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Business Segments and Significant Customers
 3 Months Ended
Mar. 31, 2012
Business Segments and Significant Customers  
Business Segments and Significant Customers

Note 5. Business Segments and Significant Customers

 

The Company operates in one business segment and uses one measurement of profitability for its business. Revenue attributed to the United States and to all foreign countries is based on the geographical location of the customer.

 

The Company recognized revenue from customers in North America, Asia and Europe as follows (in thousands):

 

 

 

Three Months Ended

 

 

 

March 31,

 

 

 

2012

 

2011

 

United States

 

$

581

 

$

1,346

 

Taiwan

 

437

 

789

 

Japan

 

394

 

1,294

 

Europe

 

12

 

106

 

Other Asia

 

—

 

4

 

Total

 

$

1,424

 

$

3,539

 

 

Customers who accounted for at least 10% of total revenues were as follows:

 

 

 

Three Months Ended
March 31,

 

 

 

2012

 

2011

 

Customer A

 

30

%

22

%

Customer B

 

26

%

12

%

Customer C

 

17

%

20

%

 

Three customers accounted for 88% of net accounts receivable at March 31, 2012. Four customers accounted for 96% of net accounts receivable at December 31, 2011.