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Note F - Financial Risk Management and Derivatives (Tables)
12 Months Ended
Dec. 31, 2012
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]
 
Asset Derivatives
 
Liability Derivatives
 
 
Balance Sheet Location
 
2012
   
2011
 
Balance Sheet Location
 
2012
   
2011
 
    Fair Value     Fair Value     Fair Value     Fair Value    
Derivatives Designated as Hedging Instruments
               
Foreign exchange contracts
Prepaid expenses and other current assets
  $ 171     $ 1,321  
Accrued liabilities
  $ 1,057     $ 306  
Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance [Table Text Block]
 
Derivatives in
Cash Flow
 
Amount of Gain/(Loss) Recognized in Other Comprehensive Earnings (“OCE”) on Derivative (Effective Portion)
 
Location of
Gain/(Loss)
Reclassified
from OCE
into Income
 
Amount of Gain/(Loss) Reclassified from OCE into Income (Effective Portion)
 
 Location of
Gain/(Loss)
Recognized
in Income on
Derivative
(Ineffective
Portion and
Amount
Excluded
 from
 
Amount of Gain/(Loss) Recognized in Income on Derivative (Ineffective Portion and Amount Excluded from Effectiveness Testing)
 
Hedging
Relationships
 
2012
   
2011
   
2010
 
  (Effective
Portion)
 
2012
   
2011
   
2010
 
 Effectiveness
Testing)
 
2012
   
2011
   
2010
 
Foreign exchange contracts
  $ (1,266 )   $ 961     $ 416  
Cost of goods sold
  $ 84     $ (545 )   $ (326 )
Selling, general and administrative expenses
  $ (44 )   $ (20 )   $ 81