Regulatory Matters (Schedule Of Capital Amounts And Ratios) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Tier 1 Capital to Average Assets:
Tier 1 Capital to Average Assets, Actual Capital, Amount	$ 388,293	$ 397,036
Tier 1 Capital to Average Assets, Actual Capital, Ratio	9.42%	9.40%
Tier 1 Capital to Average Assets, Minimum Capital Adequacy Requirement, Amount	$ 164,964	$ 169,015
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	$ 388,293	$ 397,036
Common Equity Tier 1 Capital to Risk Weighted Assets, Actual Capital, Ratio	14.93%	15.29%
Common Equity Tier 1 Capital to Risk Weighted Assets, Minimum Capital Adequacy Requirement, Amount	$ 117,048	$ 116,840
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	$ 388,293	$ 397,036
Tier 1 Capital to Risk Weighted Assets, Actual Capital, Ratio	14.93%	15.29%
Tier 1 Capital to Risk Weighted Assets, Minimum Capital Adequacy Requirement, Amount	$ 156,064	$ 155,786
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	$ 417,757	$ 428,020
Total Capital to Risk Weighted Assets, Actual Capital, Ratio	16.06%	16.48%
Total Capital to Risk Weighted Assets, Minimum Capital Adequacy Requirement, Amount	$ 208,085	$ 207,715
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	$ 388,150	$ 399,237
Tier 1 Capital to Average Assets, Actual Capital, Ratio	9.42%	9.45%
Tier 1 Capital to Average Assets, Minimum Capital Adequacy Requirement, Amount	$ 164,885	$ 168,916
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	$ 206,106	$ 211,145
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	$ 388,150	$ 399,237
Common Equity Tier 1 Capital to Risk Weighted Assets, Actual Capital, Ratio	14.93%	15.38%
Common Equity Tier 1 Capital to Risk Weighted Assets, Minimum Capital Adequacy Requirement, Amount	$ 117,001	$ 116,820
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	$ 169,002	$ 168,741
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	$ 388,150	$ 399,237
Tier 1 Capital to Risk Weighted Assets, Actual Capital, Ratio	14.93%	15.38%
Tier 1 Capital to Risk Weighted Assets, Minimum Capital Adequacy Requirement, Amount	$ 156,002	$ 155,761
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	$ 208,003	$ 207,681
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	$ 417,614	$ 430,221
Total Capital to Risk Weighted Assets, Actual Capital, Ratio	16.06%	16.57%
Total Capital to Risk Weighted Assets, Minimum Capital Adequacy Requirement, Amount	$ 208,003	$ 207,681
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	$ 260,003	$ 259,601
Total Capital to Risk Weighted Assets, Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	10.00%	10.00%