Note 14 - Supplemental Cash Flow Information - Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021	[1]
Cash and due from banks	$ 35,437	$ 38,349	$ 35,437	$ 38,349	$ 23,095
Interest-bearing deposits in other banks	59,541	476,002	59,541	476,002	$ 487,773
Cash and Cash Equivalents	94,978	514,351	94,978	514,351
Interest on deposits and borrowed funds			3,160	4,715
Income taxes			1,482	2,312
Net unrealized losses on securities available for sale	(25,234)	(2,191)	(71,381)	(6,657)
Net unrealized gains on cash flow hedges	$ 1,459	$ 230	$ 4,298	$ 1,603

[1] Derived from audited consolidated financial statements