Discontinued Operations (Selected Financial Information Included In Earnings) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 25, 2012		Mar. 27, 2011
Discontinued Operations [Abstract]
Net revenue	$ 3,700		$ 2,787
Gross profit	567		289
Selling, general, and administrative expense	887		1,016
Operating loss	(320)		(727)
Loss from discontinued operations before income taxes	(320)		(727)
Loss from discontinued operations, net of tax	$ (320)	[1]	$ (473)

[1] As this business is located in the U.S. and a full valuation allowance is recorded in the U.S., there is no tax impact on the loss from discontinued operations.