Voyage Expenses (Details) - USD ($)	9 Months Ended	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2016	Mar. 31, 2015
Voyage Expenses.
Bunkers	$ 5,271,126	$ 7,240,544	$ 15,678,905
Port charges and other related expenses	552,634	2,558,697	3,603,707
Brokers' commissions	386,244	1,335,584	1,703,589
Security cost	298,820	370,762	709,035
War risk insurances	37,001	219,261	146,320
Other voyage expenses	125,146	339,834	240,300
Total voyage expenses	$ 6,670,971	$ 12,064,682	$ 22,081,856