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Note 21 - Regulatory Matters (Tables) | 12 Months Ended
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Dec. 31, 2015
Disclosure Text Block [Abstract] |
Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table Text Block] |
|  | Actual |  |  | Minimum Required for Capital Adequacy Purposes |  |  | Minimum Required to be Well Capitalized Under Prompt Corrective Action Regulations |
|  | Amount |  |  | Ratio |  |  | Amount |  |  | Ratio |  |  | Amount |  |  | Ratio |
2015 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total capital (to risk weighted assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consolidated |  | $ | 345,539 |  |  |  | 13.5 | % |  | $ | 205,602 |  |  |  | 8.0 | % |  | $ NA |  |  | NA |
Bank |  |  | 347,433 |  |  |  | 13.5 |  |  |  | 205,624 |  |  |  | 8.0 |  |  |  | 257,030 |  |  |  | 10.0 | %
Tier 1 capital (to risk weighted assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consolidated |  |  | 329,858 |  |  |  | 12.8 |  |  |  | 102,801 |  |  |  | 4.0 |  |  | NA |  |  | NA |
Bank |  |  | 331,752 |  |  |  | 12.9 |  |  |  | 102,812 |  |  |  | 4.0 |  |  |  | 154,218 |  |  |  | 6.0 |
Common equity (to risk weighted assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consolidated |  |  | 280,171 |  |  |  | 10.9 |  |  |  | 115,804 |  |  |  | 4.5 |  |  | NA |  |  | NA |
Bank |  |  | 331,752 |  |  |  | 12.9 |  |  |  | 115,664 |  |  |  | 4.5 |  |  |  | 167,070 |  |  |  | 6.5 |
Tier 1 capital (to average assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consolidated |  |  | 329,858 |  |  |  | 11.6 |  |  |  | 114,138 |  |  |  | 4.0 |  |  | NA |  |  | NA |
Bank |  |  | 331,752 |  |  |  | 11.6 |  |  |  | 114,280 |  |  |  | 4.0 |  |  |  | 142,850 |  |  |  | 5.0 |
2014 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total capital (to risk weighted assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consolidated |  | $ | 334,793 |  |  |  | 14.4 | % |  | $ | 185,553 |  |  |  | 8.0 | % |  | $ NA |  |  | NA |
Bank |  |  | 332,749 |  |  |  | 14.4 |  |  |  | 185,309 |  |  |  | 8.0 |  |  |  | 231,636 |  |  |  | 10.0 | %
Tier 1 capital (to risk weighted assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consolidated |  |  | 314,752 |  |  |  | 13.6 |  |  |  | 92,777 |  |  |  | 4.0 |  |  | NA |  |  | NA |
Bank |  |  | 312,708 |  |  |  | 13.5 |  |  |  | 92,655 |  |  |  | 4.0 |  |  |  | 138,982 |  |  |  | 6.0 |
Tier 1 capital (to average assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consolidated |  |  | 314,752 |  |  |  | 11.2 |  |  |  | 112,949 |  |  |  | 4.0 |  |  | NA |  |  | NA |
Bank |  |  | 312,708 |  |  |  | 11.1 |  |  |  | 112,856 |  |  |  | 4.0 |  |  |  | 141,070 |  |  |  | 5.0 |

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