Note 23 - Supplemental Cash Flow Information - Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Cash and due from banks	$ 23,095	$ 30,767	$ 32,505
Interest-bearing deposits in other banks	487,773	343,603	47,077
Cash and Cash Equivalents, at Carrying Value, Ending Balance	510,868	374,370	79,582
Interest on deposits and borrowed funds	5,791	12,455	15,310
Income taxes	3,102	7,609	4,698
Transfer of loans to other real estate owned	0	95	234
Transfer of loans to repossessions	0	411	0
Transfer from premises and equipment to other assets	1,316	0	445
Increase (decrease) in operating lease right-of-use asset	21	371	4,453
Increase (decrease) in operating lease liabilities	(21)	371	4,453
Unrealized gains (losses) on securities available for sale	(12,271)	6,399	8,821
Unrealized gains (losses) on cash flow hedges	2,068	(2,210)	(1,854)
Change in unfunded pension liability	590	(413)	(64)
Assets acquired:
Investment securities	0	0	34,876
Restricted stock	0	0	2,588
Loans	0	0	444,324
Premises and equipment	0	0	12,554
Deferred income taxes	0	0	2,960
Core deposit intangible	0	0	8,200
Other real estate owned	0	0	1,442
Bank owned life insurance	0	0	8,246
Other assets	0	0	14,244
Liabilities assumed:
Deposits	0	0	483,626
Short-term FHLB advances	0	0	14,883
Long-term FHLB advances	0	0	778
Subordinated debt	0	0	7,530
Other liabilities	0	0	5,780
Consideration:
Issuance of common stock	0	0	82,470
Fair value of replacement stock options/restricted stock	$ 0	$ 0	$ 753