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Inventories
 3 Months Ended
Mar. 31, 2017
Inventory Disclosure [Abstract]  
Inventories

8. Inventories

Inventories at March 31, 2017 and December 31, 2016 consisted of the following:

 

 

 

March 31, 2017

 

 

December 31, 2016

 

Raw materials

 

$

44,623

 

 

$

45,507

 

Work in process

 

 

21,933

 

 

 

20,128

 

Finished goods

 

 

72,888

 

 

 

74,205

 

 

 

$

139,444

 

 

$

139,840