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MARGIN ACCOUNTS, DERIVATIVES AND FAIR VALUE MEASURES (Tables)
12 Months Ended
Dec. 31, 2018
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]  
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value
 
 
Balance at December 31, 2018
 
Level 1
 
Level 2
 
Level 3
Margin accounts
 
$
1,820,657

 
$
1,820,657

 
$

 
$

Fuel swap contracts
 
$
(3,165,967
)
 
$

 
$
(3,165,967
)
 
$

Forward freight agreements
 
$
(59,940
)
 
$

 
$
(59,940
)
 
$

 
 
 
Balance at December 31, 2017
 
Level 1
 
Level 2
 
Level 3
Margin accounts
 
$
912,981

 
$
912,981

 
$

 
$

Fuel swap contracts
 
$
377,273

 
$

 
$
377,273

 
$

Forward freight agreements
 
$
265,768

 
$

 
$
265,768

 
$