Note 4 - Loans - Allowance for Loan Losses by Portfolio Segment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Balance	$ 161,765	$ 154,562
Provision/(reversal) for expected credit losses	69,866	36,877
Charge-offs	(37,737)	(31,472)
Recoveries	2,017	1,798
Net (Charge-offs)/Recoveries	(35,720)	(29,674)
Balance	195,911	161,765
Commitments to Extend Credit [Member]
Balance	9,676	9,053
Provision/(reversal) for expected credit losses	2,765	623
Balance	12,441	9,676
Commercial Portfolio Segment [Member]
Balance	57,796	53,791
Provision/(reversal) for expected credit losses	12,899	29,829
Charge-offs	(33,101)	(26,926)
Recoveries	1,529	1,102
Net (Charge-offs)/Recoveries	(31,572)	(25,824)
Balance	39,123	57,796
Commercial Portfolio Segment [Member] | Commitments to Extend Credit [Member]
Balance	7,780	6,888
Provision/(reversal) for expected credit losses	1,287	892
Balance	9,067	7,780
Real Estate Construction Portfolio Segment [Member]
Balance	8,185	8,180
Provision/(reversal) for expected credit losses	(1,716)	5
Charge-offs	0	0
Recoveries	6	0
Net (Charge-offs)/Recoveries	6	0
Balance	6,475	8,185
Real Estate Construction Portfolio Segment [Member] | Commitments to Extend Credit [Member]
Balance	1,896	2,165
Provision/(reversal) for expected credit losses	1,199	(269)
Balance	3,095	1,896
Commercial Real Estate Portfolio Segment [Member]
Balance	79,597	74,428
Provision/(reversal) for expected credit losses	50,162	9,330
Charge-offs	(4,562)	(4,469)
Recoveries	468	308
Net (Charge-offs)/Recoveries	(4,094)	(4,161)
Balance	125,665	79,597
Commercial Real Estate Portfolio Segment [Member] | Commitments to Extend Credit [Member]
Balance	0	0
Provision/(reversal) for expected credit losses	279	0
Balance	279	0
Residential Mortgage and Equity Lines Portfolio Segment [Member]
Balance	16,181	18,140
Provision/(reversal) for expected credit losses	8,520	(2,283)
Charge-offs	(74)	(62)
Recoveries	14	386
Net (Charge-offs)/Recoveries	(60)	324
Balance	24,641	16,181
Residential Mortgage and Equity Lines Portfolio Segment [Member] | Commitments to Extend Credit [Member]
Balance	0	0
Provision/(reversal) for expected credit losses	0	0
Balance	0	0
Installment and Other Loans [Member ]
Balance	6	23
Provision/(reversal) for expected credit losses	1	(4)
Charge-offs	0	(15)
Recoveries	0	2
Net (Charge-offs)/Recoveries	0	(13)
Balance	7	6
Installment and Other Loans [Member ] | Commitments to Extend Credit [Member]
Balance	0	0
Provision/(reversal) for expected credit losses	0	0
Balance	$ 0	$ 0