Note 8 - Accumulated Other Comprehensive Income - Changes in Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||||
|---|---|---|---|---|---|---|
Jun. 30, 2026 |
Mar. 31, 2026 |
Jun. 30, 2025 |
Mar. 31, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Accumulated Other Comprehensive Income (Loss) [Line Items] | ||||||
| Balance | $ 959,039 | $ 942,667 | $ 790,449 | $ 729,030 | $ 942,667 | $ 729,030 |
| Other comprehensive (loss) income | 1,294 | (13,947) | 3,009 | 10,203 | ||
| Balance | 980,942 | 959,039 | 847,197 | 790,449 | 980,942 | 847,197 |
| AOCI Attributable to Parent [Member] | ||||||
| Accumulated Other Comprehensive Income (Loss) [Line Items] | ||||||
| Balance | (16,453) | (2,506) | (16,642) | (26,845) | (2,506) | (26,845) |
| Other comprehensive (loss) income before reclassification | (16,758) | 16,389 | ||||
| Federal income tax expense | 4,038 | (3,432) | ||||
| Other comprehensive (loss) income before reclassification, net of tax | (12,720) | 12,957 | ||||
| Amounts reclassified from AOCI | 84 | 323 | ||||
| Federal income tax benefit (expense) | (17) | (68) | ||||
| Amounts reclassified from AOCI, net of tax | 67 | 255 | ||||
| Other comprehensive (loss) income | 1,294 | (13,947) | 3,009 | 10,203 | (12,653) | 13,212 |
| Balance | $ (15,159) | $ (16,453) | $ (13,633) | $ (16,642) | $ (15,159) | $ (13,633) |
| X | ||||||||||
- 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. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount before tax and reclassification adjustments of other comprehensive income (loss) attributable to parent. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount after tax, before reclassification adjustments, of other comprehensive income (loss), attributable to parent. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of tax expense (benefit) allocated to other comprehensive income (loss) before reclassification adjustment from accumulated other comprehensive income (loss). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount after tax of other comprehensive income (loss) attributable to parent entity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount before tax of reclassification adjustments of other comprehensive income (loss) attributable to parent. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount after tax of reclassification adjustments of other comprehensive income (loss) attributable to parent. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of tax expense (benefit) of reclassification adjustment from accumulated other comprehensive income (loss). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of equity (deficit) attributable to parent. Excludes temporary equity and equity attributable to noncontrolling interest. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Details
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