Note 6 - Goodwill (Details Textual) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Goodwill, Ending Balance	$ 194,074	$ 194,074	$ 194,074	$ 135,830
Commercial Banking [Member]
Goodwill, Ending Balance	172,000	172,000
WM&T [Member]
Goodwill, Ending Balance	$ 22,000	$ 22,000

Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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+ Details