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Inventory (Tables)
6 Months Ended
Jun. 30, 2017
Inventory Disclosure [Abstract]  
Inventory

Inventory consisted of the following at June 30, 2017 and December 31, 2016 (in thousands):

 

 

June 30,

 

 

December 31,

 

  

2017

 

 

2016

 

Finished goods

$

1,444

 

 

$

 

Work-in-process

 

1,999

 

 

 

1,803

 

Raw materials and supplies

 

32,689

 

 

 

18,388

 

Inventory

$

36,132

 

 

$

20,191