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Note 14 - Guarantees, Commitments and Contingencies (Tables) | 6 Months Ended
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Jun. 30, 2018
Notes Tables |
Schedule of Fair Value, Off-balance Sheet Risks [Table Text Block] |
|  | June 30 , 2018 |  |  | December 31, 2017 |
|  | (Dollars in Thousands) |
Standby letters of credit |  | $ | 180 |  |  | $ | 180 |
Commitments to extend credit |  | $ | 42,875 |  |  | $ | 55,801 |

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