Revenues (Details) - USD ($)	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Revenues	$ 274,221,448	$ 315,938,812	$ 333,429,998
Net pool revenues - related party
Revenues	246,305,480	292,679,614	298,079,123
Time charter revenues
Revenues	22,377,211	19,492,595	34,111,230
Other revenue, net
Revenues	$ 5,538,757	$ 3,766,603	$ 1,239,645