Loans And Allowance For Loan Losses (Interest Income Recognized on Impaired Loans) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Loans And Allowance For Loan Losses [Line Items]
Interest income recognized	$ 1,075	$ 749
Business [Member]
Loans And Allowance For Loan Losses [Line Items]
Interest income recognized	397	105
Real Estate - Construction And Land [Member]
Loans And Allowance For Loan Losses [Line Items]
Interest income recognized	202	250
Real Estate - Business [Member]
Loans And Allowance For Loan Losses [Line Items]
Interest income recognized	61	54
Real Estate - Personal [Member]
Loans And Allowance For Loan Losses [Line Items]
Interest income recognized	73	14
Consumer [Member]
Loans And Allowance For Loan Losses [Line Items]
Interest income recognized	93	0
Revolving Home Equity [Member]
Loans And Allowance For Loan Losses [Line Items]
Interest income recognized	9	0
Consumer Credit Card [Member]
Loans And Allowance For Loan Losses [Line Items]
Interest income recognized	$ 240	$ 326