Allowance For Loan Losses (Recorded Investment Segregated By Amounts Individually Or Collectively In Allowance For Loan Losses) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011	Sep. 30, 2011
Financing Receivable, Allowance for Credit Losses [Line Items]
Total Financing Receivables	$ 674,993	$ 648,565	$ 632,594
Balance, end of period: Individually evaluated for impairment	13,148		10,867
Balance, end of period: Collectively evaluated for impairment	661,845		621,727
Commercial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total Financing Receivables	251,195	252,689	228,538
Balance, end of period: Individually evaluated for impairment	2,240		4,778
Balance, end of period: Collectively evaluated for impairment	248,955		223,760
Real Estate Construction One-To- Four Family [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total Financing Receivables	31,508	21,859	26,420
Balance, end of period: Individually evaluated for impairment	810
Balance, end of period: Collectively evaluated for impairment	30,698		26,420
Real Estate Construction Other [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total Financing Receivables	15,825	18,323	19,564
Balance, end of period: Individually evaluated for impairment	2,748		1,999
Balance, end of period: Collectively evaluated for impairment	13,077		17,565
Real Estate Term Owner Occupied [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total Financing Receivables	77,935	81,481	82,400
Balance, end of period: Individually evaluated for impairment	526
Balance, end of period: Collectively evaluated for impairment	77,409		82,400
Real Estate Term Non-Owner Occupied [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total Financing Receivables	227,910	195,454	196,613
Balance, end of period: Individually evaluated for impairment	2,311		3,379
Balance, end of period: Collectively evaluated for impairment	225,599		193,234
Real Estate Term Other [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total Financing Receivables	33,591	38,925	37,450
Balance, end of period: Individually evaluated for impairment	4,076		321
Balance, end of period: Collectively evaluated for impairment	29,515		37,129
Consumer Secured By 1st Deed Of Trust [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total Financing Receivables	17,841	20,212	21,010
Balance, end of period: Individually evaluated for impairment	268		98
Balance, end of period: Collectively evaluated for impairment	17,573		20,912
Consumer Other [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total Financing Receivables	19,188	19,622	20,599
Balance, end of period: Individually evaluated for impairment	169		292
Balance, end of period: Collectively evaluated for impairment	$ 19,019		$ 20,307