Commitments and Contingencies (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011
Unrecorded Unconditional Purchase Obligation [Line Items]
Purchase Commitment, Remaining Minimum Amount Committed	$ 11,619
Letters of Credit Outstanding, Amount	3
Unrecorded Unconditional Purchase Obligation, Purchases	1,109	1,127	1,438
Unrecorded Unconditional Purchase Obligation, Due in Next Twelve Months	838
Unrecorded Unconditional Purchase Obligation, Due within Two Years	$ 304