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Note 1 - Significant Accounting Policies - Noninterest Income (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Service Charges on Deposit and Sweep Accounts [Member]
Noninterest revenue	$ 1,967	$ 1,692	$ 3,806	$ 3,224
Credit and Debit Card [Member]
Noninterest revenue	2,350	2,266	4,551	4,387
Interest Rate Swap Fees [Member]
Noninterest revenue	1,230	766	1,310	2,104
Payroll Processing [Member]
Noninterest revenue	783	686	1,823	1,582
Customer Service [Member]
Noninterest revenue	$ 179	$ 183	$ 376	$ 381

X

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Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise.

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