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CONCENTRATION OF RISK
 3 Months Ended
Mar. 31, 2015
Risks and Uncertainties [Abstract]  
CONCENTRATION OF RISK
14.
CONCENTRATION OF RISK:
Included in technology development and support revenue in the accompanying statement of income is $11,000 and $70,000 for the three months ended March 31, 2015 and 2014, 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, 2015, and 2014.
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
 
2015
 
2014
 
March 31, 2015
A
 
41%
 
35%
 
$
8,281

B
 
26%
 
25%
 
6,193

C
 
15%
 
33%
 
1,523


Revenues from outside of North America represented approximately 99% of the consolidated revenue for both the three months ended March 31, 2015 and 2014. Revenues by geographic area are as follows (in thousands):
 
 
Three Months Ended March 31,
Country
 
2015
 
2014
South Korea
 
$
22,222

 
$
22,956

Japan
 
7,760

 
14,058

Taiwan
 
583

 
321

Other non-U.S. locations
 
433

 
337

Total non-U.S. locations
 
30,998

 
37,672

United States
 
225

 
167

Total revenue
 
$
31,223

 
$
37,839


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, 2015
 
December 31, 2014
United States
 
$
20,347

 
$
19,763

Other
 
138

 
159

Total long-lived assets
 
$
20,485

 
$
19,922


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