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Note 22 - Segments (Details Textual) $ in Thousands | 9 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Sep. 30, 2025 USD ($) | Dec. 31, 2022 USD ($) | Dec. 31, 2024 USD ($)
Number of Reportable Segments | 2 |  |
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 | 7,480,000 |  | $ 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 |  |

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