Loans And The Allowance For Credit Losses (Allowance For Loan Losses And The Recorded Investment In Loans) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Financing Receivable, Allowance for Credit Losses [Line Items]
Ending balance individually evaluated for impairment	$ 112	$ 569
Ending balance collectively evaluated for impairment	12,716	11,743
Financing receivables, Ending balance individually evaluated for impairment	906	3,022
Financing receivables, Ending balance collectively evaluated for impairment	1,165,327	1,079,901
Total	1,166,233	1,082,923
Allowance for loan losses	12,042	11,562
Reserve for undisbursed lines of credit	786	750
Total allowance for credit losses	12,828	12,312	11,353	10,754
Commercial, Financial And Agricultural [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Ending balance individually evaluated for impairment	2	149
Ending balance collectively evaluated for impairment	3,352	3,298
Financing receivables, Ending balance individually evaluated for impairment	20	233
Financing receivables, Ending balance collectively evaluated for impairment	172,790	164,790
Total	172,810	165,023
Allowance for loan losses	2,740	2,915
Reserve for undisbursed lines of credit	614	532
Total allowance for credit losses	3,354	3,447	2,905	2,617
Municipal Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Ending balance individually evaluated for impairment	0	0
Ending balance collectively evaluated for impairment	768	522
Financing receivables, Ending balance individually evaluated for impairment	0	0
Financing receivables, Ending balance collectively evaluated for impairment	94,007	84,689
Total	94,007	84,689
Allowance for loan losses	758	494
Reserve for undisbursed lines of credit	10	28
Total allowance for credit losses	768	522	309	236
Real Estate Loans – Residential [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Ending balance individually evaluated for impairment	41	361
Ending balance collectively evaluated for impairment	3,040	3,060
Financing receivables, Ending balance individually evaluated for impairment	722	2,317
Financing receivables, Ending balance collectively evaluated for impairment	488,984	458,078
Total	489,706	460,395
Allowance for loan losses	2,995	3,333
Reserve for undisbursed lines of credit	86	88
Total allowance for credit losses	3,081	3,421	3,017	2,305
Real Estate Loans – Commercial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Ending balance individually evaluated for impairment	69	59
Ending balance collectively evaluated for impairment	5,016	4,601
Financing receivables, Ending balance individually evaluated for impairment	164	472
Financing receivables, Ending balance collectively evaluated for impairment	371,155	356,706
Total	371,319	357,178
Allowance for loan losses	5,040	4,605
Reserve for undisbursed lines of credit	45	55
Total allowance for credit losses	5,085	4,660	4,605	5,266
Real Estate Loans – Construction [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Ending balance individually evaluated for impairment	0	0
Ending balance collectively evaluated for impairment	512	234
Financing receivables, Ending balance individually evaluated for impairment	0	0
Financing receivables, Ending balance collectively evaluated for impairment	31,841	10,561
Total	31,841	10,561
Allowance for loan losses	481	187
Reserve for undisbursed lines of credit	31	47
Total allowance for credit losses	512	234	477	283
Installment Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Ending balance individually evaluated for impairment	0	0
Ending balance collectively evaluated for impairment	18	17
Financing receivables, Ending balance individually evaluated for impairment	0	0
Financing receivables, Ending balance collectively evaluated for impairment	5,655	4,701
Total	5,655	4,701
Allowance for loan losses	18	17
Reserve for undisbursed lines of credit	0	0
Total allowance for credit losses	18	17	23	24
All Other Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Ending balance individually evaluated for impairment	0	0
Ending balance collectively evaluated for impairment	10	11
Financing receivables, Ending balance individually evaluated for impairment	0	0
Financing receivables, Ending balance collectively evaluated for impairment	895	376
Total	895	376
Allowance for loan losses	10	11
Reserve for undisbursed lines of credit	0	0
Total allowance for credit losses	$ 10	$ 11	$ 17	$ 23