CONCENTRATION OF RISK

3 Months Ended

Mar. 31, 2016



14.	CONCENTRATION OF RISK:

Included in technology development and support revenue in the accompanying statement of income is $57,000 and $11,000 for the three months ended March 31, 2016 and 2015, respectively, of revenue which was derived from contracts with United States government agencies. Revenue derived from contracts with United States government agencies represented less than 1% of the consolidated revenue for the both three months ended March 31, 2016, and 2015.

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



	% of Revenues for the three months ended March 31,		Accounts Receivable as of
Customer	2016	2015	March 31, 2016
A	50%	26%	$	12,206
B	36%	41%	5,816
C	6%	1%	1,651

Revenues from outside of North America represented approximately 99% of the consolidated revenue for both the three months ended March 31, 2016 and 2015. Revenues by geographic area are as follows (in thousands):



	Three Months Ended March 31,
Country	2016		2015
South Korea	$	25,963	$	22,222
Japan	1,287		7,760
Other non-U.S. locations	2,370		1,016
Total non-U.S. locations	29,620		30,998
United States	83		225
Total revenue	$	29,703	$	31,223

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):



	March 31, 2016		December 31, 2015
United States	$	22,167	$	22,187
Other	195		220
Total long-lived assets	$	22,362	$	22,407

Substantially all chemical materials were purchased from one supplier. See Note 8.