Regulatory Matters (Schedule Of Capital Amounts And Ratios) (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Tier 1 Capital to Average Assets:
Tier 1 Capital to Average Assets, Actual Capital, Amount	$ 397,036	$ 353,684
Tier 1 Capital to Average Assets, Actual Capital, Ratio	9.40%	9.34%
Tier 1 Capital to Average Assets, Minimum Capital Adequacy Requirement, Amount	$ 169,015	$ 151,398
Tier 1 Capital to Average Assets, Minimum Capital Adequacy Requirement, Ratio	4.00%	4.00%
Common Equity Tier 1 to Risk Weighted Assets
Common Equity Tier 1 Capital to Risk Weighted Assets, Actual Capital, Amount	$ 397,036	$ 353,684
Common Equity Tier 1 Capital to Risk Weighted Assets, Actual Capital, Ratio	15.29%	15.28%
Common Equity Tier 1 Capital to Risk Weighted Assets, Minimum Capital Adequacy Requirement, Amount	$ 116,840	$ 104,128
Common Equity Tier 1 Capital to Risk Weighted Assets, Minimum Capital Adequacy Requirement, Ratio	4.50%	4.50%
Tier 1 Capital to Risk Weighted Assets:
Tier 1 Capital to Risk Weighted Assets, Actual Capital, Amount	$ 397,036	$ 353,684
Tier 1 Capital to Risk Weighted Assets, Actual Capital, Ratio	15.29%	15.28%
Tier 1 Capital to Risk Weighted Assets, Minimum Capital Adequacy Requirement, Amount	$ 155,786	$ 138,837
Tier 1 Capital to Risk Weighted Assets, Minimum Capital Adequacy Requirement, Ratio	6.00%	6.00%
Total Capital to Risk Weighted Assets:
Total Capital to Risk Weighted Assets, Actual Capital, Amount	$ 428,020	$ 382,670
Total Capital to Risk Weighted Assets, Actual Capital, Ratio	16.48%	16.54%
Total Capital to Risk Weighted Assets, Minimum Capital Adequacy Requirement, Amount	$ 207,715	$ 185,116
Total Capital to Risk Weighted Assets, Minimum Capital Adequacy Requirement, Ratio	8.00%	8.00%
Bank [Member]
Tier 1 Capital to Average Assets:
Tier 1 Capital to Average Assets, Actual Capital, Amount	$ 399,237	$ 353,568
Tier 1 Capital to Average Assets, Actual Capital, Ratio	9.45%	9.34%
Tier 1 Capital to Average Assets, Minimum Capital Adequacy Requirement, Amount	$ 168,916	$ 151,358
Tier 1 Capital to Average Assets, Minimum Capital Adequacy Requirement, Ratio	4.00%	4.00%
Tier 1 Capital to Average Assets, Minimum To Be Well Capitalized Under Prompt Corrective Action Provision, Amount	$ 211,145	$ 189,197
Tier 1 Capital to Average Assets, Minimum To Be Well Capitalized Under Prompt Corrective Action Provision, Ratio	5.00%	5.00%
Common Equity Tier 1 to Risk Weighted Assets
Common Equity Tier 1 Capital to Risk Weighted Assets, Actual Capital, Amount	$ 399,237	$ 353,568
Common Equity Tier 1 Capital to Risk Weighted Assets, Actual Capital, Ratio	15.38%	15.29%
Common Equity Tier 1 Capital to Risk Weighted Assets, Minimum Capital Adequacy Requirement, Amount	$ 116,820	$ 104,051
Common Equity Tier 1 Capital to Risk Weighted Assets, Minimum Capital Adequacy Requirement, Ratio	4.50%	4.50%
Common Equity Tier 1 Capital to Risk Weighted Assets, Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 168,741	$ 150,296
Common Equity Tier 1 Capital to Risk Weighted Assets, Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	6.50%	6.50%
Tier 1 Capital to Risk Weighted Assets:
Tier 1 Capital to Risk Weighted Assets, Actual Capital, Amount	$ 399,237	$ 353,568
Tier 1 Capital to Risk Weighted Assets, Actual Capital, Ratio	15.38%	15.29%
Tier 1 Capital to Risk Weighted Assets, Minimum Capital Adequacy Requirement, Amount	$ 155,761	$ 138,735
Tier 1 Capital to Risk Weighted Assets, Minimum Capital Adequacy Requirement, Ratio	6.00%	6.00%
Tier 1 Capital to Risk Weighted Assets, Minimum To Be Well Capitalized Under Prompt Corrective Action Provision, Amount	$ 207,681	$ 184,980
Tier 1 Capital to Risk Weighted Assets, Minimum To Be Well Capitalized Under Prompt Corrective Action Provision, Ratio	8.00%	8.00%
Total Capital to Risk Weighted Assets:
Total Capital to Risk Weighted Assets, Actual Capital, Amount	$ 430,221	$ 382,533
Total Capital to Risk Weighted Assets, Actual Capital, Ratio	16.57%	16.54%
Total Capital to Risk Weighted Assets, Minimum Capital Adequacy Requirement, Amount	$ 207,681	$ 184,980
Total Capital to Risk Weighted Assets, Minimum Capital Adequacy Requirement, Ratio	8.00%	8.00%
Total Capital to Risk Weighted Assets, Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 259,601	$ 231,225
Total Capital to Risk Weighted Assets, Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	10.00%	10.00%