Segment Reporting and Geographic Information

6 Months Ended

Jun. 30, 2014

Segment Reporting and Geographic Information [Abstract]

Segment Reporting Disclosure [Text Block]

Segment Reporting and Geographic Information

The Company is engaged in the design, development, manufacture and support of high-performance control metrology, defect inspection, advanced packaging lithography and data analysis systems used by microelectronics device manufacturers. The Company and its subsidiaries currently operate in a single operating segment: the design, development, manufacture and support of high-performance process control defect inspection, metrology, and process control software systems used by microelectronics device manufacturers, and therefore have one reportable segment. The Company’s chief operating decision maker is the Chief Executive Officer. The chief operating decision maker allocates resources and assesses performance of the business and other activities at the reporting segment level.

The following table lists the different sources of revenue:

	Three Months Ended								Six Months Ended
	June 30,								June 30,
	2014				2013				2014				2013
Systems and Software:
Inspection	$	22,852	53	%	$	26,829	58	%	$	40,853	48	%	$	51,708	59	%
Metrology	4,652		11	%	5,869		13	%	10,401		12	%	6,157		7	%
Lithography	—		—	%	—		—	%	3,657		5	%	3,700		4	%
Data Analysis and Review	6,956		16	%	4,856		11	%	12,930		15	%	9,013		10	%
Parts	5,072		12	%	5,255		11	%	10,112		12	%	10,801		13	%
Services	3,486		8	%	3,250		7	%	6,714		8	%	6,330		7	%
Total revenue	$	43,018	100	%	$	46,059	100	%	$	84,667	100	%	$	87,709	100	%

For geographical revenue reporting, revenues are attributed to the geographic location in which the product is shipped.  Revenue by geographic region is as follows:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2014		2013		2014		2013
United States	$	9,704	$	10,077	$	19,638	$	19,478
Taiwan	12,252		19,490		20,182		32,621
Japan	5,068		1,319		6,353		3,707
China	2,295		4,520		7,125		7,269
South Korea	887		1,644		8,439		5,067
Other Asia	5,995		3,167		12,586		8,575
Germany	3,908		1,550		5,251		4,075
Other Europe	2,909		4,292		5,093		6,917
Total revenue	$	43,018	$	46,059	$	84,667	$	87,709

The following customers each accounted for more than 10% of total revenues for the indicated periods.

	Six Months Ended
	June 30,
	2014		2013
Customer A	11.1	%	10.8	%
Customer B	6.2	%	11.0	%
Customer C	4.1	%	10.0	%