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Note 14 - Financial Instruments with Off-balance Sheet Risk (Tables) | 12 Months Ended
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Dec. 31, 2015
Risks and Uncertainties [Abstract] |
Schedule of Commitment to Extended Credit [Table Text Block] |
(in thousands) |  | 2015 |  |  | 2014 |
Commitments to extend credit: |  |  |  |  |  |  |  |
Future loan commitments |  | $ | 14,912 |  |  | $ | 19,734 |
Home equity lines of credit |  |  | 25,588 |  |  |  | 23,608 |
Unused lines of credit |  |  | 22,497 |  |  |  | 33,923 |
Undisbursed construction loans |  |  | 21,337 |  |  |  | 6,071 |
Financial standby letters of credit |  |  | 1,882 |  |  |  | 1,125 |
|  | $ | 86,216 |  |  | $ | 84,461 |

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