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Note 15 - Commitments, Contingencies and Concentrations of Credit Risk (Tables) | 12 Months Ended
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Dec. 31, 2020
Notes Tables |
Schedule of Fair Value, Off-balance Sheet Risks [Table Text Block] |
|  | 2020 |  |  | 2019 |
Commitments to extend credit |  | $ | 222,660 |  |  | $ | 207,168 |
Standby letters of credit |  |  | 7,168 |  |  |  | 7,633 |
Total commitments |  | $ | 229,828 |  |  | $ | 214,801 |

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