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Note 16 - Accumulated Other Comprehensive Income (Loss) - Accumulated Other Comprehensive Income (Loss) by Component (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021
Balance, beginning of period |  |  | $ 675,869 |
Balance, end of period | $ 747,131 |  | 747,131 |
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent [Member] |  |  |  |
Balance, beginning of period | (57,316) | $ (2,513) | (7,657) | $ 9,310
Net current period other comprehensive loss | (29,738) | 4,808 | (79,397) | (7,015)
Balance, end of period | (87,054) | 2,295 | (87,054) | 2,295
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member] |  |  |  |
Balance, beginning of period | 0 | (90) | 0 | (122)
Net current period other comprehensive loss | 0 | 32 | 0 | 64
Balance, end of period | 0 | (58) | 0 | (58)
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] |  |  |  |
Balance, beginning of period | (283) | (447) | (283) | (447)
Net current period other comprehensive loss | 0 | 0 | 0 | 0
Balance, end of period | (283) | (447) | (283) | (447)
AOCI Attributable to Parent [Member] |  |  |  |
Balance, beginning of period | (57,599) | (3,050) | (7,940) | 8,741
Net current period other comprehensive loss | (29,738) | 4,840 | (79,397) | (6,951)
Balance, end of period | $ (87,337) | $ 1,790 | $ (87,337) | $ 1,790

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