Allowance For Loan Losses (Schedule Of Information Related To Average Recorded Investment And Interest Income Recognized On Impaired Loans) (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Financing Receivable, Impaired [Line Items]
With no related allowance recorded, Average recorded investment	$ 4,337	$ 13,573
With no related allowance recorded, Interest income recognized	85	226
With an allowance recorded, Average recorded investment	17,186	18,309
With an allowance recorded, Interest income recognized	345	157
Commercial And Industrial [Member]
Financing Receivable, Impaired [Line Items]
With an allowance recorded, Average recorded investment	184	129
With an allowance recorded, Interest income recognized	5
Commercial Real Estate [Member]
Financing Receivable, Impaired [Line Items]
With no related allowance recorded, Average recorded investment	4,337	12,047
With no related allowance recorded, Interest income recognized	85	206
With an allowance recorded, Average recorded investment	14,409	17,166
With an allowance recorded, Interest income recognized	298	157
Residential Real Estate [Member]
Financing Receivable, Impaired [Line Items]
With no related allowance recorded, Average recorded investment		479
With no related allowance recorded, Interest income recognized		15
With an allowance recorded, Average recorded investment	936	700
With an allowance recorded, Interest income recognized	22
Home equity - junior liens (including lines of credit) [Member]
Financing Receivable, Impaired [Line Items]
With no related allowance recorded, Average recorded investment		1,047
With no related allowance recorded, Interest income recognized		5
With an allowance recorded, Average recorded investment	1,657	314
With an allowance recorded, Interest income recognized	$ 20