Shareholders' Equity, Compliance with Regulatory Capital Requirements (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Total Capital to Risk Weighted Assets [Abstract]
Actual Amount	$ 400,258	$ 346,845
Current Regulatory Capital Requirement, Amount	$ 259,028	$ 243,459
Total Capital to Risk Weighted Assets, Ratio [Abstract]
Actual Ratio	12.36%	11.40%
Current Regulatory Capital Requirement, Ratio	8.00%	8.00%
Total Common Equity Tier 1 Capital [Abstract]
Actual Amount	$ 349,601	$ 298,588
Current Regulatory Capital Requirement, Amount	$ 145,703	$ 136,945
Total Common Equity Tier 1 Capital, Ratio [Abstract]
Actual Ratio	10.80%	9.81%
Current Regulatory Capital Requirement, Ratio	4.50%	4.50%
Tier 1 Capital to Risk Weighted Assets [Abstract]
Actual Amount	$ 359,601	$ 308,588
Current Regulatory Capital Requirement, Amount	$ 194,271	$ 182,594
Tier 1 Capital to Risk Weighted Assets, Ratio [Abstract]
Actual Ratio	11.11%	10.14%
Current Regulatory Capital Requirement Ratio	6.00%	6.00%
Tier 1 Capital to Average Assets [Abstract]
Actual Amount	$ 359,601	$ 308,588
Current Regulatory Capital Requirement, Amount	$ 145,255	$ 135,949
Tier 1 Capital to Average Assets, Ratio [Abstract]
Actual Ratio	9.90%	9.08%
Current Regulatory Capital Requirement, Ratio	3.00%	3.00%
Bank [Member]
Total Capital to Risk Weighted Assets [Abstract]
Actual Amount	$ 399,230	$ 346,763
Current Regulatory Capital Requirement, Amount	259,012	243,455
Well Capitalized Under Prompt Corrective Action, Amount	$ 323,765	$ 304,319
Total Capital to Risk Weighted Assets, Ratio [Abstract]
Actual Ratio	12.33%	11.39%
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	$ 358,576	$ 308,507
Current Regulatory Capital Requirement, Amount	145,694	136,944
Well Capitalized Under Prompt Corrective Action, Amount	$ 210,447	$ 197,807
Total Common Equity Tier 1 Capital, Ratio [Abstract]
Actual Ratio	11.08%	10.14%
Current Regulatory Capital Requirement, Ratio	4.50%	4.50%
Well Capitalized Under Prompt Corrective Action, Ratio	6.50%	6.50%
Tier 1 Capital to Risk Weighted Assets [Abstract]
Actual Amount	$ 358,576	$ 308,507
Current Regulatory Capital Requirement, Amount	194,259	182,591
Well Capitalized Under Prompt Corrective Action, Amount	$ 259,012	$ 243,455
Tier 1 Capital to Risk Weighted Assets, Ratio [Abstract]
Actual Ratio	11.08%	10.14%
Current Regulatory Capital Requirement Ratio	6.00%	6.00%
Well Capitalized Under Prompt Corrective Action, Ratio	8.00%	8.00%
Tier 1 Capital to Average Assets [Abstract]
Actual Amount	$ 358,576	$ 308,507
Current Regulatory Capital Requirement, Amount	145,079	134,822
Well Capitalized Under Prompt Corrective Action, Amount	$ 181,349	$ 168,527
Tier 1 Capital to Average Assets, Ratio [Abstract]
Actual Ratio	9.89%	9.15%
Current Regulatory Capital Requirement, Ratio	3.00%	3.00%
Well Capitalized Under Prompt Corrective Action, Ratio	5.00%	5.00%

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The amount of total capital as defined in the regulations.

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Total Capital divided by risk weighted assets as defined in the regulations.

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Amount of Common Equity Tier One Risk-based Capital, as defined by regulatory framework.

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