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Note 16 - Derivative Financial Instruments (Tables)
12 Months Ended
Dec. 31, 2012
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]
Derivatives not designated as hedging instruments
 
 
Balance Sheet Location
 
December 31, 2011
   
December 31, 2012
 
               
Interest rate swap contracts
Current liabilities – Derivatives
    1,907,088       1,718,438  
                   
Interest rate contracts
Long-term liabilities – Derivatives
    1,544,409       675,130  
                   
Total derivative liabilities
      3,451,497       2,393,568  
Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance [Table Text Block]
Derivatives not designated as hedging instruments
 
Location of gain (loss) recognized
 
Year Ended December 31, 2010
   
Year Ended December 31, 2011
   
Year Ended December 31, 2012
 
FFA contracts – Fair value
Change in fair value of derivatives
    9,692,455       (574,336 )     -  
FFA contracts   - Realized loss
Change in fair value of derivatives
    (10,875,776 )     910,088       (2,247 )
Interest rate – Fair value
Change in fair value of derivatives
    (1,468,650 )     (76,516 )     1,057,928  
Interest rate contracts   - Realized loss
Change in fair value of derivatives
    (1,569,846 )     (1,758,158 )     (1,693,084 )
Total loss on derivatives
      (4,221,817 )     (1,498,122 )     (637,403 )