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Note 3 - Inventories (Details) - Summary of Inventories (USD $)
Dec. 31, 2013
Dec. 31, 2012
Inventory [Line Items]    
Inventories, Net $ 1,474,114 $ 1,812,636
Lubricants [Member]
   
Inventory [Line Items]    
Inventories, Net 1,293,780 1,433,129
Victualling [Member]
   
Inventory [Line Items]    
Inventories, Net 180,334 173,883
Bunkers [Member]
   
Inventory [Line Items]    
Inventories, Net   $ 205,624