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Inventory (Tables)
3 Months Ended
Mar. 31, 2018
Inventory Disclosure [Abstract]  
Inventory

Inventory consists of the following (in thousands):

 

 

 

March 31, 2018

 

 

December 31, 2017

 

Raw materials

 

$

1,742

 

 

$

1,796

 

Work-in-process

 

 

7,918

 

 

 

4,843

 

Finished goods

 

 

1,015

 

 

 

4,087

 

Total inventory

 

$

10,675

 

 

$

10,726