Loans And The Allowance For Credit Losses (Nonaccrual Loans By Class) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccruing non-TDR loans	$ 1,118	$ 598
Total nonaccrual loans including TDRs	1,176	661
Commercial, Financial And Agricultural [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccruing non-TDR loans	551	88
Nonaccruing TDR's	4	5
Real Estate Loans – Residential [Member] | First Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccruing non-TDR loans	471	431
Nonaccruing TDR's	54	58
Real Estate Loans – Residential [Member] | Second Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccruing non-TDR loans	$ 96	$ 79