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Note 12 - Regulatory Matters (Tables) | 6 Months Ended
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Jun. 30, 2018
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 |
June 30, 2018 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total capital (to risk weighted assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consolidated |  | $ | 396,334 |  |  |  | 13.2 | % |  | $ | 240,303 |  |  |  | 8.0 | % |  | $ | NA |  |  |  | NA |
Bank |  |  | 387,833 |  |  |  | 12.9 |  |  |  | 240,104 |  |  |  | 8.0 |  |  |  | 300,130 |  |  |  | 10.0 | %
Tier 1 capital (to risk weighted assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consolidated |  |  | 375,167 |  |  |  | 12.5 |  |  |  | 180,227 |  |  |  | 6.0 |  |  |  | NA |  |  |  | NA |
Bank |  |  | 366,666 |  |  |  | 12.2 |  |  |  | 180,078 |  |  |  | 6.0 |  |  |  | 240,104 |  |  |  | 8.0 |
Common equity tier 1 (to risk weighted assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consolidated |  |  | 331,383 |  |  |  | 11.0 |  |  |  | 135,170 |  |  |  | 4.5 |  |  |  | NA |  |  |  | NA |
Bank |  |  | 366,666 |  |  |  | 12.2 |  |  |  | 135,059 |  |  |  | 4.5 |  |  |  | 195,085 |  |  |  | 6.5 |
Tier 1 capital (to average assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consolidated |  |  | 375,167 |  |  |  | 11.8 |  |  |  | 127,105 |  |  |  | 4.0 |  |  |  | NA |  |  |  | NA |
Bank |  |  | 366,666 |  |  |  | 11.6 |  |  |  | 127,036 |  |  |  | 4.0 |  |  |  | 158,794 |  |  |  | 5.0 |
December 31, 2017 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total capital (to risk weighted assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consolidated |  | $ | 379,417 |  |  |  | 12.9 | % |  | $ | 235,723 |  |  |  | 8.0 | % |  | $ | NA |  |  |  | NA |
Bank |  |  | 371,346 |  |  |  | 12.6 |  |  |  | 235,515 |  |  |  | 8.0 |  |  |  | 294,393 |  |  |  | 10.0 | %
Tier 1 capital (to risk weighted assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consolidated |  |  | 359,915 |  |  |  | 12.2 |  |  |  | 176,792 |  |  |  | 6.0 |  |  |  | NA |  |  |  | NA |
Bank |  |  | 351,844 |  |  |  | 12.0 |  |  |  | 176,636 |  |  |  | 6.0 |  |  |  | 235,515 |  |  |  | 8.0 |
Common equity tier 1 (to risk weighted assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consolidated |  |  | 316,472 |  |  |  | 10.7 |  |  |  | 132,594 |  |  |  | 4.5 |  |  |  | NA |  |  |  | NA |
Bank |  |  | 351,844 |  |  |  | 12.0 |  |  |  | 132,477 |  |  |  | 4.5 |  |  |  | 191,356 |  |  |  | 6.5 |
Tier 1 capital (to average assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consolidated |  |  | 359,915 |  |  |  | 11.3 |  |  |  | 127,782 |  |  |  | 4.0 |  |  |  | NA |  |  |  | NA |
Bank |  |  | 351,844 |  |  |  | 11.0 |  |  |  | 127,698 |  |  |  | 4.0 |  |  |  | 159,623 |  |  |  | 5.0 |

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