GEOGRAPHIC AND CUSTOMER CONCENTRATION INFORMATION

3 Months Ended

Mar. 30, 2014

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 revenues 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 revenues by geographic areas based on the installation locations of the systems and the location of services rendered (in thousands, except percentages):

	Three Months Ended
	March 30, 2014			March 31, 2013
	Amount		Percent	Amount		Percent
Net revenues:
United States	$	4,183	10	$	3,084	15
South Korea	10,259		24	868		4
China	13,081		30	1,952		10
Taiwan	10,822		25	12,065		60
Other Asia	2,281		5	1,066		5
Europe and others	2,572		6	1,202		6
	$	43,198	100	$	20,237	100

For the three months ended March 30, 2014, two customers accounted for 10 percent or more of our total net revenues. Sales to these customers represented approximately 59 percent and 16 percent of our total net revenues, respectively.

For the three months ended March 31, 2013, two customers accounted for 10 percent or more of our total net revenues, representing approximately 47 percent and 11 percent of our total net revenues, respectively.

As of March 30, 2014, two customers accounted for 10 percent or more of our total net accounts receivable, representing approximately 45 percent and 29 percent and of our total net accounts receivable, respectively. As of December 31, 2013, two customers accounted for 10 percent or more of our net accounts receivable, representing approximately 61 percent and 23 percent of our total net accounts receivable, respectively.

Geographical information relating to our property and equipment, net, as of March 30, 2014 and December 31, 2013 was as follows (in thousands):

	March 30, 2014		December 31, 2013
Property and equipment, net:
United States	$	4,819	$	4,949
Germany	3,984		4,129
Others	244		138
	$	9,047	$	9,216