Fair Value Of Assets And Liabilities (Schedule Of Asset Impairment Or Valuation Adjustment Recognized At Fair Value On A Nonrecurring Basis) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012		Dec. 31, 2011		Jun. 30, 2011
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Nonrecurring Assets	$ 4,647		$ 4,268		$ 2,532
Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Nonrecurring Assets	2,920		204		1,636
Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Nonrecurring Assets	1,727		4,064		896
Total (gains) losses
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Nonrecurring Assets	(178)		889		313
Loans Measured For Impairment [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Nonrecurring Assets	4,008	[1]	2,836	[1]	2,532	[1]
Loans Measured For Impairment [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Nonrecurring Assets	2,920	[1]	204	[1]	1,636	[1]
Loans Measured For Impairment [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Nonrecurring Assets	1,088	[1]	2,632	[1]	896	[1]
Loans Measured For Impairment [Member] | Total (gains) losses
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Nonrecurring Assets	(259)	[1]	797	[1]	313	[1]
Other Real Estate Owned [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Nonrecurring Assets	639	[2]	1,432	[2]
Other Real Estate Owned [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Nonrecurring Assets	639	[2]	1,432	[2]
Other Real Estate Owned [Member] | Total (gains) losses
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Nonrecurring Assets	$ 81	[2]	$ 92	[2]

[1] Relates to certain impaired collateral dependent loans. The impairment was measured based on the fair value of collateral, in accordance with U.S. GAAP.

[2] Relates to certain impaired other real estate owned. This impairment arose from an adjustment to the Company’s estimate of the fair market value of these properties based on changes in estimated costs to complete the projects and changes in market conditions.