Note 21 - Accumulated Other Comprehensive (Loss) Income - Other Comprehensive (loss) Income by Component (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Balance	$ 327,473	$ 281,580	$ 247,764
Balance	354,530	327,473	281,580
Accumulated Pension Plan Adjustment Net Unamortized Gain (Loss) [Member]
Balance	30	(199)	(140)
Other comprehensive income (loss) before reclassification, net of tax	(53)	229	(59)
Amounts reclassified from accumulated other comprehensive loss, net of tax	0	0	0
Net current period other comprehensive income (loss)	(53)	229	(59)
Balance	(23)	30	(199)
Accumulated Defined Benefit Plans Adjustment, Net Gain (Loss) Attributable to Parent [Member]
Balance	9	(40)	48
Other comprehensive income (loss) before reclassification, net of tax	163	49	(88)
Amounts reclassified from accumulated other comprehensive loss, net of tax	0	0	0
Net current period other comprehensive income (loss)	163	49	(88)
Balance	172	9	(40)
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]
Balance	3,993	(1,132)	(518)
Other comprehensive income (loss) before reclassification, net of tax	16,874	5,125	(614)
Amounts reclassified from accumulated other comprehensive loss, net of tax	0	0	0
Net current period other comprehensive income (loss)	16,874	5,125	(614)
Balance	20,867	3,993	(1,132)
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent [Member]
Balance	1,868	6,816	3,145
Other comprehensive income (loss) before reclassification, net of tax	(40,307)	(4,625)	6,310
Amounts reclassified from accumulated other comprehensive loss, net of tax	538	(323)	(2,639)
Net current period other comprehensive income (loss)	(39,769)	(4,948)	3,671
Balance	(37,901)	1,868	6,816
AOCI Accumulated Gain (Loss) Securities Fair Value Hedge Parent [Member]
Balance	(418)	0
Other comprehensive income (loss) before reclassification, net of tax	5,824	(418)
Amounts reclassified from accumulated other comprehensive loss, net of tax	0	0
Net current period other comprehensive income (loss)	5,824	(418)
Balance	5,406	(418)	0
AOCI Attributable to Parent [Member]
Balance	5,482	5,445	2,535
Other comprehensive income (loss) before reclassification, net of tax	(17,499)	360	5,549
Amounts reclassified from accumulated other comprehensive loss, net of tax	538	(323)	(2,639)
Net current period other comprehensive income (loss)	(16,961)	37	2,910
Balance	$ (11,479)	$ 5,482	$ 5,445