Debt (Full-Recourse Factoring Agreements) (Details)	Jun. 26, 2011 USD ($)	Jun. 26, 2011 EUR (€)	Dec. 26, 2010 USD ($)	Dec. 31, 2009
Debt
Weighted average percentage of the face amount of receivables				92.40%
Full-recourse factoring arrangements	$ 1,636,000	€ 1,200,000	$ 1,740,000
Current portion of full-recourse factoring agreements	400,000	300,000
Long-term portion of full-recourse factoring agreements	$ 1,200,000	€ 900,000