Regulatory Matters - Schedule of Regulatory Capital (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Total capital to risk-weighted assets: Amount
Actual	$ 60,628	$ 58,605
For capital adequacy purposes	38,880	36,945
To be well capitalized	48,600	46,181
Tier 1 capital to risk-weighted assets: Amount
Actual	54,855	53,050
For capital adequacy purposes	29,160	27,709
To be well capitalized	38,880	36,945
Common Equity Tier 1 capital to risk-weighted assets: Amount
Actual	54,855	53,050
For capital adequacy purposes	21,870	20,781
To be well capitalized	31,590	30,018
Tier 1 capital to average assets: Amount
Actual	54,855	53,050
For capital adequacy purposes	28,215	27,081
To be well capitalized	$ 35,269	$ 33,852
Total capital to risk-weighted assets: Ratio
Actual	12.47%	12.69%
For capital adequacy purposes	8.00%	8.00%
To be well capitalized	10.00%	10.00%
Tier 1 capital to risk-weighted assets: Ratios
Actual	11.29%	11.49%
For capital adequacy purposes	6.00%	6.00%
To be well capitalized	8.00%	8.00%
Common Equity Tier 1 capital to risk-weighted assets: Ratio
Actual	11.29%	11.49%
For capital adequacy purposes	4.50%	4.50%
To be well capitalized	6.50%	6.50%
Tier 1 capital to average assets: Ratio
Actual	7.78%	7.84%
For capital adequacy purposes	4.00%	4.00%
To be well capitalized	5.00%	5.00%