Income Taxes (Schedule Of Uncertain Tax Position Liability And Liability For Interest And Penalties On Uncertain Tax Positions) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Taxes [Abstract]
Beginning balance	$ 2,004	$ 1,788	$ 1,822
Increases related to current year tax positions	281	231	78
Decreases related to prior year tax positions	(185)	(15)	(112)
Ending balance	2,100	2,004	1,788
Beginning Balance	489	418	391
Accrual of interest and penalties	66	79	65
Decreases related to prior year tax positions	(133)	(8)	(38)
Ending Balance	$ 422	$ 489	$ 418