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

6 Months Ended

Jun. 25, 2016

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 25, 2016		June 27, 2015		June 25, 2016		June 27, 2015
Total net revenues (1):
United States	$	8,904	$	15,052	$	16,095	$	24,130
South Korea		4,468		7,370		12,904		22,013
China		13,009		10,090		19,515		12,887
Taiwan		5,151		9,414		10,629		23,842
Singapore		16,617		1,625		26,519		5,626
Other		7,618		5,078		17,594		10,507
Total net revenues	$	55,767	$	48,629	$	103,256	$	99,005

Long-lived tangible assets

	June 25, 2016		December 26, 2015
Long-lived tangible assets:
United States	$	41,809	$	42,581
Japan		60		59
South Korea		623		697
All Other		992		1,156
Total long-lived tangible assets	$	43,484	$	44,493

Customers accounted for 10% or more of total accounts receivable

The following customers accounted for 10% or more of total accounts receivable, net:

	At
	June 25, 2016			December 26, 2015
Micron		29.6	%	***
Taiwan Semiconductor Manufacturing Company Limited	***				25.6	%
Intel		16.9	%	***
Toshiba Corporation		10.3	%		27.1	%

*** The customer accounted for less than 10% of total accounts receivable, net, as of that period end.

Customers accounted for 10% or more of total revenue

The following customers accounted for 10% or more of total net revenues:

	Three Months Ended						Six Months Ended
	June 25, 2016			June 27, 2015			June 25, 2016			June 27, 2015
Micron		35.9	%		32.0	%		31.3	%		19.0	%
Intel Corporation		23.6	%	***				19.9	%	***
SK Hynix	***				10.0	%	***				12.0	%
Toshiba Corporation	***			***				10.5	%	***
Taiwan Semiconductor Manufacturing Company Limited	***				17.0	%	***				20.0	%
Samsung Electronics Co. Ltd.	***			***			***				20.0	%

*** The customer accounted for less than 10% of total net revenues during the period.