Note 3 - Accumulated Other Comprehensive Income (Loss) - Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Balance	$ 436,714	$ 404,482	$ 386,803
Other comprehensive income (loss), net of tax	(2,954)	1,491	(1,646)
Balance	289,129	436,714	404,482
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent [Member]
Balance	(185)	1,224	822
Change in unrealized gains (losses) during the period	(2,462)	(1,854)	549
Net gains reclassified into income during the period	0	22	(25)
Income tax benefit (provision)	(58)	423	(122)
Other comprehensive income (loss), net of tax	(2,520)	(1,409)	402
Balance	(2,705)	(185)	1,224
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]
Balance	1,192	(1,708)	340
Change in unrealized gains (losses) during the period	581	2,837	(2,099)
Net gains reclassified into income during the period	(1,147)	933	(564)
Income tax benefit (provision)	132	(870)	615
Other comprehensive income (loss), net of tax	(434)	2,900	(2,048)
Balance	758	1,192	(1,708)
AOCI Attributable to Parent [Member]
Balance	1,007	(484)	1,162
Change in unrealized gains (losses) during the period	(1,881)	983	(1,550)
Net gains reclassified into income during the period	(1,147)	955	(589)
Income tax benefit (provision)	74	(447)	493
Other comprehensive income (loss), net of tax	(2,954)	1,491	(1,646)
Balance	$ (1,947)	$ 1,007	$ (484)