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INVENTORIES (Tables)
 3 Months Ended
Mar. 31, 2013
INVENTORIES [Abstract]  
INVENTORIES
The components of inventories are as follows (in thousands):
 
 
 
MARCH 31,
 
 
DECEMBER 31,
 
 
 
2013
 
 
2012
 
Finished goods
 
$
21,681
 
 
$
24,657
 
Work in process
 
 
5,240
 
 
 
3,743
 
Raw materials and supplies
 
 
27,037
 
 
 
24,095
 
 
 
$
53,958
 
 
$
52,495