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INVENTORIES (Tables)
12 Months Ended
Dec. 31, 2012
INVENTORIES [Abstract]  
Schedule of Inventory
   
December 31,
 
   
2012
   
2011
 
             
Raw materials, parts and supplies
  $ 8,552     $ 11,172  
Work in progress
    1,404       1,267  
Finished products
    15,017       19,494  
                 
    $ 24,973     $ 31,933