Note 12 - Accumulated Other Comprehensive Loss - Changes in Accumulated Balances of Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Balance	$ 273,715	$ 265,016	$ 276,732	$ 260,889
Balance	252,297	269,742	252,297	269,742
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent [Member]
Balance	(4,007)	239	(427)	478
Other comprehensive loss before reclassifications	(2,351)	(177)	(5,948)	(401)
Amounts reclassified from accumulated other comprehensive income (loss)	4	2	21	(13)
Net current period other comprehensive loss	(2,347)	(175)	(5,927)	(414)
Balance	(6,354)	64	(6,354)	64
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member]
Balance	(518)	0	55	0
Other comprehensive loss before reclassifications	(232)	25	(1,453)	57
Amounts reclassified from accumulated other comprehensive income (loss)	343	(25)	991	(57)
Net current period other comprehensive loss	111	0	(462)	0
Balance	(407)	0	(407)	0
AOCI Attributable to Parent [Member]
Balance	(4,525)	239	(372)	478
Other comprehensive loss before reclassifications	(2,583)	(152)	(7,401)	(344)
Amounts reclassified from accumulated other comprehensive income (loss)	347	(23)	1,012	(70)
Net current period other comprehensive loss	(2,236)	(175)	(6,389)	(414)
Balance	$ (6,761)	$ 64	$ (6,761)	$ 64