Allowance For Loan Losses (Schedule Of Impaired Loans) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Financing Receivable, Impaired [Line Items]
With no related allowance recorded, Recorded investment	$ 13,204	$ 2,918
With no related allowance recorded, Unpaid principal balance	19,211	6,114
With an allowance recorded, Recorded investment	9,779	19,200
With an allowance recorded, Unpaid principal balance	9,779	19,200
With an allowance recorded, Related allowance	1,204	3,488
Commercial And Industrial [Member]
Financing Receivable, Impaired [Line Items]
With no related allowance recorded, Recorded investment	1,113	78
With no related allowance recorded, Unpaid principal balance	1,369	78
With an allowance recorded, Recorded investment	313	297
With an allowance recorded, Unpaid principal balance	313	297
With an allowance recorded, Related allowance	41	53
Commercial Real Estate [Member]
Financing Receivable, Impaired [Line Items]
With no related allowance recorded, Recorded investment	11,843	2,840
With no related allowance recorded, Unpaid principal balance	17,594	6,036
With an allowance recorded, Recorded investment	5,808	16,090
With an allowance recorded, Unpaid principal balance	5,808	16,090
With an allowance recorded, Related allowance	758	3,044
Residential Real Estate [Member]
Financing Receivable, Impaired [Line Items]
With no related allowance recorded, Recorded investment	219
With no related allowance recorded, Unpaid principal balance	219
With an allowance recorded, Recorded investment	2,564	1,000
With an allowance recorded, Unpaid principal balance	2,564	1,000
With an allowance recorded, Related allowance	314	139
Home equity - junior liens (including lines of credit) [Member]
Financing Receivable, Impaired [Line Items]
With no related allowance recorded, Recorded investment	29
With no related allowance recorded, Unpaid principal balance	29
With an allowance recorded, Recorded investment	1,079	1,801
With an allowance recorded, Unpaid principal balance	1,079	1,801
With an allowance recorded, Related allowance	86	240
Consumer [Member]
Financing Receivable, Impaired [Line Items]
With an allowance recorded, Recorded investment	11
With an allowance recorded, Unpaid principal balance	11
With an allowance recorded, Related allowance	1
DDA Overdrafts [Member]
Financing Receivable, Impaired [Line Items]
With an allowance recorded, Recorded investment	4	12
With an allowance recorded, Unpaid principal balance	4	12
With an allowance recorded, Related allowance	$ 4	$ 12