Note 22 - Segments (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Jun. 30, 2025	Dec. 31, 2024
Goodwill		$ 194,074	$ 194,074
Goodwill, Written off Related to Sale of Business Unit	$ 8,500
Commonwealth [Member]
Goodwill		58,244	58,244
Commercial Banking [Member]
Goodwill		172,000	172,000
WM&T [Member]
Goodwill		22,000	22,000
Investment Management and Trust [Member]
Assets under Management, Carrying Amount		7,190,000	$ 7,070,000
Operating Segments [Member] | Commercial Banking [Member]
Goodwill		172,000
Operating Segments [Member] | WM&T [Member]
Goodwill		22,000
Operating Segments [Member] | WM&T [Member] | Commonwealth [Member]
Goodwill		$ 67,000