Condensed Consolidated Statements of Comprehensive Loss (Unaudited) - USD ($) $ in Thousands	3 Months Ended
Mar. 28, 2020	Mar. 30, 2019
Statement Of Income And Comprehensive Income [Abstract]
Net loss	$ (1,651)	$ (3,048)
Foreign currency translation adjustments	2	8
Comprehensive loss	$ (1,649)	$ (3,040)

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

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