Commitments and Contingencies (Tables)

3 Months Ended

Jun. 30, 2018

Commitments and Contingencies

Schedule of operating lease rent expense

	Three months ended
	June 30, 2018		June 30, 2017
Operating lease rent expense	$	127,482	$	106,192

Schedule of operating leases

	June 30, 2018
Less than one year	$	466,647
One to three years		483,459
Three to five years		393,715
Total	$	1,343,821

Schedule of future minimum fixed time charter contracts

	June 30, 2018
Less than one year	$	32,713,113
One to three years		17,666,365
Total	$	50,379,478