Vessels Under Construction (Details) - USD ($)	12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Vessels under construction
Capitalized interest	$ 4,809,014	$ 3,501,620
Vessels under commitment
Vessels under construction
Balance	398,175,504
Installment payments to shipyards	867,187,966
Other capitalized expenditures	22,699,783
Capitalized interest	4,809,014
Vessels delivered (transferred to Vessels)	(1,292,872,267)
Balance		$ 398,175,504
Amount paid for LPG coolant	5,000,000
Vessels under commitment | Third party vendors
Vessels under construction
Other capitalized expenditures	17,300,000
Vessels under commitment | Employee related costs
Vessels under construction
Other capitalized expenditures	$ 400,000