Loans And Allowance For Loan Losses (Interest Income Recognized on Impaired Loans) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Loans And Allowance For Loan Losses [Line Items]
Interest income recognized on impaired loans	$ 2,372	$ 3,243	$ 4,254
Business [Member]
Loans And Allowance For Loan Losses [Line Items]
Interest income recognized on impaired loans	344	509	1,184
Real Estate - Construction And Land [Member]
Loans And Allowance For Loan Losses [Line Items]
Interest income recognized on impaired loans	361	758	655
Real Estate - Business [Member]
Loans And Allowance For Loan Losses [Line Items]
Interest income recognized on impaired loans	153	215	246
Real Estate - Personal [Member]
Loans And Allowance For Loan Losses [Line Items]
Interest income recognized on impaired loans	208	263	376
Consumer [Member]
Loans And Allowance For Loan Losses [Line Items]
Interest income recognized on impaired loans	286	346	415
Revolving Home Equity [Member]
Loans And Allowance For Loan Losses [Line Items]
Interest income recognized on impaired loans	27	36	37
Consumer Credit Card [Member]
Loans And Allowance For Loan Losses [Line Items]
Interest income recognized on impaired loans	$ 993	$ 1,116	$ 1,341