Note 7 - Goodwill (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Mar. 07, 2022	Dec. 31, 2019
Goodwill, Ending Balance	$ 194,074	$ 135,830	$ 12,513		$ 12,513
Goodwill, Written off Related to Sale of Business Unit	8,450	(0)	$ (0)
Landmark Financial Advisors, LLC (LFA) [Member]
Goodwill, Written off Related to Sale of Business Unit	8,500
Commonwealth [Member]
Goodwill, Ending Balance	58,244	$ 0		$ 67,000
Commercial Banking [Member]
Goodwill, Ending Balance	172,000
WM&T [Member]
Goodwill, Ending Balance	$ 22,000