Loans And The Allowance For Credit Losses (Nonaccrual Loans By Class) (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccruing non-TDR loans	$ 713	$ 598
Total nonaccrual loans including TDRs	764	661
Commercial, Financial And Agricultural [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccruing non-TDR loans	6	88
Nonaccruing TDR's	2	5
Real Estate Residential [Member] | First Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccruing non-TDR loans	707	431
Nonaccruing TDR's	49	58
Real Estate Residential [Member] | Second Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccruing non-TDR loans		79
Real Estate Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccruing non-TDR loans	$ 713	$ 598