest income |  | $ | 7,326 |  |  | $ | 5,060 |
Dividend income |  |  | 197 |  |  |  | 181 |
Investment expense |  |  | (384 | ) |  |  | (121 | )
Net investment income |  | $ | 7,139 |  |  | $ | 5,120 |
Gain (Loss) on Securities [Table Text Block] |
|  | Three Months Ended |
|  | March 31, |
|  | 2024 |  |  | 2023 |
|  | (in thousands) |
Realized gains: |  |  |  |  |  |  |  |
Gains on sales of fixed maturity securities |  | $ | — |  |  | $ | 28 |
Total realized gains |  |  | — |  |  |  | 28 |
Realized losses: |  |  |  |  |  |  |  |
Losses on sales of fixed maturity securities |  |  | (2 | ) |  |  | (3 | )
Losses on sales of equity securities |  |  | (1,204 | ) |  |  | — |
Total realized losses |  |  | (1,206 | ) |  |  | (3 | )
Net realized investment (losses) gains |  |  | (1,206 | ) |  |  | 25 |
Change in allowance for credit losses |  |  | — |  |  |  | (659 | )
Net unrealized gains (losses) on equity securities |  |  | 4,229 |  |  |  | 780 |
Net unrealized (losses) gains on equity method investment |  |  | (21 | ) |  |  | — |
Net realized and unrealized gains on investments |  | $ | 3,002 |  |  | $ | 146 |

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