Note 7 - Goodwill (Details Textual) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Mar. 07, 2022	Dec. 31, 2020
Goodwill	$ 194,074	$ 194,074	$ 194,074	$ 135,830		$ 12,513
Goodwill, Written off Related to Sale of Business Unit		(0)	8,450	$ (0)
Landmark Financial Advisors, LLC (LFA) [Member]
Goodwill, Written off Related to Sale of Business Unit			8,500
Commonwealth [Member]
Goodwill	58,244	58,244	$ 58,244		$ 67,000
Goodwill, Written off Related to Sale of Business Unit	$ 8,500
Commercial Banking [Member]
Goodwill		172,000
WM&T [Member]
Goodwill		$ 22,000