Note 8 - Loan Servicing - Schedule of Servicing Assets at Amortized Value (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Balance at beginning of period		$ 1,963	$ 2,351	$ 2,052	$ 2,643
Additions, net of valuation reserve (1)	[1]	225	210	358	236
Amortization (2)	[2]	(105)	(140)	(327)	(458)
Balance at end of period		2,083	2,421	2,083	2,421
Less valuation reserve (3)	[3]	(209)	(207)	(209)	(207)
Balance at end of period, net of valuation reserve		1,874	2,214	1,874	2,214
Fair value, beginning of period		2,082	2,351	2,062	2,643
Fair value, end of period		$ 1,874	$ 2,269	$ 1,874	$ 2,269

[1] Associated income was reported within mortgage banking income, net on the consolidated statements of income.

[2] Associated amortization expense was reported within other noninterest income on the consolidated statements of income.

[3] Associated valuation reserve was reported within mortgage and lending expenses on the consolidated statements of income.