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Revenue Recognition (Tables)
3 Months Ended
Mar. 31, 2017
Revenue Recognition [Abstract]  
Product Revenues, Classified by Geographic Location

Product revenues, classified by geographic location, are as follows (in thousands):

 

 

 

Three months ended

 

 

 

March 31, 2017

 

 

March 31, 2016

 

 

 

Product

Revenues

 

 

% of

Total

 

 

Product

Revenues

 

 

% of

Total

 

Americas

 

$

148

 

 

 

25

%

 

$

235

 

 

 

18

%

Japan

 

 

320

 

 

 

54

%

 

 

966

 

 

 

72

%

EMEA

 

 

112

 

 

 

19

%

 

 

132

 

 

 

10

%

Asia Pacific

 

 

11

 

 

 

2

%

 

 

 

 

 

0

%

Total product revenues

 

$

591

 

 

 

100

%

 

$

1,333

 

 

 

100

%