Note 1 - Significant Accounting Policies - Noninterest Income (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Service Charges on Deposit and Sweep Accounts [Member]
Noninterest revenue	$ 1,753	$ 1,370	$ 4,976	$ 3,411
Credit and Debit Card [Member]
Noninterest revenue	2,257	2,232	6,644	6,717
Payroll Processing [Member]
Noninterest revenue	713	591	2,295	1,908
Customer Service [Member]
Noninterest revenue	$ 231	$ 205	$ 611	$ 612

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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+ Details