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

3 Months Ended

Mar. 26, 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
	March 26, 2016		March 28, 2015
Total net revenues (1):
United States	$	7,191	$	9,078
South Korea		8,436		14,643
China		6,506		4,001
Taiwan		5,477		14,428
Singapore		9,902		2,794
Other		9,977		5,432
Total net revenues	$	47,489	$	50,376

Long-lived tangible assets

	March 26, 2016		December 26, 2015
Long-lived tangible assets:
United States	$	41,281	$	42,581
Japan		63		59
South Korea		664		697
All Other		1,060		1,156
Total long-lived tangible assets	$	43,068	$	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
	March 26, 2016			December 26, 2015
Micron		30.7	%	***
SK Hynix		12.7	%	***
Taiwan Semiconductor Manufacturing Company Limited		12.6	%		25.6	%
Intel		11.1	%	***
Toshiba Corporation		11.1	%		27.1	%
Samsung Electronics Co. Ltd.	***			***

*** 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
	March 26, 2016			March 28, 2015
Micron		25.9	%	***
SK Hynix		16.7	%		13.4	%
Intel Corporation		15.7	%	***
Toshiba Corporation		11.9	%	***
Taiwan Semiconductor Manufacturing Company Limited		10.1	%		22.3	%
Samsung Electronics Co. Ltd.	***				30.3	%

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