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Note 5 - Fair Value of Financial Instruments (Tables)
3 Months Ended
Mar. 31, 2013
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]
(in thousands)
     
Hedge derivative assets
 
March 31,
2013
   
December 31,
2012
 
Fair Value of Derivatives
  $ 722     $ 524  
Quoted Prices in Active Markets (Level 1)
    -       -  
Significant Other Observable Inputs (Level 2)
  $ 722     $ 524  
Significant Unobservable Inputs (Level 3)
    -       -