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Inventories (Tables)
 3 Months Ended
Mar. 31, 2016
Inventory, Net [Abstract]  
Schedule of Inventory, Current
The components of inventory are as follows:
 
March 31,
 
December 31,
 
2016
 
2015
Raw materials
$
16,948

 
$
17,924

Work-in-process
162,979

 
180,324

Finished goods
114,035

 
91,626

 
$
293,962

 
$
289,874