Dividend Restrictions and Regulatory Capital (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Company
Common Equity Tier 1 Capital, Amount [Abstract]
Actual Amount	$ 158,350	$ 150,916
Required for Capital Adequacy Purposes	$ 60,561	$ 52,739
Common Equity Tier 1 Capital, Ratios [Abstract]
Actual Ratio	11.77%	12.88%
Required for Capital Adequacy Purposes	5.125%	4.50%
Tier 1 Capital, Actual Amount [Abstract]
Actual Amount	$ 186,074	$ 178,538
Required for Capital Adequacy Purposes	$ 80,748	$ 70,319
Tier 1 Capital, Ratios [Abstract]
Actual Ratio	13.83%	15.23%
Required for Capital Adequacy Purposes	6.625%	6.00%
Total Capital, Actual Amount [Abstract]
Actual Amount	$ 199,375	$ 191,542
Required for Capital Adequacy Purposes	$ 107,664	$ 93,758
Total Capital, Ratios [Abstract]
Actual Ratio	14.81%	16.34%
Required for Capital Adequacy Purposes	8.625%	8.00%
Leverage Capital, Actual Amount [Abstract]
Actual Amount	$ 186,074	$ 178,538
Required for Capital Adequacy Purposes	$ 63,761	$ 59,260
Leverage Capital, Ratios [Abstract]
Actual Ratio	11.67%	12.05%
Required for Capital Adequacy Purposes	4.00%	4.00%
Bank
Common Equity Tier 1 Capital, Amount [Abstract]
Actual Amount	$ 172,927	$ 170,741
Required for Capital Adequacy Purposes	60,216	52,691
To Be Well Capitalized Under Prompt Corrective Action Provisions	$ 86,979	$ 76,109
Common Equity Tier 1 Capital, Ratios [Abstract]
Actual Ratio	12.92%	14.58%
Required for Capital Adequacy Purposes	5.125%	4.50%
To Be Well Capitalized Under Prompt Corrective Action Provisions	6.50%	6.50%
Tier 1 Capital, Actual Amount [Abstract]
Actual Amount	$ 172,927	$ 170,741
Required for Capital Adequacy Purposes	80,288	70,255
To Be Well Capitalized Under Prompt Corrective Action Provisions	$ 107,051	$ 93,673
Tier 1 Capital, Ratios [Abstract]
Actual Ratio	12.92%	14.58%
Required for Capital Adequacy Purposes	6.625%	6.00%
To Be Well Capitalized Under Prompt Corrective Action Provisions	8.00%	8.00%
Total Capital, Actual Amount [Abstract]
Actual Amount	$ 185,931	$ 183,526
Required for Capital Adequacy Purposes	107,051	93,673
To Be Well Capitalized Under Prompt Corrective Action Provisions	$ 133,814	$ 117,091
Total Capital, Ratios [Abstract]
Actual Ratio	13.89%	15.67%
Required for Capital Adequacy Purposes	8.625%	8.00%
To Be Well Capitalized Under Prompt Corrective Action Provisions	10.00%	10.00%
Leverage Capital, Actual Amount [Abstract]
Actual Amount	$ 172,927	$ 170,741
Required for Capital Adequacy Purposes	63,571	59,187
To Be Well Capitalized Under Prompt Corrective Action Provisions	$ 79,464	$ 73,984
Leverage Capital, Ratios [Abstract]
Actual Ratio	10.88%	11.54%
Required for Capital Adequacy Purposes	4.00%	4.00%
To Be Well Capitalized Under Prompt Corrective Action Provisions	5.00%	5.00%