Note 5 - Loans and the Allowance for Credit Losses - Activity in the ACL for Loans (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Balance	$ 82,869	$ 87,002	$ 81,974	$ 90,513	$ 90,513
Charge-offs	(3,595)	(1,118)	(6,781)	(5,602)	(17,049)
Recoveries	324	76	347	77
(Reversal of) provision for credit losses - loans	2,479	3,245	6,536	4,217
Balance	82,077	89,205	82,077	89,205	81,974
Commercial Portfolio Segment [Member]
Balance	20,735	26,162	20,632	28,903	28,903
Charge-offs	0	(1,100)	(300)	(3,867)	(14,888)
Recoveries	324	9	347	9
(Reversal of) provision for credit losses - loans	(1,039)	4,255	(659)	4,281
Balance	20,020	29,326	20,020	29,326	20,632
Commercial Real Estate Portfolio Segment [Member]
Balance	52,794	53,000	52,278	53,742	53,742
Charge-offs	(3,595)	0	(6,481)	(1,717)	(2,142)
Recoveries	0	0	0	0
(Reversal of) provision for credit losses - loans	3,899	(491)	7,300	484
Balance	53,098	52,509	53,098	52,509	52,278
Commercial Construction Portfolio Segment [Member]
Balance	5,011	3,966	4,739	3,718	3,718
Charge-offs	0	0	0	0	0
Recoveries	0	0	0	0
(Reversal of) provision for credit losses - loans	(539)	(420)	(267)	(172)
Balance	4,472	3,546	4,472	3,546	4,739
Residential Portfolio Segment [Member]
Balance	4,326	3,868	4,320	4,143	4,143
Charge-offs	0	(18)	0	(18)	(18)
Recoveries	0	67	0	68
(Reversal of) provision for credit losses - loans	158	(98)	164	(374)
Balance	4,484	3,819	4,484	3,819	4,320
Consumer Portfolio Segment [Member]
Balance	3	6	5	7	7
Charge-offs	0	0	0	0	(1)
Recoveries	0	0	0	0
(Reversal of) provision for credit losses - loans	0	(1)	(2)	(2)
Balance	$ 3	$ 5	$ 3	$ 5	$ 5