Net Pool Income (Details) - USD ($)	3 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Net Pool Income
Gross revenues	$ 20,300,000
Voyage expenses	4,500,000
General and administrative expenses	500,000
Reimbursement of general and administrative expenses	200,000
Pool Revenue	$ 15,310,559	$ 0