Vessels Under Construction (Details) - USD ($)	6 Months Ended	12 Months Ended
	Sep. 30, 2021	Mar. 31, 2021
Vessels under construction
Bareboat charter agreement term of contract		13 years
Balance	$ 8,059,748
Vessels under commitment
Vessels under construction
Bareboat charter agreement term of contract	13 years
Installment payments	$ 8,000,000
Other capitalized expenditures	59,748
Balance	$ 8,059,748