Vessels Under Construction (Details) - USD ($)	9 Months Ended	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2016	Mar. 31, 2015
Vessels under construction
Balance		$ 398,175,504
Capitalized interest	$ 972,010	4,809,014	$ 3,501,620
Balance			398,175,504
Vessels under commitment
Vessels under construction
Balance		398,175,504	323,206,206
Installment payments to shipyards		867,187,966	300,866,261
Other capitalized expenditures		22,699,783	11,016,951
Capitalized interest		4,809,014	3,501,620
Vessels delivered (transferred to Vessels)		(1,292,872,267)	(240,415,534)
Balance	$ 323,206,206		398,175,504
Amount paid for LPG coolant		5,000,000	1,400,000
Vessels under commitment | Third party vendors
Vessels under construction
Other capitalized expenditures		17,300,000	8,600,000
Vessels under commitment | Employee related costs
Vessels under construction
Other capitalized expenditures		$ 400,000	100,000
Vessels under commitment | Manager
Vessels under construction
Other capitalized expenditures			$ 900,000