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Note 2 - Basis of Presentation and Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2023
Notes Tables |
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] |
(dollars in thousands) |  |  |  |
Year ending December 31: |  |  |  |
2024 |  | $ | 784 |
2025 |  |  | 672 |
2026 |  |  | 501 |
2027 |  |  | 417 |
2028 |  |  | 297 |
Thereafter |  |  | 124 |
Total |  | $ | 2,795 |
Accounting Standards Update and Change in Accounting Principle [Table Text Block] |
|  |  |  |  |  | Adjustments |  |  |  |  |
|  |  |  |  |  | due to |  |  |  |  |
|  | Balance at |  |  | Adoption of |  |  | Balance at |
(dollars in thousands) |  | December 31, 2021 |  |  | ASC 326 |  |  | January 1, 2022 |
Assets: |  |  |  |  |  |  |  |  |  |  |  |
Allowance for credit losses on loans |  | $ | 32,912 |  |  | $ | 2,135 |  |  | $ | 35,047 |
Deferred tax assets |  |  | 4,855 |  |  |  | 977 |  |  |  | 5,832 |
Liabilities: |  |  |  |  |  |  |  |  |  |  |  |
Reserve for unfunded commitments |  | $ | 1,203 |  |  | $ | 1,045 |  |  | $ | 2,248 |
Stockholders' equity: |  |  |  |  |  |  |  |  |  |  |  |
Retained earnings, net of tax |  | $ | 181,329 |  |  | $ | (2,204 | ) |  | $ | 179,125 |
Core Deposits [Member] |
Notes Tables |
Schedule of Finite-Lived Intangible Assets [Table Text Block] |
|  | Year ended December 31, |
(dollars in thousands) |  | 2023 |  |  | 2022 |  |  | 2021 |
Core deposit intangibles |  |  |  |  |  |  |  |  |  |  |  |
Balance, beginning of year |  | $ | 10,459 |  |  | $ | 9,730 |  |  | $ | 9,730 |
Acquired from acquisitions |  |  | — |  |  |  | 729 |  |  |  | — |
Balance, end of year |  | $ | 10,459 |  |  | $ | 10,459 |  |  | $ | 9,730 |
Accumulated amortization: |  |  |  |  |  |  |  |  |  |  |  |
Balance, beginning of year |  | $ | 6,741 |  |  | $ | 5,655 |  |  | $ | 4,534 |
Amortization |  |  | 923 |  |  |  | 1,086 |  |  |  | 1,121 |
Balance, end of year |  | $ | 7,664 |  |  | $ | 6,741 |  |  | $ | 5,655 |
Core deposit intangibles, net |  | $ | 2,795 |  |  | $ | 3,718 |  |  | $ | 4,075 |

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