GEOGRAPHIC AND CUSTOMER CONCENTRATION INFORMATION (Tables)

6 Months Ended

Jun. 30, 2013

Geographic and Customer Concentration Information [Abstract]

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):



	Three Months Ended						Six Months Ended
	June 30, 2013			July 1, 2012			June 30, 2013		July 1, 2012
	Amount		Percent	Amount		Percent	Amount	Percent	Amount	Percent
Net sales:
United States	$	3,252	13	$	2,074	6	6,336	14	12,244	14
South Korea	1,407		6	18,798		54	2,275	5	43,056	51
Taiwan	14,659		60	4,087		12	26,724	60	12,030	14
Other Asia	4,300		17	6,157		18	7,318	16	10,222	12
Europe and others	956		4	3,768		10	2,158	5	7,836	9
	$	24,574	100	$	34,884	100	44,811	100	85,388	100

Summary of Geographic Information Relating to Property and Equipment

Geographical information relating to our property and equipment, net, as of June 30, 2013 and December 31, 2012 was as follows (in thousands):



	June 30, 2013		December 31, 2012
Property and equipment, net:
United States	$	3,614	$	3,824
Germany	2,769		3,131
Others	110		432
	$	6,493	$	7,387

- Definition

Tabular disclosure of information concerning material long-lived assets (excluding financial instruments, customer relationships with financial institutions, mortgage and other servicing rights, deferred policy acquisition costs, and deferred taxes assets) located in identified geographic areas and/or the amount of revenue from external customers attributed to that country from which revenue is material. An entity may also provide subtotals of geographic information about groups of countries.

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