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INVENTORIES (Tables)
 3 Months Ended
Mar. 31, 2016
INVENTORIES [Abstract]  
Components of inventories
The components of inventories are as follows:
 
 
 
March 31,
  
December 31,
 
 
 
2016
  
2015
 
Raw materials
 
$
43,299
  
$
42,036
 
Work in progress
  
17,529
   
16,908
 
Finished goods
  
39,153
   
39,566
 
Inventories
 
$
99,981
  
$
98,510