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	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Financing Receivable, Impaired [Line Items]
With no related allowance recorded, Average recorded investment	$ 7,553	$ 13,368
With no related allowance recorded, Interest income recognized	236	226
With an allowance recorded, Average recorded investment	14,008	15,962
With an allowance recorded, Interest income recognized	451	157
Commercial And Industrial [Member]
Financing Receivable, Impaired [Line Items]
With no related allowance recorded, Average recorded investment	81
With no related allowance recorded, Interest income recognized	4
With an allowance recorded, Average recorded investment	203	248
With an allowance recorded, Interest income recognized	7
Commercial Real Estate [Member]
Financing Receivable, Impaired [Line Items]
With no related allowance recorded, Average recorded investment	7,472	12,350
With no related allowance recorded, Interest income recognized	232	206
With an allowance recorded, Average recorded investment	11,197	14,192
With an allowance recorded, Interest income recognized	378	157
Residential Real Estate [Member]
Financing Receivable, Impaired [Line Items]
With no related allowance recorded, Average recorded investment		320
With no related allowance recorded, Interest income recognized		15
With an allowance recorded, Average recorded investment	1,254	996
With an allowance recorded, Interest income recognized	36
Home equity - junior liens (including lines of credit) [Member]
Financing Receivable, Impaired [Line Items]
With no related allowance recorded, Average recorded investment		698
With no related allowance recorded, Interest income recognized		5
With an allowance recorded, Average recorded investment	1,354	526
With an allowance recorded, Interest income recognized	$ 30