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Vessels Under Construction (Details) - USD ($)
3 Months Ended 12 Months Ended
Jun. 30, 2021
Mar. 31, 2021
Vessels under construction    
Bareboat charter agreement term of contract   13 years
Balance $ 8,057,066  
Vessels under commitment    
Vessels under construction    
Bareboat charter agreement term of contract 13 years  
Installment payments $ 8,000,000  
Other capitalized expenditures 57,066  
Balance $ 8,057,066