Revenues (Details) - USD ($)	3 Months Ended		9 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Revenues	$ 88,479,024	$ 85,437,806	$ 216,354,625	$ 238,228,227
Net pool revenues - related party
Revenues	82,659,967	77,470,478	199,312,944	208,507,192
Time charter revenues
Revenues	4,665,664	7,859,035	13,928,732	29,112,464
Other revenues, net
Revenues	$ 1,153,393	$ 108,293	$ 3,112,949	$ 608,571