CONCENTRATION OF RISK

9 Months Ended

Sep. 30, 2016

15.	CONCENTRATION OF RISK:

Included in technology development and support revenue in the accompanying statement of operations is $32,000 and $67,000 for the three months ended September 30, 2016 and 2015, respectively, and $148,000 and $110,000 for the nine months ended September 30, 2016 and 2015, respectively, of revenue which was derived from contracts with United States government agencies. Revenues derived from contracts with United States government agencies represented less than 1% of the consolidated revenue for all periods presented.

Revenues and accounts receivable from the Company's largest customers were as follows (in thousands):

	% of Revenues for the three months ended September 30,				% of Revenues for the nine months ended September 30,				Accounts Receivable as of
Customer	2016		2015		2016		2015		September 30, 2016
A		45%		48%		33%		29%	$	10,262
B		36%		39%		57%		56%	$	6,117
C		7%		2%		5%		1%	$	3,235

Revenues from outside of North America represented approximately 95% and 99% of the consolidated revenue for the three months ended September 30, 2016 and 2015, respectively, and 98% and 99% of the consolidated revenue for the nine months ended September 30, 2016 and 2015, respectively. Revenues by geographic area are as follows (in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
Country	2016		2015		2016		2015
South Korea	$	24,852	$	34,514	$	111,994	$	110,547
China		2,095		843		5,663		1,523
Japan		1,230		3,274		3,334		13,931
Other non-U.S. locations		396		523		1,416		1,726
Total non-U.S. locations	$	28,573	$	39,154	$	122,407	$	127,727
United States		1,641		265		1,902		1,007
Total revenue	$	30,214	$	39,419	$	124,309	$	128,734

The Company attributes revenue to different geographic areas on the basis of the location of the customer.

Long-lived assets (net), by geographic area are as follows (in thousands):

	September 30, 2016		December 31, 2015
United States	$	25,621	$	22,187
Other		147		220
Total long-lived assets	$	25,768	$	22,407

Substantially all chemical materials were purchased from one supplier. See Note 9.