Note 5 - Goodwill (Details Textual) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022	Mar. 07, 2022	Dec. 31, 2021
Goodwill, Ending Balance	$ 194,074	$ 202,524	$ 194,074		$ 135,830
Goodwill, Written off Related to Sale of Business Unit	(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		58,244	$ 67,000
Commercial Banking [Member]
Goodwill, Ending Balance	172,000		172,000
WM&T [Member]
Goodwill, Ending Balance	$ 22,000		$ 22,000