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Note 4 - Vessels, Net (Tables)
 6 Months Ended
Jun. 30, 2017
Notes Tables  
Property, Plant and Equipment [Table Text Block]
   
 
Costs
 
     Accumulated
Depreciation		       Net Book
Value		  
             
Balance, January 1, 2017    
139,378,104
      
(33,793,471
 )    
105,584,633
  
Depreciation for the period    
-
      
(4,273,776
 )    
(4,273,776
 )
Vessel acquisitions    
9,209,949
      
 
      
9,209,949
  
Vessel sale    
(1,807,199
 )    
 
      
(1,807,199
 )
Delivery of newbuilding vessel    
17,788,540
      
 
      
17,788,540
  
Balance, June 30, 2017    
164,569,394
      
(38,067,247
 )    
126,502,147