Loans And The Allowance For Credit Losses (Composition of Loan Portfolio) (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Financing Receivable, Recorded Investment [Line Items]
Total Loans	$ 1,257,932	$ 1,182,334
Commercial, Financial And Agricultural [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	207,067	177,597
Municipal Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	108,423	94,366
Real Estate Residential [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	448,632	469,529
Real Estate Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	450,673	412,447
Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	40,748	23,858
Installment Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	2,370	4,504
All Other Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	$ 19	$ 33