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12. Regulatory Matters (Tables) | 12 Months Ended
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Dec. 31, 2018
Banking and Thrift [Abstract] |
Bank's actual capital amounts and ratios |
(Dollars in thousands) |  |  |  |  |  |  |  |  |  |  |  |
|  | Actual |  | For Capital Adequacy Purposes |  | To Be Well Capitalized Under Prompt Corrective Action Provisions
|  | Amount |  | Ratio |  | Amount |  | Ratio |  | Amount |  | Ratio
As of December 31, 2018: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total Capital (to Risk-Weighted Assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consolidated |  | $ | 149,076 |  |  |  | 16.15 | % |  |  | 91,133 |  |  |  | 9.88 | % |  |  | N/A |  |  |  | N/A |
Bank |  | $ | 146,640 |  |  |  | 15.91 | % |  |  | 90,995 |  |  |  | 9.88 | % |  |  | 92,147 |  |  |  | 10.00 | %
Tier 1 Capital (to Risk-Weighted Assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consolidated |  | $ | 142,631 |  |  |  | 15.46 | % |  |  | 72,676 |  |  |  | 7.88 | % |  |  | N/A |  |  |  | N/A |
Bank |  | $ | 140,195 |  |  |  | 15.21 | % |  |  | 72,566 |  |  |  | 7.88 | % |  |  | 73,717 |  |  |  | 8.00 | %
Tier 1 Capital (to Average Assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consolidated |  | $ | 142,631 |  |  |  | 13.05 | % |  |  | 43,723 |  |  |  | 4.00 | % |  |  | N/A |  |  |  | N/A |
Bank |  | $ | 140,195 |  |  |  | 12.76 | % |  |  | 43,950 |  |  |  | 4.00 | % |  |  | 54,937 |  |  |  | 5.00 | %
Common Equity Tier 1 (to Risk-Weighted Assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consolidated |  | $ | 122,631 |  |  |  | 13.29 | % |  |  | 58,833 |  |  |  | 6.38 | % |  |  | N/A |  |  |  | N/A |
Bank |  | $ | 140,195 |  |  |  | 15.21 | % |  |  | 58,744 |  |  |  | 6.38 | % |  |  | 59,895 |  |  |  | 6.50 | %
(Dollars in thousands) |  |  |  |  |  |  |  |  |  |  |  |
|  | Actual |  | For Capital Adequacy Purposes |  | To Be Well Capitalized Under Prompt Corrective Action Provisions
|  | Amount |  | Ratio |  | Amount |  | Ratio |  | Amount |  | Ratio
As of December 31, 2017: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total Capital (to Risk-Weighted Assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consolidated |  | $ | 138,492 |  |  |  | 16.06 | % |  |  | 79,758 |  |  |  | 9.25 | % |  |  | N/A |  |  |  | N/A |
Bank |  | $ | 136,299 |  |  |  | 15.83 | % |  |  | 79,627 |  |  |  | 9.25 | % |  |  | 86,084 |  |  |  | 10.00 | %
Tier 1 Capital (to Risk-Weighted Assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consolidated |  | $ | 132,126 |  |  |  | 15.32 | % |  |  | 62,513 |  |  |  | 7.25 | % |  |  | N/A |  |  |  | N/A |
Bank |  | $ | 129,933 |  |  |  | 15.09 | % |  |  | 62,411 |  |  |  | 7.25 | % |  |  | 68,867 |  |  |  | 8.00 | %
Tier 1 Capital (to Average Assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consolidated |  | $ | 132,126 |  |  |  | 11.94 | % |  |  | 44,255 |  |  |  | 4.00 | % |  |  | N/A |  |  |  | N/A |
Bank |  | $ | 129,933 |  |  |  | 11.69 | % |  |  | 44,475 |  |  |  | 4.00 | % |  |  | 55,594 |  |  |  | 5.00 | %
Common Equity Tier 1 (to Risk-Weighted Assets) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consolidated |  | $ | 112,126 |  |  |  | 13.00 | % |  |  | 49,579 |  |  |  | 5.75 | % |  |  | N/A |  |  |  | N/A |
Bank |  | $ | 129,933 |  |  |  | 15.09 | % |  |  | 49,498 |  |  |  | 5.75 | % |  |  | 55,954 |  |  |  | 6.50 | %

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