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Note 8 - Goodwill and Other Intangible Assets (Details Textual) $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) | Apr. 21, 2023 USD ($) | Dec. 31, 2020 USD ($)
Number of Reportable Segments | 1 |  |  |  |  |
Goodwill | $ 143,946 | $ 129,565 | [1] | $ 129,565 |  | $ 129,565
Goodwill, Acquired During Period | 14,381 | 0 |  | 0 |  |
Finite-Lived Intangible Assets, Net | 15,145 |  |  |  |  |
Amortization of Intangible Assets | $ 1,731 | $ 1,446 |  | $ 1,446 |  |
Core Deposits [Member] |  |  |  |  |  |
Finite-Lived Intangible Assets, Remaining Amortization Period (Year) | 8 years 5 months 1 day |  |  |  |  |
Core Deposits [Member] | Minimum [Member] |  |  |  |  |  |
Finite-Lived Intangible Asset, Useful Life (Year) | 1 year 6 months |  |  |  |  |
Core Deposits [Member] | Maximum [Member] |  |  |  |  |  |
Finite-Lived Intangible Asset, Useful Life (Year) | 9 years |  |  |  |  |
Surrey [Member] |  |  |  |  |  |
Goodwill |  |  |  |  | $ 14,381 |
Goodwill, Acquired During Period | $ 14,380 |  |  |  |  |
Surrey [Member] | Core Deposits [Member] |  |  |  |  |  |
Finite-Lived Intangible Assets, Net | $ 12,700 |  |  |  |  |
[1] | Derived from audited financial statements

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