Note 14 - Supplemental Cash Flow Information - Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021	[1]
Cash and due from banks	$ 34,506	$ 33,266	$ 23,095
Interest-bearing deposits in other banks	452,562	383,984	$ 487,773
Cash and Cash Equivalents	487,068	417,250
Interest on deposits and borrowed funds	995	2,016
Income taxes	0	(1,205)
Net unrealized losses on securities available for sale	(30,861)	(5,882)
Net unrealized gains on cash flow hedges	$ 1,885	$ 1,781

[1] Derived from audited consolidated financial statements