Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jul. 02, 2019	Jul. 03, 2018	Jul. 02, 2019	Jul. 03, 2018
Statement of Comprehensive Income [Abstract]
Net loss	$ 438	$ (5,935)	$ (1,413)	$ (9,510)

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

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