Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Oct. 01, 2019	Oct. 02, 2018	Oct. 01, 2019	Oct. 02, 2018
Statement of Comprehensive Income [Abstract]
Net loss	$ 4,243	$ 1,050	$ 2,830	$ (8,460)

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

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