Note 9 - Income Taxes - Deferred Tax Assets and Deferred Tax Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Investment securities	$ 30,308	$ 29,805
Allowance for credit losses	21,373	19,575
Deferred compensation	6,605	6,807
Operating lease liability	7,580	5,449
Acquired loan fair value adjustments	2,500	3,205
Accrued expenses	3,905	2,691
Interest rate swaps	0	63
Write-downs and costs associated with OREO	27	27
Deferred PPP loan fees	9	17
Total deferred tax assets	72,307	67,639
Right-of-use operating lease asset	7,300	5,181
Mortgage servicing rights	2,786	3,192
Property and equipment	2,143	2,036
Other liabilities	1,897	2,025
Investments in tax credit partnerships	227	1,515
Loan costs	1,599	1,504
Interest rate swaps	925	0
Leases	128	200
Total deferred tax liabilities	20,661	20,403
Net deferred tax asset	51,646	47,236
Core Deposits [Member]
Intangibles	1,975	2,688
Customer Lists [Member]
Intangibles	$ 1,681	$ 2,062