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

3 Months Ended

Mar. 30, 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
	March 30, 2019		March 31, 2018
Total net revenues:
United States	$	16,874	$	6,738
China		14,361		8,042
South Korea		13,968		37,818
Taiwan		11,288		1,060
Japan		4,318		13,379
Singapore		1,551		12,155
Other		4,740		3,121
Total net revenues	$	67,100	$	82,313

Long-lived tangible assets

	March 30, 2019		December 29, 2018
Long-lived tangible assets:
United States	$	48,986	$	46,325
International		1,546		1,575
Total long-lived tangible assets	$	50,532	$	47,900