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Inventories (Tables)
12 Months Ended
Dec. 31, 2018
Inventory Disclosure [Abstract]  
Schedule of Inventory, Current

The amounts shown in the accompanying consolidated balance sheets are analyzed as follows:

 

     December 31,  
     2017      2018  

Bunkers

     1,312,116        1,082,384  

Lubricants

     1,450,183        1,264,339  
  

 

 

    

 

 

 

Total

     2,762,299        2,346,723