Geographic and Significant Customer Information

6 Months Ended

Jun. 30, 2012

Geographic and Significant Customer Information [Abstract]

Geographic and Significant Customer Information

Note 16. Geographic and Significant Customer Information

The Company has one operating segment, which is the sale, design, manufacture, marketing and support of thin film, optical critical dimension and overlay dimension metrology systems. The following table summarizes total net revenues (based on the deployments and service location of the systems) and long-lived assets (excluding intangible assets) attributed to significant geographic regions (in thousands):

	Three Months Ended				Six Months Ended
	June 30, 2012		July 2, 2011		June 30, 2012		July 2, 2011
Total net revenues:
United States	$	13,872	$	8,673	$	25,449	$	23,238
China		1,702		7,566		2,637		9,409
Israel		159		7,438		6,475		15,186
Japan		2,511		8,371		6,850		16,261
South Korea		29,638		22,474		57,109		47,617
Other		5,299		9,850		10,153		14,804
Total net revenues	$	53,181	$	64,372	$	108,673	$	126,515

	June 30, 2012		December 31, 2011
Long-lived tangible assets:
United States	$	40,128	$	33,127
China		30		36
Israel		124		115
Japan		187		159
South Korea		556		503
All Other		1,178		1,581
Total long-lived tangible assets	$	42,203	$	35,521

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

	At
	June 30, 2012			December 31, 2011
SK Hynix		29.9	%		11.4	%
Samsung Electronics Co. Ltd.		22.6	%		30.0	%
Intel Corporation		*	**		16.9	%

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

The following customers accounted for 10% or more of total revenue

	Three Months Ended						Six Months Ended
	June 30, 2012			July 2, 2011			June 30, 2012			July 2, 2011
Samsung Electronics Co. Ltd.		34.3	%		25.6	%		37.3	%		26.5	%
SK Hynix		24.6	%		18.1	%		16.8	%		15.0	%
Intel Corporation		13.9	%		12.8	%		22.1	%		20.6	%