Revenues (Details) - USD ($)	3 Months Ended		6 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Revenues	$ 63,086,858	$ 54,710,277	$ 126,037,596	$ 127,875,601
Net pool revenues - related party
Revenues	56,721,405	49,723,556	111,883,651	116,652,977
Time charter revenues
Revenues	5,268,603	4,177,064	10,614,742	9,263,068
Other revenues, net
Revenues	$ 1,096,850	$ 809,657	$ 3,539,203	$ 1,959,556