Loans And Allowance For Loan Losses (Recorded Investment And The Number Of Loans Modified As Troubled Debt Restructuring Which Subsequently Defaulted) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013 contract
Financing Receivable, Modifications [Line Items]
Number of Contracts	1
Recorded Investment	$ 563
Commercial [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	1
Recorded Investment	$ 563