Note 12 - Accumulated Other Comprehensive Income (Loss) - Changes in Accumulated Balances of Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Balance	$ 278,079	$ 261,649	$ 276,732	$ 260,889
Balance	273,715	265,016	273,715	265,016
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent [Member]
Balance	(2,594)	118	(427)	478
Other comprehensive loss before reclassifications	(1,430)	136	(3,597)	(224)
Amounts reclassified from accumulated other comprehensive income (loss)	17	(15)	17	(15)
Net current period other comprehensive loss	(1,413)	121	(3,580)	(239)
Balance	(4,007)	239	(4,007)	239
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member]
Balance	156	(25)	55	0
Other comprehensive loss before reclassifications	(1,225)	76	(1,221)	32
Amounts reclassified from accumulated other comprehensive income (loss)	551	(51)	648	(32)
Net current period other comprehensive loss	(674)	25	(573)	0
Balance	(518)	0	(518)	0
AOCI Attributable to Parent [Member]
Balance	(2,438)	93	(372)	478
Other comprehensive loss before reclassifications	(2,655)	212	(4,818)	(192)
Amounts reclassified from accumulated other comprehensive income (loss)	568	(66)	665	(47)
Net current period other comprehensive loss	(2,087)	146	(4,153)	(239)
Balance	$ (4,525)	$ 239	$ (4,525)	$ 239