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Note 6 - Goodwill and Other Intangible Assets (Tables) | 9 Months Ended
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Sep. 30, 2025
Notes Tables |
Schedule of Goodwill [Table Text Block] |
|  | September 30, |  |  | December 31, |
(dollars in thousands) |  | 2025 |  |  | 2024 |
Banking |  | $ | 74,111 |  |  | $ | 74,111 |
Retirement and benefit services |  |  | 11,523 |  |  |  | 11,523 |
Total goodwill |  | $ | 85,634 |  |  | $ | 85,634 |
Schedule of Finite-Lived Intangible Assets [Table Text Block] |
|  | September 30, 2025 |  |  | December 31, 2024 |
(dollars in thousands) |  | Gross Carrying Amount |  |  | Accumulated Amortization |  |  | Total |  |  | Gross Carrying Amount |  |  | Accumulated Amortization |  |  | Total |
Identifiable customer intangibles |  | $ | 27,504 |  |  | $ | (21,797 | ) |  | $ | 5,707 |  |  | $ | 41,423 |  |  | $ | (33,736 | ) |  | $ | 7,687 |
Core deposit intangible assets |  |  | 41,092 |  |  |  | (11,046 | ) |  |  | 30,046 |  |  |  | 41,092 |  |  |  | (4,897 | ) |  |  | 36,195 |
Total intangible assets |  | $ | 68,596 |  |  | $ | (32,843 | ) |  | $ | 35,753 |  |  | $ | 82,515 |  |  | $ | (38,633 | ) |  | $ | 43,882 |

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