Note 15 - Mortgage Banking Activities - Mortgage Banking Income (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Net gain realized on sale of mortgage loans held for sale	$ 823	$ 683	$ 1,377	$ 1,024
Net change in fair value recognized on loans held for sale	(92)	(3)	(24)	31
Net change in fair value recognized on rate lock loan commitments	(134)	(108)	221	149
Net gain recognized	578	654	1,343	1,312
Net loan servicing income	788	817	1,604	1,778
Amortization of mortgage servicing rights	(402)	(582)	(1,133)	(1,319)
Change in mortgage servicing rights valuation allowance	0	0	0	0
Net servicing income recognized	386	235	471	459
Other mortgage banking income	130	128	197	194
Total mortgage banking income	1,094	1,017	2,011	1,965
Foreign Exchange Forward [Member]
Net change in fair value recognized on forward contracts	$ (19)	$ 82	$ (231)	$ 108