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Information about Geographic Areas (Tables)
 12 Months Ended
Dec. 31, 2015
Information about Geographic Areas  
Schedule of revenue by geographic area

Revenue by geography is based on the billing address of the customer. The following table sets forth revenue by geographic area (in thousands):

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Years Ended December 31, 

 

 

    

2015

    

2014

    

2013

 

United States

 

$
28,327

 

$
42,350

 

$
47,752

 

Japan

 

 
2,848

 

 
2,726

 

 
12,691

 

APAC other

 

 
13,074

 

 
1,781

 

 
2,958

 

Europe and Middle East

 

 
1,073

 

 
838

 

 
4,005

 

Total

 

$
45,322

 

$
47,695

 

$
67,406