Note 4 - Loans, Allowance for Credit Losses and Other Real Estate Owned - Allowance for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2024	Dec. 31, 2023
Balance at beginning of period	$ 14,780	$ 16,867	$ 16,867
Provision (reversal)	(550)	300
Chargeoffs	(1,726)	(2,003)
Recoveries	1,410	715
Total allowance for credit losses	13,914	15,879	14,780	$ 16,867
Commercial Portfolio Segment [Member]
Balance at beginning of period	4,197	4,216	4,216
Provision (reversal)	(41)	(463)
Chargeoffs	(10)	0	(283)
Recoveries	265	12
Total allowance for credit losses	4,411	3,765	4,197	4,216
Commercial Real Estate Portfolio Segment [Member]
Balance at beginning of period	6,034	5,925	5,925
Provision (reversal)	309	(212)
Chargeoffs	(191)	0		0
Recoveries	13	45
Total allowance for credit losses	6,165	5,758	6,034	5,925
Construction Portfolio Segment [Member]
Balance at beginning of period	247	245	245
Provision (reversal)	0	(3)
Chargeoffs	0	0		0
Recoveries	0	0
Total allowance for credit losses	247	242	247	245
Residential Portfolio Segment [Member]
Balance at beginning of period	22	26	26
Provision (reversal)	4	(4)
Chargeoffs	0	0		0
Recoveries	0	0
Total allowance for credit losses	26	22	22	26
Consumer Portfolio Segment [Member]
Balance at beginning of period	4,280	6,455	6,455
Provision (reversal)	(822)	982
Chargeoffs	(1,525)	(2,003)		(6,391)
Recoveries	1,132	658
Total allowance for credit losses	$ 3,065	$ 6,092	$ 4,280	$ 6,455