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Note 21 - Regulatory Matters (Tables) | 12 Months Ended
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Dec. 31, 2016
Notes Tables |
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 |
2016 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total capital (to risk weighted assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consolidated |  | $ | 354,278 |  |  |  | 13.1 | % |  | $ | 215,819 |  |  |  | 8.0 | % |  | $ | NA |  |  |  | NA |
Bank |  |  | 353,243 |  |  |  | 13.1 |  |  |  | 215,605 |  |  |  | 8.0 |  |  |  | 269,506 |  |  |  | 10.0 | %
Tier 1 capital (to risk weighted assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consolidated |  |  | 336,316 |  |  |  | 12.5 |  |  |  | 161,864 |  |  |  | 6.0 |  |  |  | NA |  |  |  | NA |
Bank |  |  | 335,282 |  |  |  | 12.4 |  |  |  | 161,704 |  |  |  | 6.0 |  |  |  | 215,605 |  |  |  | 8.0 |
Common equity (to risk weighted assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consolidated |  |  | 293,555 |  |  |  | 10.9 |  |  |  | 121,398 |  |  |  | 4.5 |  |  |  | NA |  |  |  | NA |
Bank |  |  | 335,282 |  |  |  | 12.4 |  |  |  | 121,278 |  |  |  | 4.5 |  |  |  | 175,179 |  |  |  | 6.5 |
Tier 1 capital (to average assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consolidated |  |  | 336,316 |  |  |  | 11.2 |  |  |  | 120,486 |  |  |  | 4.0 |  |  |  | NA |  |  |  | NA |
Bank |  |  | 335,282 |  |  |  | 11.1 |  |  |  | 120,383 |  |  |  | 4.0 |  |  |  | 150,479 |  |  |  | 5.0 |
|  | 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 |  |  |  | 154,201 |  |  |  | 6.0 |  |  |  | NA |  |  |  | NA |
Bank |  |  | 331,752 |  |  |  | 12.9 |  |  |  | 154,218 |  |  |  | 6.0 |  |  |  | 205,624 |  |  |  | 8.0 |
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 |

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