CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended
	Mar. 30, 2019	Mar. 31, 2018
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
Net income (loss)	$ 2,167	$ (3,261)
Net income (loss)	2,167	(3,261)
Other comprehensive loss
Foreign currency translation adjustments	(13)	(5)
Total comprehensive income (loss)	$ 2,154	$ (3,266)