Revenues (Details) - USD ($)	3 Months Ended		6 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Revenues	$ 54,710,277	$ 91,624,875	$ 127,875,601	$ 152,790,421
Net pool revenues - related party
Revenues	49,723,556	80,944,577	116,652,977	131,036,714
Time charter revenues
Revenues	4,177,064	10,271,398	9,263,068	21,253,429
Other revenues, net
Revenues	$ 809,657	$ 408,900	$ 1,959,556	$ 500,278