Loans And The Allowance For Credit Losses (Nonaccrual Loans By Class) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual non-TDR loans	$ 2,355	$ 1,953
Total nonaccrual loans	2,729	2,177
Commercial, Financial And Agricultural [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccruing TDR's	8	0
Total nonaccrual loans	225	114
Real Estate Loans – Residential [Member] | First Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccruing TDR's	189	224
Total nonaccrual loans	1,119	1,146
Real Estate Loans – Residential [Member] | Second Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total nonaccrual loans	716	281
Real Estate Loans – Commercial [Member] | Owner Occupied [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccruing TDR's	177	0
Total nonaccrual loans	$ 295	$ 412