Fair Value Of Financial Instruments (Qualitative Information About Level 3 Fair Value Measurements) (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Dec. 31, 2011
Impaired Loans [Member]
Financial Assets	$ 23,243	$ 11,571
Impaired Loans [Member] | Significant Unobservable Inputs (Level III) [Member]
Financial Assets	23,243	11,571
Valuation Techniques	Appraisal of collateral
Impaired Loans [Member] | Appraisal Of Collateral [Member] | Significant Unobservable Inputs (Level III) [Member]
Unobservable Input	Appraisal adjustments
Foreclosed Real Estate [Member]
Financial Assets	329	4,959
Foreclosed Real Estate [Member] | Significant Unobservable Inputs (Level III) [Member]
Financial Assets	$ 329	$ 4,959
Valuation Techniques	Appraisal of collateral
Foreclosed Real Estate [Member] | Appraisal Of Collateral [Member] | Significant Unobservable Inputs (Level III) [Member]
Unobservable Input	Selling expenses
Appraisal Adjustments [Member] | Impaired Loans [Member] | Maximum [Member] | Significant Unobservable Inputs (Level III) [Member]
Range (Weighted Average)	63.80%
Appraisal Adjustments [Member] | Impaired Loans [Member] | Minimum [Member] | Significant Unobservable Inputs (Level III) [Member]
Range (Weighted Average)	0.00%
Appraisal Adjustments [Member] | Impaired Loans [Member] | Weighted Average [Member] | Significant Unobservable Inputs (Level III) [Member]
Range (Weighted Average)	4.10%
Selling Expenses [Member] | Impaired Loans [Member] | Weighted Average [Member] | Significant Unobservable Inputs (Level III) [Member]
Range (Weighted Average)	7.00%