Note 23 - Supplemental Cash Flow Information - Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Cash and due from banks	$ 32,207	$ 23,095	$ 30,767
Interest-bearing deposits in other banks	41,133	483,723	337,853
Cash and Cash Equivalents, at Carrying Value, Total	73,340	506,818	368,620
Interest on deposits and borrowed funds	5,308	5,791	12,455
Income taxes	8,472	3,102	7,609
Transfer of loans to other real estate owned	0	0	95
Transfer of loans to repossessions	53	0	411
Transfer from premises and equipment to other assets	0	1,316	0
Increase (decrease) in operating lease right-of-use asset	240	21	371
Increase (decrease) in operating lease liabilities	240	(21)	371
Unrealized gains (losses) on securities available for sale	(68,877)	(12,271)	6,399
Unrealized gains (losses) on cash flow hedges	4,125	2,068	(2,210)
Change in unfunded pension liability	$ 1,082	$ 590	$ (413)