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Inventories
 6 Months Ended
Jun. 30, 2015
Inventories  
Inventories

 

4.  Inventories

 

Inventories consist of the following, in thousands:

 

 

June 30,

 

December 31,

 

 

 

2015

 

2014

 

 

 

(unaudited)

 

 

 

 

 

 

 

 

 

Raw materials

 

$
2,363 

 

$
2,491 

 

Work in process

 
4,040 

 
6,328 

 

Finished goods

 
7,189 

 
4,622 

 

 

 

 

 

 

 

 

 

$
13,592 

 

$
13,441