Income Taxes (Summary Of A Reconciliation Of The Beginning And Ending Amount Of Gross Unrecognized Tax Benefits ("UTB")) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Income Taxes [Abstract]
Gross UTB balance at beginning of year	$ 1,599	$ 1,543
Additions based on tax positions related to the current year	92	101
Additions for tax positions of prior years	39	52
Reductions for tax positions of prior years	(75)	(69)
Reductions due to lapse of applicable statute of limitation	(155)	(28)
Gross UTB balance at end of year	1,500	1,599
Net UTB balance at end of year	$ 686	$ 840