Commitments and Contingencies (Tables)

6 Months Ended

Sep. 30, 2018

Commitments and Contingencies

Schedule of future minimum scrubber purchases commitments

	September 30, 2018
Less than one year	$	3,024,231
One to three years		2,387,551
Total	$	5,411,782

Schedule of operating lease rent expense

	Three months ended				Six months ended
	September 30, 2018		September 30, 2017		September 30, 2018		September 30, 2017
Operating lease rent expense	$	106,117	$	108,358	$	233,599	$	214,550

Schedule of operating leases

	September 30, 2018
Less than one year	$	422,421
One to three years		473,247
Three to five years		329,217
Total	$	1,224,885

Schedule of future minimum fixed time charter contracts

	September 30, 2018
Less than one year	$	29,578,114
One to three years		12,431,365
Total	$	42,009,479