Allowance For Loan Losses (Schedule Of Troubled Debt Restructurings) (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2016 USD ($) contract	Sep. 30, 2015 USD ($) contract	Dec. 31, 2015 USD ($)
Financing Receivable, Modifications [Line Items]
Accruing	$ 25,867		$ 22,259
Non-Accruing	537		225
Total	$ 26,404		22,484
Number of Contracts | contract	38	49
Pre-Modification Outstanding Recorded Investment	$ 5,321	$ 2,799
Post Modification Outstanding Recorded Investment	5,321	$ 2,799
Commercial And Industrial [Member]
Financing Receivable, Modifications [Line Items]
Accruing	46		58
Non-Accruing	0		0
Total	$ 46		58
Number of Contracts | contract	0	0
Pre-Modification Outstanding Recorded Investment	$ 0	$ 0
Post Modification Outstanding Recorded Investment	0	$ 0
Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Accruing	2,718		1,746
Non-Accruing	0		0
Total	$ 2,718		1,746
Number of Contracts | contract	1	0
Pre-Modification Outstanding Recorded Investment	$ 2,207	$ 0
Post Modification Outstanding Recorded Investment	2,207	$ 0
Residential Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Accruing	19,944		17,796
Non-Accruing	452		191
Total	$ 20,396		17,987
Number of Contracts | contract	30	35
Pre-Modification Outstanding Recorded Investment	$ 2,924	$ 2,431
Post Modification Outstanding Recorded Investment	2,924	$ 2,431
Home Equity [Member]
Financing Receivable, Modifications [Line Items]
Accruing	3,159		2,659
Non-Accruing	85		34
Total	$ 3,244		2,693
Number of Contracts | contract	7	14
Pre-Modification Outstanding Recorded Investment	$ 190	$ 368
Post Modification Outstanding Recorded Investment	190	$ 368
Consumer Loan [Member]
Financing Receivable, Modifications [Line Items]
Accruing	0		0
Non-Accruing	0		0
Total	$ 0		$ 0
Number of Contracts | contract	0	0
Pre-Modification Outstanding Recorded Investment	$ 0	$ 0
Post Modification Outstanding Recorded Investment	$ 0	$ 0