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Note 9 - Goodwill and Other Intangible Assets (Tables) | 12 Months Ended
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Dec. 31, 2020
Notes Tables |
Schedule of Goodwill [Table Text Block] |
(Amounts in thousands) |  |  |  |
Balance January 1, 2018 |  | $ | 95,779 |
Dispositions |  |  | (1,543 | )
Impairment Charges |  |  | (1,492 | )
Balance December 31, 2018 |  | $ | 92,744 |
Balance January 1, 2019 |  | $ | 92,744 |
Acquisitions |  |  | 36,821 |
Balance December 31, 2019 |  | $ | 129,565 |
Balance January 1, 2020 |  | $ | 129,565 |
Acquisitions and dispositions, net |  |  | — |
Balance December 31, 2020 |  | $ | 129,565 |
Schedule of Finite-Lived Intangible Assets [Table Text Block] |
|  | December 31, |
|  | 2020 |  |  | 2019 |  |  | 2018 |
(Amounts in thousands) |  |  |  |  |  |  |  |  |  |  |  |
Core deposit intangibles |  | $ | 8,519 |  |  | $ | 8,184 |  |  | $ | 8,184 |
Acquisitions |  |  | — |  |  |  | 4,490 |  |  |  | — |
Accumulated amortization |  |  | (1,450 | ) |  |  | (4,155 | ) |  |  | (3,158 | )
Core deposit intangibles, net |  |  | 7,069 |  |  |  | 8,519 |  |  |  | 5,026 |
Other identifiable intangibles |  |  | — |  |  |  | — |  |  |  | 535 |
Accumulated amortization |  |  | — |  |  |  | — |  |  |  | (535 | )
Other identifiable intangibles, net |  |  | — |  |  |  | — |  |  |  | — |
Total other intangible assets, net |  | $ | 7,069 |  |  | $ | 8,519 |  |  | $ | 5,026 |
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] |
(Amounts in thousands) |  |  |  |
2021 |  | $ | 1,446 |
2022 |  |  | 1,446 |
2023 |  |  | 878 |
2024 |  |  | 856 |
2025 |  |  | 648 |
2026 and thereafter |  |  | 1,795 |
Total estimated amortization expense |  | $ | 7,069 |

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