Loans And The Allowance For Credit Losses (Average Recorded Investment And Interest Income Recognized) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Financing Receivable, Recorded Investment, Past Due [Line Items]
Average Recorded Investment	$ 2,900	$ 3,701	$ 2,590	$ 3,657
Interest Income Recognized	36	3	87	10
Commercial, Financial And Agricultural [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Average Recorded Investment	37	276	72	476
Interest Income Recognized	0	0	1	0
Real Estate Loans – Residential [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Average Recorded Investment	2,280	2,689	1,999	2,403
Interest Income Recognized	34	3	81	10
Real Estate Loans – Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Average Recorded Investment	581	630	518	633
Interest Income Recognized	2	0	5	0
Real Estate Loans – Construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Average Recorded Investment		105		142
Interest Income Recognized		0		0
Installment and Other [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Average Recorded Investment	2	1	1	3
Interest Income Recognized	0	0	0	0
With No Related Allowance Recorded [Member] | Installment Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Average Recorded Investment	2	1	1	3
Interest Income Recognized	0	0	0	0
With No Related Allowance Recorded [Member] | Commercial, Financial And Agricultural [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Average Recorded Investment	24	138	49	170
Interest Income Recognized	0	0	1	0
With No Related Allowance Recorded [Member] | Real Estate Loans – Residential [Member] | First Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Average Recorded Investment	888	1,412	818	1,257
Interest Income Recognized	27	3	47	9
With No Related Allowance Recorded [Member] | Real Estate Loans – Residential [Member] | Second Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Average Recorded Investment	331	221	325	369
Interest Income Recognized	7	0	34	1
With No Related Allowance Recorded [Member] | Real Estate Loans – Commercial [Member] | Owner Occupied [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Average Recorded Investment	350	510	405	486
Interest Income Recognized	2	0	5	0
With No Related Allowance Recorded [Member] | Real Estate Loans – Commercial [Member] | Non-Owner Occupied [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Average Recorded Investment	0	120	0	86
Interest Income Recognized	0	0	0	0
With No Related Allowance Recorded [Member] | Real Estate Loans – Construction [Member] | Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Average Recorded Investment		105		142
Interest Income Recognized		0		0
With Related Allowance Recorded [Member] | Commercial, Financial And Agricultural [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Average Recorded Investment	13	138	23	306
Interest Income Recognized	0	0	0	0
With Related Allowance Recorded [Member] | Real Estate Loans – Residential [Member] | First Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Average Recorded Investment	580	997	662	751
Interest Income Recognized	0	0	0	0
With Related Allowance Recorded [Member] | Real Estate Loans – Residential [Member] | Second Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Average Recorded Investment	481	59	194	26
Interest Income Recognized	0	0	0	0
With Related Allowance Recorded [Member] | Real Estate Loans – Commercial [Member] | Owner Occupied [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Average Recorded Investment	231		113
Interest Income Recognized	0		0
With Related Allowance Recorded [Member] | Real Estate Loans – Commercial [Member] | Non-Owner Occupied [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Average Recorded Investment		0		61
Interest Income Recognized		$ 0		$ 0