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Operating Leases (Details Textual) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 27, 2014	Dec. 28, 2013	Dec. 29, 2012
Operating Leased Assets [Line Items]
Operating Leases, Rent Expense, Net, Total	$ 0.70us-gaap_OperatingLeasesRentExpenseNet	$ 0.07us-gaap_OperatingLeasesRentExpenseNet	$ 1.00us-gaap_OperatingLeasesRentExpenseNet

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- Definition

Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41499-112717

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