Consolidated Statements of Operations - USD ($)	12 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2015
Revenues.
Net pool revenues—related party	$ 115,753,153	$ 202,918,232
Time charter revenues	49,474,510	38,737,172	$ 26,098,290
Voyage charter revenues	1,296,952	46,194,134	77,331,934
Other revenues	922,556	1,358,291	698,925
Total revenues	167,447,171	289,207,829	104,129,149
Expenses
Voyage expenses	2,965,978	12,064,682	22,081,856
Vessel operating expenses	66,108,062	47,119,990	21,256,165
Management fees-related party			1,125,000
Impairment	0	0	1,431,818
Depreciation and amortization	65,057,487	42,591,942	14,093,744
General and administrative expenses	21,732,864	29,836,029	14,145,086
Loss on disposal of assets		1,125,395
Total expenses	155,864,391	132,738,038	74,133,669
Other income—related party	2,410,542	1,945,396	93,929
Operating income/(loss)	13,993,322	158,415,187	30,089,409
Other income/(expenses)
Interest and finance costs	(28,971,942)	(12,757,013)	(289,090)
Interest income	137,556	148,360	418,597
Unrealized gain(loss) on derivatives	27,491,333	(8,917,503)	1,331,954
Realized loss on derivatives	(13,797,478)	(6,858,126)	(5,291,157)
Foreign currency loss, net	(294,606)	(342,523)	(998,931)
Total other income/(expenses), net	(15,435,137)	(28,726,805)	(4,828,627)
Net income/(loss)	$ (1,441,815)	$ 129,688,382	$ 25,260,782
Earnings/(loss) per common share – basic (in dollars per share)	$ (0.03)	$ 2.29	$ 0.45
Earnings/(loss) per common share – diluted (in dollars per share)	$ (0.03)	$ 2.29	$ 0.45