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FINANCIAL INSTRUMENTS (Tables)
 12 Months Ended
Dec. 31, 2012
FINANCIAL INSTRUMENTS [Abstract]  
Fair Value of Derivative Contracts
   
Derivative Assets
Reported in Other
Current Assets
    
Derivative Liabilities
Reported in Other
Current Liabilities
  
   
December 31,
    
December 31,
  
   
2 0 1 2
    
2 0 1 1
    
2 0 1 2
    
2 0 1 1
  
                         
Derivatives designated as hedging
instruments in cash flow hedge
   $ 449     $ -     $ -     $ 402
Balance of Derivative Instruments and Impact on Accumulated Other Comprehensive Income
Balance at December 31,2011
   $ (402 )
Amount of loss recognized in OCI
     735  
Amount of gain reclassified from OCI to income
     116  
Balance at December 31,2012
   $ 449  
Impact of Derivative Instruments on Total Operating Expenses
Year ended December 31,
  
   
2 0 1 2
    
2 0 1 1
    
2 0 1 0
  
                   
Gain (loss) on derivative instruments
   $ (116 )   $ 496     $ 113