Condensed Consolidated Statements of Operations - USD ($)	3 Months Ended		6 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Revenues.
Revenues	$ 54,710,277	$ 91,624,875	$ 127,875,601	$ 152,790,421
Expenses
Voyage expenses	858,919	855,023	1,674,114	1,194,137
Charter hire expenses	4,518,850	2,055,000	9,234,448	4,110,000
Vessel operating expenses	21,435,904	17,393,685	38,825,267	33,513,638
Depreciation and amortization	17,202,714	16,473,418	34,093,127	32,739,839
General and administrative expenses	5,912,810	5,895,406	17,215,786	12,631,241
Total expenses	49,929,197	42,672,532	101,042,742	84,188,855
Other income-related parties	632,680	314,084	1,100,703	937,367
Operating income	5,413,760	49,266,427	27,933,562	69,538,933
Other income/(expenses)
Interest and finance costs	(6,665,144)	(9,303,373)	(15,752,380)	(19,000,655)
Interest income	91,349	344,919	216,184	706,955
Unrealized gain/(loss) on derivatives	3,968,686	(667,110)	3,472,880	(6,737,899)
Realized gain/(loss) on derivatives	(2,129,695)	709,146	(2,935,924)	1,742,141
Other gain/(loss), net	(141,006)	361,887	(228,367)	537,480
Total other income/(expenses), net	(4,875,810)	(8,554,531)	(15,227,607)	(22,751,978)
Net income	$ 537,950	$ 40,711,896	$ 12,705,955	$ 46,786,955
Weighted average shares outstanding Basic (in shares)	50,711,714	54,646,451	50,632,392	54,599,978
Weighted average shares outstanding Diluted (in shares)	50,754,507	54,763,634	50,716,177	54,825,183
Earnings per common share - basic (in dollars per share)	$ 0.01	$ 0.75	$ 0.25	$ 0.86
Earnings per common share - diluted (in dollars per share)	$ 0.01	$ 0.74	$ 0.25	$ 0.85
Net pool revenues - related party
Revenues.
Revenues	$ 49,723,556	$ 80,944,577	$ 116,652,977	$ 131,036,714
Time charter revenues
Revenues.
Revenues	4,177,064	10,271,398	9,263,068	21,253,429
Other revenues, net
Revenues.
Revenues	$ 809,657	$ 408,900	$ 1,959,556	$ 500,278