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Note 14 - Derivative Financial Instruments (Tables)
12 Months Ended
Dec. 31, 2019
Notes Tables  
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]
Derivatives not designated as hedging instruments  
Balance Sheet Location
 
 
December 31, 2018
 
    December 31, 2019  
                     
Interest rate swap contract  
Current liabilities – Derivatives
   
41,435
     
-
 
Total derivative liabilities  
 
   
41,435
     
-
 
Derivative Instruments, Gain (Loss) [Table Text Block]
Derivatives not designated as hedging instruments  
 
Location of gain (loss) recognized
    Year Ended December 31, 2017       Year Ended December 31, 2018       Year Ended December 31, 2019  
Interest rate swap contract– Unrealized (loss) / gain
(Gain) / loss on derivativtes, net
 
(5,901
)    
204,647
     
-
 
Interest rate swap contract  - Realized  gain / (loss)  
Gain / (loss) on derivatives, net
   
19,071
     
(201,745
)    
(2,885
)
Total  net gain / (loss) on interest rate swap contract  
 
   
13,170
     
2,902
     
(2,885
)
FFA contracts not designated as hedging instruments     Location of gain (loss) recognized     Year Ended December 31, 2017       Year Ended December 31, 2018     Year Ended December 31, 2019
FFA contracts – Unrealized loss    
Gain / (loss) on derivatives, net
   
(781
)    
-
     
-
 
FFA contracts – Realized loss    
Gain / (loss) on derivatives, net
   
-
     
(47,245
)    
-
 
Total loss on FFA contracts    
 
   
(781
)    
(47,245
)    
-