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12. Regulatory Matters (Tables) | 12 Months Ended
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Dec. 31, 2016
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, 2016: |  |  |  |  |  |  |  |  |  |  |
Total Capital (to Risk-Weighted Assets) |  |  |  |  |  |  |  |  |  |  |
Consolidated | $ | 131,991 |  | 16.12% |  | 65,508 |  | 8.00% |  | N/A |  | N/A
Bank | $ | 129,035 |  | 15.78% |  | 65,426 |  | 8.00% |  | 81,782 |  | 10.00%
Tier 1 Capital (to Risk-Weighted Assets) |  |  |  |  |  |  |  |  |  |  |  |
Consolidated | $ | 124,441 |  | 15.20% |  | 49,131 |  | 6.00% |  | N/A |  | N/A
Bank | $ | 121,485 |  | 14.85% |  | 49,069 |  | 6.00% |  | 65,426 |  | 8.00%
Tier 1 Capital (to Average Assets) |  |  |  |  |  |  |  |  |  |  |  |
Consolidated | $ | 124,441 |  | 11.19% |  | 44,488 |  | 4.00% |  | N/A |  | N/A
Bank | $ | 121,485 |  | 10.88% |  | 44,677 |  | 4.00% |  | 55,846 |  | 5.00%
Common Equity Tier 1 (to Risk-Weighted Assets) |  |  |  |  |  |  |  |  |  |  |  |
Consolidated | $ | 104,441 |  | 12.75% |  | 36,848 |  | 4.50% |  | N/A |  | N/A
Bank | $ | 121,485 |  | 14.85% |  | 36,802 |  | 4.50% |  | 53,158 |  | 6.50%
As of December 31, 2015: |  |  |  |  |  |  |  |  |  |  |  |
Total Capital (to Risk-Weighted Assets) |  |  |  |  |  |  |  |  |  |  |  |
Consolidated | $ | 129,203 |  | 16.63% |  | 62,137 |  | 8.00% |  | N/A |  | N/A
Bank | $ | 124,910 |  | 16.11% |  | 62,026 |  | 8.00% |  | 77,532 |  | 10.00%
Tier 1 Capital (to Risk-Weighted Assets) |  |  |  |  |  |  |  |  |  |  |  |
Consolidated | $ | 119,354 |  | 15.37% |  | 46,603 |  | 6.00% |  | N/A |  | N/A
Bank | $ | 115,160 |  | 14.85% |  | 46,519 |  | 6.00% |  | 62,026 |  | 8.00%
Tier 1 Capital (to Average Assets) |  |  |  |  |  |  |  |  |  |  |  |
Consolidated | $ | 119,354 |  | 11.44% |  | 41,743 |  | 4.00% |  | N/A |  | N/A
Bank | $ | 115,160 |  | 11.03% |  | 41,776 |  | 4.00% |  | 52,220 |  | 5.00%
Common Equity Tier 1 (to Risk-Weighted Assets) |  |  |  |  |  |  |  |  |  |  |  |
Consolidated | $ | 99,354 |  | 12.79% |  | 34,952 |  | 4.50% |  | N/A |  | N/A
Bank | $ | 115,160 |  | 14.85% |  | 34,890 |  | 4.50% |  | 50,396 |  | 6.50%

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- Definition Tabular disclosure of the capital amounts and ratios as of the balance sheet date, indicating whether the entity or entities are in compliance with regulatory capital requirements, by entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=35709795&loc=SL5958570-112826 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=35709795&loc=SL5958568-112826 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1H -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=35709795&loc=d3e65071-112826 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1G -URI http://asc.fasb.org/extlink&oid=35709795&loc=SL5958577-112826 + Details
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