Note 15 - Accumulated Other Comprehensive (Loss) Income - Other Comprehensive (loss) Income by Component (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022		Sep. 30, 2021
Balance	$ 333,891	$ 315,207	$ 327,473	[1]	$ 281,580
Balance	341,674	323,289	341,674		323,289
Accumulated Pension Plan Adjustment Net Unamortized Gain (Loss) [Member]
Balance	30	(199)	30		(199)
Other comprehensive (loss) income before reclassification	0	0	0		0
Amounts reclassified from accumulated other comprehensive (loss) income, net of tax	0	0	0		0
Net current period other comprehensive (loss) income	0	0	0		0
Balance	30	(199)	30		(199)
Accumulated Defined Benefit Plans Adjustment, Net Gain (Loss) Attributable to Parent [Member]
Balance	9	(40)	9		(40)
Other comprehensive (loss) income before reclassification	0	0	0		0
Amounts reclassified from accumulated other comprehensive (loss) income, net of tax	0	0	0		0
Net current period other comprehensive (loss) income	0	0	0		0
Balance	9	(40)	9		(40)
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]
Balance	15,885	2,163	3,993		(1,132)
Other comprehensive (loss) income before reclassification	5,706	689	17,598		3,984
Amounts reclassified from accumulated other comprehensive (loss) income, net of tax	0	0	0		0
Net current period other comprehensive (loss) income	5,706	689	17,598		3,984
Balance	21,591	2,852	21,591		2,852
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent [Member]
Balance	(26,916)	5,177	1,868		6,816
Other comprehensive (loss) income before reclassification	(12,342)	(2,754)	(41,462)		(3,935)
Amounts reclassified from accumulated other comprehensive (loss) income, net of tax	184	52	520		(406)
Net current period other comprehensive (loss) income	(12,158)	(2,702)	(40,942)		(4,341)
Balance	(39,074)	2,475	(39,074)		2,475
AOCI Accumulated Gain (Loss) Securities Fair Value Hedge Parent [Member]
Balance	3,518		(418)
Other comprehensive (loss) income before reclassification	2,251		6,187
Amounts reclassified from accumulated other comprehensive (loss) income, net of tax	0		0
Net current period other comprehensive (loss) income	2,251		6,187
Balance	5,769		5,769
AOCI Attributable to Parent [Member]
Balance	(7,474)	7,101	5,482		5,445
Other comprehensive (loss) income before reclassification	(4,385)	(2,065)	(17,677)		49
Amounts reclassified from accumulated other comprehensive (loss) income, net of tax	184	52	520		(406)
Net current period other comprehensive (loss) income	(4,201)	(2,013)	(17,157)		(357)
Balance	$ (11,675)	$ 5,088	$ (11,675)		$ 5,088

[1] Derived from audited consolidated financial statements