Segment Reporting and Geographic Information

6 Months Ended

Jun. 30, 2012

Segment Reporting and Geographic Information [Abstract]

Segment Reporting Disclosure [Text Block]

Segment Reporting and Geographic Information

The Company has one operating and reportable segment, which is reviewed by the Company’s chief decision maker. The Company’s chief decision maker is the Chief Executive Officer. The Company is engaged in the design, development, manufacture and support of high-performance process control metrology, defect inspection and data analysis systems used by semiconductor device manufacturers. The Company and its subsidiaries currently operate in a single reportable segment: the design, development, and manufacture of high-performance process control defect inspection, metrology, and process control software systems used by microelectronic device manufactures. The chief 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,
	2012				2011				2012				2011
Systems and Software:
Inspection	$	33,949	60	%	$	27,850	53	%	$	56,805	56	%	$	50,952	50	%
Metrology	8,782		16	%	9,160		18	%	19,019		19	%	21,343		21	%
Data Analysis and Review	5,584		10	%	6,004		12	%	10,131		10	%	12,151		12	%
Parts	5,146		9	%	5,590		11	%	10,650		10	%	11,830		11	%
Services	2,865		5	%	2,939		6	%	5,430		5	%	5,866		6	%
Total revenue	$	56,326	100	%	$	51,543	100	%	$	102,035	100	%	$	102,142	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,
	2012		2011		2012		2011
United States	$	8,783	$	12,527	$	18,137	$	25,102
Taiwan	15,269		8,385		23,934		18,533
Japan	4,007		2,403		5,401		6,280
China	4,076		1,853		5,989		8,317
South Korea	10,842		8,358		25,334		13,910
Other Asia	4,899		6,919		10,003		9,807
Austria	4,982		3,665		7,580		6,666
Germany	1,368		5,592		1,741		9,127
Other Europe	2,100		1,841		3,916		4,400
Total revenue	$	56,326	$	51,543	$	102,035	$	102,142

Customers comprising 10% or more of revenue:

	Six Months Ended
	June 30,
	2012		2011
Customer A	18.4	%	8.6	%
Customer B	12.5	%	0.7	%
Customer C	7.5	%	13.1	%
Customer D	7.1	%	13.6	%