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Inventory (Tables)
 12 Months Ended
Dec. 31, 2016
Inventory Disclosure [Abstract]  
Schedule of Inventory

Inventory as of December 31, 2016 and 2015 consisted of the following:

 

 

 

December 31,

 

(in thousands)

 

2016

 

 

2015

 

Raw materials

 

$

4,483

 

 

$

900

 

Work in process

 

 

8,651

 

 

 

2,743

 

Finished goods

 

 

1,420

 

 

 

74

 

Total inventory

 

$

14,554

 

 

$

3,717