Note 15 - Mortgage Banking Activities - Mortgage Banking Income (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Net gain on sale of mortgage loans held for sale	$ 166	$ 590	$ 670	$ 2,708
Net change in fair value recognized on loans held for sale	(113)	0	(70)	0
Net change in fair value recognized on rate lock loan commitments	134	0	1,324	0
Net gain recognized	288	590	1,390	2,708
Net loan servicing income	1,172	434	3,089	1,021
Amortization	(869)	(252)	(2,206)	(677)
Change in mortgage servicing rights valuation allowance	0	0	0	0
Net servicing income recognized	303	182	883	344
Other mortgage banking income	112	143	728	610
Total mortgage banking income	703	915	3,001	3,662
Foreign Exchange Forward [Member]
Net change in fair value recognized on forward contracts	$ 101	$ 0	$ (534)	$ 0