Allowance For Loan Losses (Recorded Investment Segregated By Amounts Individually Or Collectively In Allowance For Loan Losses) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011	Jun. 30, 2011
Financing Receivable, Allowance for Credit Losses [Line Items]
Net loans	$ 660,107	$ 648,565	$ 636,955
Balance, end of period: Individually evaluated for impairment	14,196		12,689
Balance, end of period: Collectively evaluated for impairment	645,911		624,266
Commercial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Net loans	240,395	252,689	232,765
Balance, end of period: Individually evaluated for impairment	2,733		4,843
Balance, end of period: Collectively evaluated for impairment	237,662		227,922
Real Estate Construction [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Net loans	40,922	40,182	47,639
Balance, end of period: Individually evaluated for impairment	3,670		2,949
Balance, end of period: Collectively evaluated for impairment	37,252		44,690
Real Estate Term [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Net loans	340,530	315,860	314,093
Balance, end of period: Individually evaluated for impairment	7,359		4,688
Balance, end of period: Collectively evaluated for impairment	333,171		309,405
Home Equity Lines And Other Consumer [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Net loans	38,260	39,834	42,458
Balance, end of period: Individually evaluated for impairment	434		209
Balance, end of period: Collectively evaluated for impairment	$ 37,826		$ 42,249