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Long-term Debt (Details) - USD ($)				9 Months Ended
Long-term Debt (Details) - USD ($)	Dec. 29, 2021	Nov. 30, 2021	Oct. 24, 2021	Dec. 31, 2021	Dec. 31, 2020	Mar. 31, 2021	Mar. 31, 2015
Long-Term Debt
Proceeds from long-term debt borrowings				$ 83,400,000	$ 55,378,172
Debt obligations
Total debt obligations				584,961,773		$ 602,087,981
Less: deferred financing fees				8,693,950		10,615,937
Total				576,267,823		591,472,044
Presented as follows:
Current portion of long-term debt				69,530,028		51,820,283
Long-term debt-net of current portion and deferred financing fees				506,737,795		539,651,761
Total				576,267,823		591,472,044
Deferred financing fees
Deferred finance fees, beginning				10,615,937
Additions				1,310,639
Amortization				(3,232,626)	$ (4,005,265)
Deferred finance fees, end				8,693,950
2015 Facility
Long-Term Debt
Original loan amount							$ 758,000,000
Repayment of debt	$ 47,200,000
Debt obligations
Total debt obligations				312,094,494		385,011,186
Commercial Financing
Debt obligations
Total debt obligations				134,396,466		155,205,698
KEXIM Direct Financing
Debt obligations
Total debt obligations				68,911,186		89,474,512
KEXIM Guaranteed
Debt obligations
Total debt obligations				72,958,655		93,997,081
K-sure Insured
Debt obligations
Total debt obligations				35,828,187		46,333,895
Japanese Financings
Debt obligations
Total debt obligations				189,467,279		217,076,795
Corsair Japanese Financing
Debt obligations
Total debt obligations				38,458,334		40,895,833
Concorde Japanese Financing
Debt obligations
Total debt obligations				43,076,923		45,500,000
Corvette Japanese Financing
Debt obligations
Total debt obligations				43,615,385		46,038,462
CMNL Japanese Financing
Debt obligations
Total debt obligations						16,706,845
CNML Japanese Financing
Debt obligations
Total debt obligations				17,801,637		18,855,655
Presented as follows:
Current portion of long-term debt				16,400,000
Cresques Japanese Financing
Debt obligations
Total debt obligations				46,515,000		$ 49,080,000
BALCAP Facility
Long-Term Debt
Original loan amount	$ 83,400,000
Security leverage ratio	125.00%
Stated rate (as a percent)	3.78%
Loan term period	5 years
Proceeds from long-term debt borrowings	$ 34,900,000
Principal payment frequency	monthly
Periodic principal payment amount	$ 900,000
Balloon payment amount	$ 44,100,000
Debt obligations
Total debt obligations				$ 83,400,000
CMNL \| CJNP Japanese Financing
Long-Term Debt
Vessel purchase price		$ 15,800,000
Deposit retained by buyer used for purchase payment		$ 25,200,000
CNML \| CNML Japanese Financing
Long-Term Debt
Vessel purchase price			$ 17,800,000
Deposit retained by buyer used for purchase payment			$ 27,900,000