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Note 14 - 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 To Be Adequately Capitalized Under Prompt Corrective Action Regulations |  |  | 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 |  | $ | 104,047 |  |  |  | 18.2 | % |  |  | N/A |  |  |  | N/A |  |  |  | N/A |  |  |  | N/A |
Bank |  |  | 91,006 |  |  |  | 16.3 |  |  | $ | 44,799 |  |  |  | 8.0 | % |  | $ | 55,999 |  |  |  | 10.0 | %
Common equity Tier 1 capital (to risk weighted assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consolidated |  |  | 88,899 |  |  |  | 15.6 |  |  |  | N/A |  |  |  | N/A |  |  |  | N/A |  |  |  | N/A |
Bank |  |  | 84,686 |  |  |  | 15.1 |  |  |  | 25,199 |  |  |  | 4.5 |  |  |  | 36,399 |  |  |  | 6.5 |
Tier 1 capital (to risk weighted assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consolidated |  |  | 97,399 |  |  |  | 17.1 |  |  |  | N/A |  |  |  | N/A |  |  |  | N/A |  |  |  | N/A |
Bank |  |  | 84,686 |  |  |  | 15.1 |  |  |  | 33,599 |  |  |  | 6.0 |  |  |  | 44,799 |  |  |  | 8.0 |
Tier 1 capital (to average assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consolidated |  |  | 97,399 |  |  |  | 12.2 |  |  |  | N/A |  |  |  | N/A |  |  |  | N/A |  |  |  | N/A |
Bank |  |  | 84,686 |  |  |  | 10.8 |  |  |  | 31,280 |  |  |  | 4.0 |  |  |  | 39,100 |  |  |  | 5.0 |
2014 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total capital (to risk weighted assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consolidated |  | $ | 99,607 |  |  |  | 17.4 | % |  | $ | 45,765 |  |  |  | 8.0 | % |  |  | N/A |  |  |  | N/A |
Bank |  |  | 87,670 |  |  |  | 15.6 |  |  |  | 44,935 |  |  |  | 8.0 |  |  | $ | 56,169 |  |  |  | 10.0 | %
Tier 1 capital (to risk weighted assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consolidated |  |  | 92,442 |  |  |  | 16.2 |  |  |  | 22,883 |  |  |  | 4.0 |  |  |  | N/A |  |  |  | N/A |
Bank |  |  | 80,637 |  |  |  | 14.4 |  |  |  | 22,468 |  |  |  | 4.0 |  |  |  | 33,701 |  |  |  | 6.0 |
Tier 1 capital (to average assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consolidated |  |  | 92,442 |  |  |  | 11.8 |  |  |  | 31,306 |  |  |  | 4.0 |  |  |  | N/A |  |  |  | N/A |
Bank |  |  | 80,637 |  |  |  | 10.5 |  |  |  | 30,702 |  |  |  | 4.0 |  |  |  | 38,377 |  |  |  | 5.0 |

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