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Note 16 - Components of Accumulated Other Comprehensive Income (Loss) - Components of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021
Balance | $ 191,751 | $ 200,607
Net pension gain (loss) arising during the period, net of tax | (4,567) | (3,244)
Less amortization of prior service cost included in net periodic pension cost, net of tax | 0 | (9)
Balance | 122,687 | 191,751
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent [Member] |  |
Balance | 2,854 | 13,176
Unrealized holding gain (loss) on available for sale securities, net of tax | (84,275) | (10,308)
Reclassification adjustment for gains included in net income, net of tax of ($1) |  | (5)
Balance | (81,421) | 2,854
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] |  |
Balance | (6,912) | (10,147)
Net pension gain (loss) arising during the period, net of tax | 4,567 | 3,244
Less amortization of prior service cost included in net periodic pension cost, net of tax |  | (9)
Balance | (2,345) | (6,912)
AOCI Attributable to Parent [Member] |  |
Balance | (4,058) | 3,020
Unrealized holding gain (loss) on available for sale securities, net of tax | (84,275) | (10,308)
Reclassification adjustment for gains included in net income, net of tax of ($1) |  | (5)
Net pension gain (loss) arising during the period, net of tax | 4,567 | 3,244
Less amortization of prior service cost included in net periodic pension cost, net of tax |  | (9)
Balance | $ (83,766) | $ (4,058)

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