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Note 5 - Advances for Vessels Under Construction and Acquisitions (Tables)
 12 Months Ended
Dec. 31, 2014
Advances For Vessels Under Construction And Acquisitions [Abstract]  
Advances for Vessels Under Construction and Acquisitions [Table Text Block]
       
Balance, December 31, 2012
    19,321,045  
Advances for vessels under construction and acquisitions
    50,396,200  
Capitalized interest
    819,296  
Capitalized expenses
    40,894  
 
       
Balance, December 31, 2013
    70,577,435  
Advances for vessels under construction and acquisitions
    124,973,343  
Capitalized interest
    2,113,297  
Capitalized expenses
    2,805,342  
Vessels delivered
    (101,459,533 )
Vessels cancelled (Note 3)
    (10,044,799 )
         
Balance, December 31, 2014
    88,965,085