Note 7 - Components of Accumulated Other Comprehensive Loss - Components of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2025 |
Jun. 30, 2024 |
Jun. 30, 2025 |
Jun. 30, 2024 |
|
| Balance | $ 167,278 | $ 139,390 | $ 156,409 | $ 140,522 |
| Balance | 168,736 | 148,962 | 168,736 | 148,962 |
| AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent [Member] | ||||
| Balance | (54,503) | (65,894) | (62,093) | (62,556) |
| Unrealized holding gain (loss) on available for sale securities, net of tax | 3,763 | (150) | 11,353 | (3,488) |
| Balance | (50,740) | (66,044) | (50,740) | (66,044) |
| AOCI Attributable to Parent [Member] | ||||
| Balance | (54,175) | (68,204) | (61,765) | (64,866) |
| Unrealized holding gain (loss) on available for sale securities, net of tax | 3,763 | (150) | 11,353 | (3,488) |
| Balance | (50,412) | (68,354) | (50,412) | (68,354) |
| Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] | ||||
| Balance | 328 | (2,310) | 328 | (2,310) |
| Unrealized holding gain (loss) on available for sale securities, net of tax | 0 | 0 | 0 | 0 |
| Balance | $ 328 | $ (2,310) | $ 328 | $ (2,310) |
| X | ||||||||||
- Definition Amount after tax, before reclassification adjustments of other comprehensive income (loss). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- 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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| X | ||||||||||
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