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Note 9 - Intangible Assets (Tables) | 12 Months Ended
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Dec. 31, 2020
Notes Tables |
Finite-lived Intangible Assets Amortization Expense [Table Text Block] |
|  | 2020 |  |  | 2019 |
|  | Gross |  |  | Accumulated |  |  | Gross |  |  | Accumulated |
|  | Amount |  |  | Amortization |  |  | Amount |  |  | Amortization |
Core deposit intangible asset |  | $ | 6,411 |  |  | $ | 3,493 |  |  | $ | 6,411 |  |  | $ | 2,745 |
Customer list |  |  | 535 |  |  |  | 320 |  |  |  | 535 |  |  |  | 242 |
Total |  | $ | 6,946 |  |  | $ | 3,813 |  |  | $ | 6,946 |  |  | $ | 2,987 |
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] |
2021 |  | $ | 628 |
2022 |  |  | 574 |
2023 |  |  | 502 |
2024 |  |  | 337 |
2025 |  |  | 301 |
After |  |  | 791 |
Total |  | $ | 3,133 |
Schedule of Finite-Lived Intangible Assets [Table Text Block] |
|  | 2020 |  |  | 2019 |
Beginning intangibles, net |  | $ | 3,959 |  |  | $ | 2,678 |
Acquisition |  |  | - |  |  |  | 1,891 |
Amortization |  |  | (826 | ) |  |  | (610 | )
Ending intangible asset, net |  | $ | 3,133 |  |  | $ | 3,959 |

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