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Inventory
 6 Months Ended
Jun. 30, 2016
Inventory Disclosure [Abstract]  
Inventory
Inventory

Inventory consisted of the following as of the date indicated (in thousands):
 
June 30, 2016
 
December 31, 2015
Raw materials
$
6,228

 
$
3,575

Work in process
2,970

 
2,895

Finished goods
3,312

 
3,668

 
$
12,510

 
$
10,138