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Note 8 - Accumulated Other Comprehensive Income (Loss) - Changes in Each Component of Accumulated Other Comprehensive Income (Loss) (Details) (Parentheticals) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Unrealized holding gains, tax $ (1,080) $ 155 $ (925) $ (6,225)
OCI, Debt Securities, Available-for-Sale, Transfer from Held-to-Maturity, Gain (Loss), before Adjustment, Tax 86 (1,605) 258 (1,605)
OCI, Debt Securities, Available-for-Sale, Transfer from Held-to-Maturity, Gain (Loss), before Adjustment, Amortization 86 0 258 0
Change in fair value of cash flow hedges, tax $ 113 106 $ 82 373
AOCI Attributable to Parent [Member]        
OCI, Debt Securities, Available-for-Sale, Transfer from Held-to-Maturity, Gain (Loss), before Adjustment, Amortization   $ (157)   $ (157)