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Note 16 - Guarantees, Commitments and Contingencies (Tables) | 9 Months Ended
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Sep. 30, 2018
Notes Tables |
Schedule of Fair Value, Off-balance Sheet Risks [Table Text Block] |
|  | September 30 , 2018 |  |  | December 31, 2017 |
|  | (Dollars in Thousands) |
Standby letters of credit |  | $ | 916 |  |  | $ | 180 |
Commitments to extend credit |  | $ | 72,232 |  |  | $ | 55,801 |

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