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Note 4 - Vessels, Net (Tables)
12 Months Ended
Dec. 31, 2012
Property, Plant and Equipment [Table Text Block]
   
 
 Costs
   
Accumulated
Depreciation
   
Net Book
 Value
 
                   
Balance, January 1, 2010
    310,327,764       (53,056,940 )     257,270,824  
-Depreciation for the year
    -       (17,979,750 )     (17,979,750 )
-      -Purchase of vessels
    16,121,360       -       16,121,360  
Balance, December 31, 2010
    326,449,124       (71,036,690 )     255,412,434  
-Depreciation for the year
    -       (18,348,556 )     (18,348,556 )
-      -Purchase of vessels
    -       -       -  
Balance, December 31, 2011
    326,449,124       (89,385,246 )     237,063,878  
-Depreciation for the year
    -       (17,385,608 )     (17,385,608 )
-      -Sale of vessels
    (19,318,073 )     6,574,549       (12,743,524 )
-      -Purchase of vessels
    -       -       -  
Balance, December 31, 2012
    307,131,051       (100,196,305 )     206,934,746