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Information about Geographic Areas (Tables)
 9 Months Ended
Sep. 30, 2017
Segments Geographical Areas [Abstract]  
Schedule of Revenue by Geographic Area

The following table sets forth revenue by geographic area (in thousands):

 

 

Three Months Ended September 30,

 

 

Nine Months Ended September 30,

 

 

 

2017

 

 

2016

 

 

2017

 

 

2016

 

United States

 

$

2,473

 

 

$

4,060

 

 

$

9,582

 

 

$

17,421

 

Japan

 

 

330

 

 

 

—

 

 

 

330

 

 

 

313

 

Asia-Pacific ex Japan

 

 

5,770

 

 

 

6,393

 

 

 

16,593

 

 

 

18,365

 

Europe and Middle East

 

 

49

 

 

 

121

 

 

 

150

 

 

 

722

 

Total

 

$

8,622

 

 

$

10,574

 

 

$

26,655

 

 

$

36,821