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Credit Facility (Details Textuals) (USD $)	3 Months Ended	6 Months Ended
Credit Facility (Details Textuals) (USD $)	Jun. 28, 2011	Jun. 26, 2012	Jun. 28, 2011	Dec. 27, 2011
Debt Disclosure [Abstract]
Line of Credit Facility, Maximum Borrowing Capacity		$ 250,000,000
Commitment fees incurred	100,000	200,000	300,000
Accrued interest to the commitment fees				$ 100,000

Carrying value as of the balance sheet date of [accrued] interest payable on all forms of debt, including trade payables, that has been incurred and is unpaid. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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