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Regulatory Capital Requirements (Tables) | 12 Months Ended
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Dec. 31, 2017
Regulatory Capital Requirements [Abstract] |
Summary of Bank's Actual Capital Amounts and Ratios | The Company’s and the Bank’s actual capital amounts and ratios as of December 31, 2017 and 2016 are also presented.
|  | Actual |  |  | Minimum Capital Required |  |  | Required to be Considered Well Capitalized |
2017 |  | Amount |  |  | Ratio |  |  | Amount |  |  | Ratio |  |  | Amount |  |  | Ratio |
Total capital to risk weighted assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Company |  | $ | 410,831 |  |  |  | 15.98 | % |  | $ | 205,661 |  |  |  | 8.00 | % |  | N/A |  |  | N/A |
Bank |  |  | 367,972 |  |  |  | 14.28 | % |  |  | 206,083 |  |  |  | 8.00 | % |  |  | 257,604 |  |  |  | 10.00 | %
Tier 1 capital to risk weighted assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Company |  | $ | 392,520 |  |  |  | 15.27 | % |  | $ | 154,246 |  |  |  | 6.00 | % |  | N/A |  |  | N/A |
Bank |  |  | 349,662 |  |  |  | 13.57 | % |  |  | 154,562 |  |  |  | 6.00 | % |  |  | 206,083 |  |  |  | 8.00 | %
Common Equity Tier 1 (CET1) to risk weighted assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Company |  | $ | 353,995 |  |  |  | 13.77 | % |  | $ | 115,684 |  |  |  | 4.50 | % |  | N/A |  |  | N/A |
Bank |  |  | 349,662 |  |  |  | 13.57 | % |  |  | 115,922 |  |  |  | 4.50 | % |  |  | 167,442 |  |  |  | 6.50 | %
Tier 1 capital to average assets: |  |  |  |  |  | . |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Company |  | $ | 392,520 |  |  |  | 12.25 | % |  | $ | 128,178 |  |  |  | 4.00 | % |  | N/A |  |  | N/A |
Bank |  |  | 349,662 |  |  |  | 10.89 | % |  |  | 128,409 |  |  |  | 4.00 | % |  |  | 160,511 |  |  |  | 5.00 | %
|  | Actual |  |  | Minimum Capital Required |  |  | Required to be Considered Well Capitalized |
2016 |  | Amount |  |  | Ratio |  |  | Amount |  |  | Ratio |  |  | Amount |  |  | Ratio |
Total capital to risk weighted assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Company |  | $ | 316,314 |  |  |  | 13.28 | % |  | $ | 190,257 |  |  |  | 8.00 | % |  | N/A |  |  | N/A |
Bank |  |  | 325,465 |  |  |  | 13.61 | % |  |  | 191,267 |  |  |  | 8.00 | % |  |  | 239,084 |  |  |  | 10.00 | %
Tier 1 capital to risk weighted assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Company |  | $ | 304,324 |  |  |  | 12.78 | % |  | $ | 142,895 |  |  |  | 6.00 | % |  | N/A |  |  | N/A |
Bank |  |  | 313,474 |  |  |  | 13.11 | % |  |  | 143,450 |  |  |  | 6.00 | % |  |  | 191,267 |  |  |  | 8.00 | %
Common Equity Tier 1 (CET1) to risk weighted assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Company |  | $ | 266,760 |  |  |  | 11.20 | % |  | $ | 107,171 |  |  |  | 4.50 | % |  | N/A |  |  | N/A |
Bank |  |  | 313,474 |  |  |  | 13.11 | % |  |  | 107,588 |  |  |  | 4.50 | % |  |  | 155,404 |  |  |  | 6.50 | %
Tier 1 capital to average assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Company |  | $ | 304,324 |  |  |  | 10.07 | % |  | $ | 120,850 |  |  |  | 4.00 | % |  | N/A |  |  | N/A |
Bank |  |  | 313,474 |  |  |  | 10.35 | % |  |  | 121,169 |  |  |  | 4.00 | % |  |  | 151,461 |  |  |  | 5.00 | %

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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=84167132&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=84167132&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=84167132&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=84167132&loc=SL5958577-112826 + Details
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