Other expense, net (Table) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 30, 2013	Mar. 31, 2012
Other Income And Expenses [Abstract]
Severance Costs	$ 287	$ 320
Business Combination, Acquisition Related Costs	127	201
Other Cost and Expense, Operating	(49)	(157)
Total Other Expense, net	$ 365	$ 364