Loans And The Allowance For Credit Losses (Impaired Loans By Class) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Financing Receivable, Impaired [Line Items]
Recorded Investment	$ 1,600	$ 3,022
Unpaid Principal Balance	3,191	4,671
Related Allowance	189	569
Installment Loans [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	9	0
Unpaid Principal Balance	53	45
Related Allowance	3	0
Commercial, Financial And Agricultural [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	283	233
Unpaid Principal Balance	1,186	1,198
Related Allowance	0	149
Real Estate Loans – Residential [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	1,031	2,317
Unpaid Principal Balance	1,462	2,692
Related Allowance	129	361
Real Estate Loans – Commercial [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	277	472
Unpaid Principal Balance	490	736
Related Allowance	57	59
With No Related Allowance Recorded [Member] | Installment Loans [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	0	0
Unpaid Principal Balance	44	45
Related Allowance	0	0
With No Related Allowance Recorded [Member] | Commercial, Financial And Agricultural [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	283	7
Unpaid Principal Balance	1,186	970
Related Allowance	0	0
With No Related Allowance Recorded [Member] | Real Estate Loans – Residential [Member] | First Mortgage [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	372	853
Unpaid Principal Balance	759	1,174
Related Allowance	0	0
With No Related Allowance Recorded [Member] | Real Estate Loans – Residential [Member] | Second Mortgage [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	165	16
Unpaid Principal Balance	202	52
Related Allowance	0	0
With No Related Allowance Recorded [Member] | Real Estate Loans – Commercial [Member] | Owner Occupied [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	107	295
Unpaid Principal Balance	243	487
Related Allowance	0	0
With No Related Allowance Recorded [Member] | Real Estate Loans – Commercial [Member] | Non-Owner Occupied [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	0	0
Unpaid Principal Balance	70	70
Related Allowance	0	0
With Related Allowance Recorded [Member] | Installment Loans [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	9
Unpaid Principal Balance	9
Related Allowance	3
With Related Allowance Recorded [Member] | Commercial, Financial And Agricultural [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	0	226
Unpaid Principal Balance	0	228
Related Allowance	0	149
With Related Allowance Recorded [Member] | Real Estate Loans – Residential [Member] | First Mortgage [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	494	748
Unpaid Principal Balance	501	766
Related Allowance	129	173
With Related Allowance Recorded [Member] | Real Estate Loans – Residential [Member] | Second Mortgage [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	0	700
Unpaid Principal Balance	0	700
Related Allowance	0	188
With Related Allowance Recorded [Member] | Real Estate Loans – Commercial [Member] | Owner Occupied [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment	170	177
Unpaid Principal Balance	177	179
Related Allowance	$ 57	$ 59