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Note 5 - Fair Value Measurement and Fair Value of Financial Instruments (Tables)
9 Months Ended
Sep. 30, 2012
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]
Hedge derivative assets
 
September 30, 2012
   
December 31, 2011
 
Fair Value of Derivatives
  $ 1,085     $ 82  
Quoted Prices in Active Markets (Level 1)
    -       -  
Significant Other Observable Inputs (Level 2)
  $ 1,085     $ 82  
Significant Unobservable Inputs (Level 3)
    -       -