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

9 Months Ended

Sep. 29, 2018

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				Nine Months Ended
	September 29, 2018		September 30, 2017		September 29, 2018		September 30, 2017
Total net revenues:
South Korea	$	23,598	$	22,269	$	92,397	$	72,388
Japan		19,693		4,781		48,090		17,400
United States		8,414		6,231		22,545		28,101
China		14,486		3,403		50,861		17,420
Taiwan		1,883		2,304		4,918		19,016
Singapore		5,842		9,774		20,377		12,229
Other		2,674		7,913		8,319		13,862
Total net revenues	$	76,590	$	56,675	$	247,507	$	180,416

Long-lived tangible assets

	September 29, 2018		December 30, 2017
Long-lived tangible assets:
United States	$	42,013	$	43,427
International		1,122		1,383
Total long-lived tangible assets	$	43,135	$	44,810