Loans And The Allowance For Credit Losses (Recorded Investment Of Loans, Including Nonaccrual And Restructured Loans, By Class) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	$ 92	$ 76
60-89 Days Past Due		298
90 Days or More Past Due	435	542
Total Past Due	527	916
Current	1,125,984	1,165,317
Financing receivables, Totals	1,126,511	1,166,233
Greater Than 90 Days and Accruing	79	75
Installment Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	4,238	5,655
Financing receivables, Totals	4,238	5,655
All Other Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	252	895
Financing receivables, Totals	252	895
Commercial, Financial And Agricultural [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	39
90 Days or More Past Due		20
Total Past Due	39	20
Current	193,767	172,790
Financing receivables, Totals	193,806	172,810
Municipal Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	46,358	94,007
Financing receivables, Totals	46,358	94,007
Real Estate Loans – Residential [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivables, Totals	476,696	489,706
Real Estate Loans – Residential [Member] | First Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	45	4
60-89 Days Past Due		294
90 Days or More Past Due	278	341
Total Past Due	323	639
Current	439,106	452,440
Financing receivables, Totals	439,429	453,079
Real Estate Loans – Residential [Member] | Second Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	8
60-89 Days Past Due		4
90 Days or More Past Due	157	181
Total Past Due	165	185
Current	37,102	36,442
Financing receivables, Totals	37,267	36,627
Greater Than 90 Days and Accruing	79	75
Real Estate Loans – Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivables, Totals	372,825	371,319
Real Estate Loans – Commercial [Member] | Owner Occupied [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	224,728	224,416
Financing receivables, Totals	224,728	224,416
Real Estate Loans – Commercial [Member] | Non-Owner Occupied [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due		72
Total Past Due		72
Current	148,097	146,831
Financing receivables, Totals	148,097	146,903
Real Estate Loans – Construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivables, Totals	32,336	31,841
Real Estate Loans – Construction [Member] | Residential [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	4,129	2,495
Financing receivables, Totals	4,129	2,495
Real Estate Loans – Construction [Member] | Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	28,207	29,346
Financing receivables, Totals	$ 28,207	$ 29,346