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INVENTORIES (Tables)
3 Months Ended
Mar. 31, 2016
Inventory Disclosure [Abstract]  
Schedule of components of inventory
Inventories consist of the following at March 31, 2016 and December 31, 2015 and include reserves of $3,217 and $3,682, respectively:

 
March 31,
2016
 
December 31,
2015
Raw materials
$
13,408

 
$
14,513

Work-in-process
8,427

 
8,112

Finished goods
14,262

 
12,320

Supplies
481

 
504

 
 
 
 
 
$
36,578

 
$
35,449