Segment, Geographic, Product and Significant Customer Information (Tables)

6 Months Ended

Jun. 29, 2019

Segment Reporting [Abstract]

Total Net Revenue

The following tables summarize total net revenues and long-lived assets (excluding intangible assets) attributed to significant countries (in thousands)

	Three Months Ended				Six Months Ended
	June 29, 2019		June 30, 2018		June 29, 2019		June 30, 2018
Total net revenues:
United States	$	9,170	$	7,392	$	26,044	$	14,130
China		25,873		28,333		40,233		36,375
South Korea		13,070		30,980		27,038		68,798
Singapore		8,723		2,380		10,274		14,535
Japan		4,214		15,017		8,531		28,396
Taiwan		3,650		1,974		14,939		3,034
Other		2,920		2,528		7,661		5,649
Total net revenues	$	67,620	$	88,604	$	134,720	$	170,917

Long-lived Tangible Assets

	June 29, 2019		December 29, 2018
Long-lived tangible assets:
United States	$	51,365	$	46,325
International		1,414		1,575
Total long-lived tangible assets	$	52,779	$	47,900