GEOGRAPHIC AND CUSTOMER CONCENTRATION INFORMATION

12 Months Ended

Dec. 31, 2012

Geographic and Customer Concentration Information [Abstract]

Geographic and Customer Concentration Information

GEOGRAPHIC AND CUSTOMER CONCENTRATION INFORMATION

We have one operating segment in which we design, manufacture and market advanced fabrication equipment for the semiconductor manufacturing industry. The authoritative guidance on segment reporting and disclosure defines operating segment as a component of an enterprise for which separate financial information is available that is evaluated regularly by the chief operating decision maker in deciding how to allocate resources and in assessing performance. As our business is completely focused on one industry segment, the design, manufacture and marketing of advanced fabrication equipment to the semiconductor manufacturing industry, management believes that we have one reportable segment. Our net sales and profits are generated from the sales of systems and services in this one segment. For the purposes of evaluating our reportable segments, our Chief Executive Officer is the chief operating decision maker, as defined in the applicable authoritative guidance.

The following table summarizes net sales by geographic areas based on the installation locations of the systems and the location of services rendered (in thousands, except percentages):

	For the Years Ended December 31,
	2012			2011			2010
	Amount		Percent	Amount		Percent	Amount		Percent
Net sales:
United States	$	17,476	14	$	10,311	6	$	7,211	5
Korea	47,611		38	84,623		46	67,973		49
Taiwan	28,577		23	37,507		20	18,878		14
Other Asia	22,177		17	33,112		18	36,856		27
Europe and others	10,685		8	19,394		10	7,418		5
	$	126,526	100	$	184,947	100	$	138,336	100

In 2012, two customers accounted for 10 percent or more of our total net sales. Sales to these customers represented approximately 41 percent and 12 percent of our total net sales, respectively. In 2011, two customers accounted for 10 percent or more of our total net sales. Sales to these customers represented 42 percent and 10 percent of our total net sales, respectively. In 2010, two customers accounted for 10 percent or more of our total net sales. Sales to these customers represented approximately 40 percent and 12 percent of our total net sales, respectively.

At December 31, 2012, two customers accounted for 10 percent or more of our total net accounts receivable, representing approximately 35 percent and 29 percent of our total net accounts receivable, respectively. At December 31, 2011, three customers accounted for 10 percent or more of our net accounts receivable, representing approximately 48 percent, 15 percent and 13 percent of our total net accounts receivable, respectively.

Geographical information relating to our property and equipment, net, as of December 31, 2012 and December 31, 2011 was as follows (in thousands):

	December 31,
	2012		2011
Property and equipment, net:
United States	$	3,824	$	5,306
Germany	3,131		2,396
Canada	—		2,281
Others	432		569
	$	7,387	$	10,552