Shareholders' Equity (Schedule of Consolidated and Affiliate Bank Actual Capital and Minimum Required Levels) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2016	Dec. 31, 2015
Consolidated
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Minimum Capital Required for Capital Adequacy Ratio, Capital Conservation Buffer			0.00%
Actual Capital Required for Capital Adequacy Ratio, Capital Conservation Buffer		0.625%
Total Capital (to Risk Weighted Assets)
Actual Amount of Total Capital (to Risk Weighted Assets)		$ 307,754	$ 247,825
Actual Ratio of Total Capital (to Risk Weighted Assets)		13.30%	13.71%
Minimum Required For Capital Adequacy Purposes: Amount, Total Capital		$ 185,117	$ 144,563
Minimum Required For Capital Adequacy Purposes: Ratio, Total Capital (to Risk Weighted Assets)		8.00%	8.00%
Tier 1 (Core) Capital (to Risk Weighted Assets)
Actual Amount of Tier 1 Capital (to Risk Weighted Assets)		$ 292,946	$ 233,387
Actual Ratio of Tier 1 Capital (to Risk Weighted Assets)		12.66%	12.92%
Minimum Required For Capital Adequacy Purposes: Amount, Tier 1 Capital (to Risk Weighted Assets)		$ 138,838	$ 108,422
Minimum Required For Capital Adequacy Purposes: Ratio, Tier 1 Capital (to Risk Weighted Assets)		6.00%	6.00%
Common Tier 1, (CET 1) Capital Ratio (to Risk Weighted Assets)
Actual Amount of Common Tier 1 Capital (to Risk Weighted Assets)		$ 282,138	$ 228,233
Actual Ratio of Common Tier 1 Capital (to Risk Weighted Assets)		12.19%	12.63%
Minimum Required For Capital Adequacy Purposes: Amount, Common Tier 1 Capital (to Risk Weighted Assets)		$ 104,129	$ 81,317
Minimum Required For Capital Adequacy Purposes: Ratio, Common Tier 1 Capital (to Risk Weighted Assets)		4.50%	4.50%
Tier 1 Core Capital (to Average Assets)
Actual Amount of Tier 1 Capital (to Average Assets)		$ 292,946	$ 233,387
Actual Ratio of Tier 1 Capital (to Average Assets)		10.09%	10.15%
Minimum Required For Capital Adequacy Purposes: Amount, Tier 1 Capital (to Average Assets)		$ 116,165	$ 92,001
Minimum Required For Capital Adequacy Purposes: Ratio, Tier 1 Capital (to Average Assets)		4.00%	4.00%
Consolidated | Scenario, Forecast
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Maximum Capital Required for Capital Adequacy Ratio, Capital Conservation Buffer	2.50%
Bank
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Minimum Capital Required for Capital Adequacy Ratio, Capital Conservation Buffer			0.00%
Actual Capital Required for Capital Adequacy Ratio, Capital Conservation Buffer		0.625%
Total Capital (to Risk Weighted Assets)
Actual Amount of Total Capital (to Risk Weighted Assets)		$ 288,793	$ 217,723
Actual Ratio of Total Capital (to Risk Weighted Assets)		12.48%	12.08%
Minimum Required For Capital Adequacy Purposes: Amount, Total Capital		$ 185,104	$ 144,228
Minimum Required For Capital Adequacy Purposes: Ratio, Total Capital (to Risk Weighted Assets)		8.00%	8.00%
Minimum Required To Be Well- Capitalized Under Prompt Corrective Action Regulations: Amount, Total Capital (to Risk Weighted Assets)		$ 231,380	$ 180,285
Minimum Required To Be Well- Capitalized Under Prompt Corrective Action Regulations: Ratio, Total Capital (to Risk Weighted Assets)		10.00%	10.00%
Tier 1 (Core) Capital (to Risk Weighted Assets)
Actual Amount of Tier 1 Capital (to Risk Weighted Assets)		$ 273,985	$ 203,285
Actual Ratio of Tier 1 Capital (to Risk Weighted Assets)		11.84%	11.28%
Minimum Required For Capital Adequacy Purposes: Amount, Tier 1 Capital (to Risk Weighted Assets)		$ 138,828	$ 108,171
Minimum Required For Capital Adequacy Purposes: Ratio, Tier 1 Capital (to Risk Weighted Assets)		6.00%	6.00%
Minimum Required To Be Well- Capitalized Under Prompt Corrective Action Regulations: Amount, Tier 1 Capital (to Risk Weighted Assets)		$ 185,104	$ 144,228
Minimum Required To Be Well- Capitalized Under Prompt Corrective Action Regulations: Ratio, Tier 1 Capital (to Risk Weighted Assets)		8.00%	8.00%
Common Tier 1, (CET 1) Capital Ratio (to Risk Weighted Assets)
Actual Amount of Common Tier 1 Capital (to Risk Weighted Assets)		$ 273,985	$ 203,285
Actual Ratio of Common Tier 1 Capital (to Risk Weighted Assets)		11.84%	11.28%
Minimum Required For Capital Adequacy Purposes: Amount, Common Tier 1 Capital (to Risk Weighted Assets)		$ 104,121	$ 81,128
Minimum Required For Capital Adequacy Purposes: Ratio, Common Tier 1 Capital (to Risk Weighted Assets)		4.50%	4.50%
Minimum Required To Be Well- Capitalized Under Prompt Corrective Action Regulations: Amount, Common Tier 1 Capital (to Risk Weighted Assets)		$ 150,397	$ 117,185
Minimum Required To Be Well- Capitalized Under Prompt Corrective Action Regulations: Ratio, Common Tier 1 Capital (to Risk Weighted Assets)		6.50%	6.50%
Tier 1 Core Capital (to Average Assets)
Actual Amount of Tier 1 Capital (to Average Assets)		$ 273,985	$ 203,285
Actual Ratio of Tier 1 Capital (to Average Assets)		9.46%	8.87%
Minimum Required For Capital Adequacy Purposes: Amount, Tier 1 Capital (to Average Assets)		$ 115,853	$ 91,700
Minimum Required For Capital Adequacy Purposes: Ratio, Tier 1 Capital (to Average Assets)		4.00%	4.00%
Minimum Required To Be Well- Capitalized Under Prompt Corrective Action Regulations: Amount, Tier 1 Capital (to Average Assets)		$ 144,816	$ 114,625
Minimum Required To Be Well- Capitalized Under Prompt Corrective Action Regulations: Ratio, Tier 1 Capital (to Average Assets)		5.00%	5.00%
Bank | Scenario, Forecast
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Maximum Capital Required for Capital Adequacy Ratio, Capital Conservation Buffer	2.50%