Loans And The Allowance For Credit Losses (Summary Of Loans By Credit Quality Indicator) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011	Jun. 30, 2011
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	$ 1,025,665	$ 1,027,626	$ 943,350
Installment Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	5,842	5,806
All Other Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	356	399
Unrated Residential And Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	443,512	423,919
Unrated Residential And Consumer [Member] | Installment Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	5,842	5,806
Unrated Residential And Consumer [Member] | All Other Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	356	399
Pass [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	532,385	525,312
Pass [Member] | Installment Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	0	0
Pass [Member] | All Other Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	0	0
Pass-Watch [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	22,565	55,059
Pass-Watch [Member] | Installment Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	0	0
Pass-Watch [Member] | All Other Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	0	0
Special Mention [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	7,963	9,361
Special Mention [Member] | Installment Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	0	0
Special Mention [Member] | All Other Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	0	0
Substandard [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	19,240	13,975
Substandard [Member] | Installment Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	0	0
Substandard [Member] | All Other Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	0	0
Commercial, Financial And Agricultural [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	173,114	146,990	165,665
Commercial, Financial And Agricultural [Member] | Unrated Residential And Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	0	2
Commercial, Financial And Agricultural [Member] | Pass [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	161,577	117,772
Commercial, Financial And Agricultural [Member] | Pass-Watch [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	8,623	28,326
Commercial, Financial And Agricultural [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	187	170
Commercial, Financial And Agricultural [Member] | Substandard [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	2,727	720
Municipal Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	42,578	101,705	37,933
Municipal Loans [Member] | Unrated Residential And Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	0	0
Municipal Loans [Member] | Pass [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	42,578	101,705
Municipal Loans [Member] | Pass-Watch [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	0	0
Municipal Loans [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	0	0
Municipal Loans [Member] | Substandard [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	0	0
Real Estate Loans – Residential [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	464,202		418,246
Real Estate Loans – Residential [Member] | First Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	425,540	401,331
Real Estate Loans – Residential [Member] | Second Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	38,662	38,487
Real Estate Loans – Residential [Member] | Unrated Residential And Consumer [Member] | First Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	400,406	379,512
Real Estate Loans – Residential [Member] | Unrated Residential And Consumer [Member] | Second Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	36,697	38,020
Real Estate Loans – Residential [Member] | Pass [Member] | First Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	22,150	18,647
Real Estate Loans – Residential [Member] | Pass [Member] | Second Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	1,167	146
Real Estate Loans – Residential [Member] | Pass-Watch [Member] | First Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	1,257	1,569
Real Estate Loans – Residential [Member] | Pass-Watch [Member] | Second Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	0	0
Real Estate Loans – Residential [Member] | Special Mention [Member] | First Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	628	641
Real Estate Loans – Residential [Member] | Special Mention [Member] | Second Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	0	0
Real Estate Loans – Residential [Member] | Substandard [Member] | First Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	1,099	962
Real Estate Loans – Residential [Member] | Substandard [Member] | Second Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	798	321
Real Estate Loans – Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	329,698		304,347
Real Estate Loans – Commercial [Member] | Owner Occupied [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	220,003	206,256
Real Estate Loans – Commercial [Member] | Non-Owner Occupied [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	109,695	107,659
Real Estate Loans – Commercial [Member] | Unrated Residential And Consumer [Member] | Owner Occupied [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	0	0
Real Estate Loans – Commercial [Member] | Unrated Residential And Consumer [Member] | Non-Owner Occupied [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	0	0
Real Estate Loans – Commercial [Member] | Pass [Member] | Owner Occupied [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	194,521	175,878
Real Estate Loans – Commercial [Member] | Pass [Member] | Non-Owner Occupied [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	101,257	95,239
Real Estate Loans – Commercial [Member] | Pass-Watch [Member] | Owner Occupied [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	6,747	14,001
Real Estate Loans – Commercial [Member] | Pass-Watch [Member] | Non-Owner Occupied [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	5,409	8,891
Real Estate Loans – Commercial [Member] | Special Mention [Member] | Owner Occupied [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	5,643	7,355
Real Estate Loans – Commercial [Member] | Special Mention [Member] | Non-Owner Occupied [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	1,505	1,195
Real Estate Loans – Commercial [Member] | Substandard [Member] | Owner Occupied [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	13,092	9,022
Real Estate Loans – Commercial [Member] | Substandard [Member] | Non-Owner Occupied [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	1,524	2,334
Real Estate Loans – Construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	9,875		10,303
Real Estate Loans – Construction [Member] | Residential [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	1,749	1,798
Real Estate Loans – Construction [Member] | Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	8,126	17,195
Real Estate Loans – Construction [Member] | Unrated Residential And Consumer [Member] | Residential [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	139	99
Real Estate Loans – Construction [Member] | Unrated Residential And Consumer [Member] | Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	72	81
Real Estate Loans – Construction [Member] | Pass [Member] | Residential [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	1,610	0
Real Estate Loans – Construction [Member] | Pass [Member] | Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	7,525	15,925
Real Estate Loans – Construction [Member] | Pass-Watch [Member] | Residential [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	0	1,699
Real Estate Loans – Construction [Member] | Pass-Watch [Member] | Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	529	573
Real Estate Loans – Construction [Member] | Special Mention [Member] | Residential [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	0	0
Real Estate Loans – Construction [Member] | Special Mention [Member] | Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	0	0
Real Estate Loans – Construction [Member] | Substandard [Member] | Residential [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	0	0
Real Estate Loans – Construction [Member] | Substandard [Member] | Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans	$ 0	$ 616