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Note 12 - Fair Value Measurements (Tables)
12 Months Ended
Dec. 31, 2013
Fair Value Disclosures [Abstract]  
Fair Value Measurements, Recurring and Nonrecurring [Table Text Block]

Fair Value at December 31, 2013

 

Level 1

   

Level 2

   

Level 3

 

Measured on a recurring basis:

                       

Derivative contract, net

  $ -     $ (2,900 )   $ -  

Fair Value at December 31, 2012

 

Level 1

   

Level 2

   

Level 3

 

Measured on a recurring basis:

                       

Derivative contract, net

  $ -     $ (4,679 )   $ -  
Schedule of Carrying Values and Estimated Fair Values of Debt Instruments [Table Text Block]
   

December 31,
2013

   

December 31,

2012

 

Carrying value

  $ 132,616     $ 130,469  

Fair value

    126,786       134,688