Loans And Allowance For Loan Losses (Summary Of Troubled Debt Restructures) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2012
Financing Receivable, Modifications [Line Items]
Number of Loans	2	3
Pre-Modification Outstanding Recorded Investment	$ 72	$ 130
Post-Modification Outstanding Recorded Investment	72	130
Commercial And Industrial [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans	2	2
Pre-Modification Outstanding Recorded Investment	72	72
Post-Modification Outstanding Recorded Investment	72	72
Commercial Loans [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans	2	2
Pre-Modification Outstanding Recorded Investment	72	72
Post-Modification Outstanding Recorded Investment	72	72
Residential Real Estate Mortgages [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans	0	1
Pre-Modification Outstanding Recorded Investment		58
Post-Modification Outstanding Recorded Investment		58
Consumer Loans [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans	0	1
Pre-Modification Outstanding Recorded Investment		58
Post-Modification Outstanding Recorded Investment		$ 58