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Regulatory Matters (Details) - USD ($) $ in Thousands | Dec. 31, 2017 | Dec. 31, 2016
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The Bank [Member] |  |
Summary of capital amounts and ratios of the Bank and the Company and the regulatory minimum requirements |  |
Total Capital (to risk weighted assets) Actual | $ 175,016 | $ 132,839
Total Capital (to risk weighted assets) Actual, Ratio | 12.99% | 11.69%
Total Capital (to risk weighted assets) For capital adequacy purposes minimum | $ 107,749 | $ 90,910
Total Capital (to risk weighted assets) For capital adequacy purposes minimum, Ratio | 8.00% | 8.00%
Total Capital (to risk weighted assets) To be well capitalized under prompt corrective action provisions minimum | $ 134,686 | $ 113,628
Total Capital (to risk weighted assets) To be well capitalized under prompt corrective action provisions minimum, Ratio | 10.00% | 10.00%
Tier 1 Capital (to risk weighted assets) Actual | $ 159,493 | $ 118,626
Tier 1 Capital (to risk weighted assets) Actual, Ratio | 11.84% | 10.44%
Tier 1 Capital (to risk weighted assets) For capital adequacy purposes minimum | $ 80,812 | $ 68,183
Tier 1 Capital (to risk weighted assets) For capital adequacy purposes minimum, Ratio | 6.00% | 6.00%
Tier 1 Capital (to risk weighted assets) To be well capitalized under prompt corrective action provisions minimum | $ 107,749 | $ 90,910
Tier 1 Capital (to risk weighted assets) To be well capitalized under prompt corrective action provisions minimum, Ratio | 8.00% | 8.00%
Common Equity Tier 1 Capital (to risk weighted assets) Actual | $ 159,493 | $ 118,626
Common Equity Tier 1 Capital (to risk weighted assets) Actual, Ratio | 11.84% | 10.44%
Common Equity Tier 1 Capital (to risk weighted assets) For capital adequacy purposes minimum | $ 60,609 | $ 51,137
Common Equity Tier 1 Capital (to risk weighted assets) For capital adequacy purposes minimum, Ratio | 4.50% | 4.50%
Common Equity Tier 1 Capital (to risk weighted assets) To be well capitalized under prompt corrective action provisions minimum | $ 87,546 | $ 73,864
Common Equity Tier 1 Capital (to risk weighted assets) To be well capitalized under prompt corrective action provisions minimum, Ratio | 6.50% | 6.50%
Tier 1 Capital (to average assets) Actual | $ 159,493 | $ 118,626
Tier 1 Capital (to average assets), Actual Ratio | 10.04% | 9.08%
Tier 1 Capital (to average assets) For capital adequacy purposes minimum | $ 63,573 | $ 52,273
Tier 1 Capital (to average assets) For capital adequacy purposes minimum, Ratio | 4.00% | 4.00%
Tier 1 Capital (to average assets) To be well capitalized under prompt corrective action provisions minimum | $ 79,466 | $ 65,342
Tier 1 Capital (to average assets) To be well capitalized under prompt corrective action provisions minimum, Ratio | 5.00% | 5.00%
The Company [Member] |  |
Summary of capital amounts and ratios of the Bank and the Company and the regulatory minimum requirements |  |
Total Capital (to risk weighted assets) Actual | $ 178,665 | $ 137,588
Total Capital (to risk weighted assets) Actual, Ratio | 13.27% | 12.11%
Total Capital (to risk weighted assets) For capital adequacy purposes minimum | $ 107,749 | $ 90,910
Total Capital (to risk weighted assets) For capital adequacy purposes minimum, Ratio | 8.00% | 8.00%
Total Capital (to risk weighted assets) To be well capitalized under prompt corrective action provisions minimum |  |
Total Capital (to risk weighted assets) To be well capitalized under prompt corrective action provisions minimum, Ratio |  |
Tier 1 Capital (to risk weighted assets) Actual | $ 163,142 | $ 123,375
Tier 1 Capital (to risk weighted assets) Actual, Ratio | 12.11% | 10.86%
Tier 1 Capital (to risk weighted assets) For capital adequacy purposes minimum | $ 80,812 | $ 68,183
Tier 1 Capital (to risk weighted assets) For capital adequacy purposes minimum, Ratio | 6.00% | 6.00%
Tier 1 Capital (to risk weighted assets) To be well capitalized under prompt corrective action provisions minimum |  |
Tier 1 Capital (to risk weighted assets) To be well capitalized under prompt corrective action provisions minimum, Ratio |  |
Common Equity Tier 1 Capital (to risk weighted assets) Actual | $ 150,142 | $ 110,375
Common Equity Tier 1 Capital (to risk weighted assets) Actual, Ratio | 11.15% | 9.71%
Common Equity Tier 1 Capital (to risk weighted assets) For capital adequacy purposes minimum | $ 60,609 | $ 51,137
Common Equity Tier 1 Capital (to risk weighted assets) For capital adequacy purposes minimum, Ratio | 4.50% | 4.50%
Common Equity Tier 1 Capital (to risk weighted assets) To be well capitalized under prompt corrective action provisions minimum |  |
Common Equity Tier 1 Capital (to risk weighted assets) To be well capitalized under prompt corrective action provisions minimum, Ratio |  |
Tier 1 Capital (to average assets) Actual | $ 163,142 | $ 123,375
Tier 1 Capital (to average assets), Actual Ratio | 10.26% | 9.42%
Tier 1 Capital (to average assets) For capital adequacy purposes minimum | $ 63,573 | $ 52,392
Tier 1 Capital (to average assets) For capital adequacy purposes minimum, Ratio | 4.00% | 4.00%
Tier 1 Capital (to average assets) To be well capitalized under prompt corrective action provisions minimum |  |
Tier 1 Capital (to average assets) To be well capitalized under prompt corrective action provisions minimum, Ratio |  |

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