Other accrued liabilities (Tables)

12 Months Ended

Dec. 31, 2018

Other Liabilities Disclosure [Abstract]

Schedule of Other Accrued Liabilities

Other accrued liabilities consist of:

	December 31, 2018		December 31, 2017
Vessel and voyage expenses	$	4,981,596	$	5,373,389
General and administrative expenses	4,768,244		6,050,078
Other expenses	314,177		386,899
Balance	$	10,064,017	$	11,810,366