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INVENTORIES (Tables)
12 Months Ended
Dec. 31, 2012
INVENTORIES [Abstract]  
Schedule of Inventories
    December 31,  
    2011     2012  
             
Raw materials   $ 12,135     $ 11,626  
Work-in-progress     540       785  
Finished goods     35,410       38,139  
                 
    $ 48,085     $ 50,550