Shareholders' Equity, Compliance with Regulatory Capital Requirements (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Total Capital to Risk Weighted Assets [Abstract]
Actual Amount	$ 291,152	$ 266,533
Current Regulatory Capital Requirement, Amount	$ 190,493	$ 164,911
Total Capital to Risk Weighted Assets, Ratio [Abstract]
Actual Ratio	12.23%	12.93%
Current Regulatory Capital Requirement, Ratio	8.00%	8.00%
Total Common Equity Tier 1 Capital [Abstract]
Actual Amount	$ 251,240
Current Regulatory Capital Requirement, Amount	$ 107,152
Total Common Equity Tier 1 Capital, Ratio [Abstract]
Actual Ratio	10.55%
Current Regulatory Capital Requirement, Ratio	4.50%
Tier 1 Capital to Risk Weighted Assets [Abstract]
Actual Amount	$ 261,240	$ 240,645
Current Regulatory Capital Requirement, Amount	$ 142,870	$ 82,456
Tier 1 Capital to Risk Weighted Assets, Ratio [Abstract]
Actual Ratio	10.97%	11.67%
Current Regulatory Capital Requirement Ratio	6.00%	4.00%
Tier 1 Capital to Average Assets [Abstract]
Actual Amount	$ 261,240	$ 240,645
Current Regulatory Capital Requirement, Amount	$ 101,525	$ 91,219
Tier 1 Capital to Average Assets, Ratio [Abstract]
Actual Ratio	10.29%	10.55%
Current Regulatory Capital Requirement, Ratio	4.00%	4.00%
Bank [Member]
Total Capital to Risk Weighted Assets [Abstract]
Actual Amount	$ 290,941	$ 266,203
Current Regulatory Capital Requirement, Amount	190,480	164,887
Well Capitalized Under Prompt Corrective Action, Amount	$ 238,101	$ 206,109
Total Capital to Risk Weighted Assets, Ratio [Abstract]
Actual Ratio	12.22%	12.92%
Current Regulatory Capital Requirement, Ratio	8.00%	8.00%
Well Capitalized Under Prompt Corrective Action, Ratio	10.00%	10.00%
Total Common Equity Tier 1 Capital [Abstract]
Actual Amount	$ 261,031
Current Regulatory Capital Requirement, Amount	107,145
Well Capitalized Under Prompt Corrective Action, Amount	$ 154,765
Total Common Equity Tier 1 Capital, Ratio [Abstract]
Actual Ratio	10.96%
Current Regulatory Capital Requirement, Ratio	4.50%
Well Capitalized Under Prompt Corrective Action, Ratio	6.50%
Tier 1 Capital to Risk Weighted Assets [Abstract]
Actual Amount	$ 261,031	$ 240,319
Current Regulatory Capital Requirement, Amount	142,860	82,444
Well Capitalized Under Prompt Corrective Action, Amount	$ 190,480	$ 123,665
Tier 1 Capital to Risk Weighted Assets, Ratio [Abstract]
Actual Ratio	10.96%	11.66%
Current Regulatory Capital Requirement Ratio	6.00%	4.00%
Well Capitalized Under Prompt Corrective Action, Ratio	8.00%	6.00%
Tier 1 Capital to Average Assets [Abstract]
Actual Amount	$ 261,031	$ 240,319
Current Regulatory Capital Requirement, Amount	101,402	91,062
Well Capitalized Under Prompt Corrective Action, Amount	$ 126,753	$ 113,827
Tier 1 Capital to Average Assets, Ratio [Abstract]
Actual Ratio	10.30%	10.56%
Current Regulatory Capital Requirement, Ratio	4.00%	4.00%
Well Capitalized Under Prompt Corrective Action, Ratio	5.00%	5.00%