Condensed Consolidated Statement of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended
Apr. 04, 2015	Mar. 29, 2014
Statement of Comprehensive Income [Abstract]
Net loss	$ (10,259)us-gaap_NetIncomeLoss	$ (11,015)us-gaap_NetIncomeLoss
Other comprehensive income (loss), net of tax
Foreign currency translation adjustments	118	41
Total comprehensive income	$ (10,141)us-gaap_ComprehensiveIncomeNetOfTax	$ (10,974)us-gaap_ComprehensiveIncomeNetOfTax

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration