Financial Instruments and Fair Value Disclosures - Carrying Value and Fair Value of Long-term Debt (Details) - USD ($)	Dec. 31, 2025	Mar. 31, 2025
Financial Instruments and Fair Value Disclosures
Carrying Value	$ 516,455,744	$ 557,418,442
Japanese Financings
Financial Instruments and Fair Value Disclosures
Carrying Value	294,440,796	314,152,330
Corsair Japanese Financing
Financial Instruments and Fair Value Disclosures
Carrying Value	25,458,333	27,895,834
Corsair Japanese Financing \| Level 2
Financial Instruments and Fair Value Disclosures
Fair Value	25,341,265	27,449,194
Cresques Japanese Financing
Financial Instruments and Fair Value Disclosures
Carrying Value	22,513,900	23,840,367
Cresques Japanese Financing \| Level 2
Financial Instruments and Fair Value Disclosures
Fair Value	23,873,098	25,079,649
Cratis Japanese Financing
Financial Instruments and Fair Value Disclosures
Carrying Value	34,360,000	37,420,000
Cratis Japanese Financing \| Level 2
Financial Instruments and Fair Value Disclosures
Fair Value	33,269,985	35,683,595
Copernicus Japanese Financing
Financial Instruments and Fair Value Disclosures
Carrying Value	34,360,000	37,420,000
Copernicus Japanese Financing \| Level 2
Financial Instruments and Fair Value Disclosures
Fair Value	33,269,985	35,683,595
Chaparral Japanese Financing
Financial Instruments and Fair Value Disclosures
Carrying Value	55,288,563	57,316,129
Chaparral Japanese Financing \| Level 2
Financial Instruments and Fair Value Disclosures
Fair Value	55,522,758	56,960,711
Caravelle Japanese Financing
Financial Instruments and Fair Value Disclosures
Carrying Value	36,200,000	39,200,000
Caravelle Japanese Financing \| Level 2
Financial Instruments and Fair Value Disclosures
Fair Value	34,996,486	37,313,039
Cougar Japanese Financing
Financial Instruments and Fair Value Disclosures
Carrying Value	37,400,000	40,100,000
Cougar Japanese Financing \| Level 2
Financial Instruments and Fair Value Disclosures
Fair Value	40,325,460	41,274,707
Captain Markos Dual-Fuel Japanese Financing
Financial Instruments and Fair Value Disclosures
Carrying Value	48,860,000	50,960,000
Captain Markos Dual-Fuel Japanese Financing \| Level 2
Financial Instruments and Fair Value Disclosures
Fair Value	52,316,907	54,060,280
BALCAP Facility
Financial Instruments and Fair Value Disclosures
Carrying Value	52,014,948	58,266,112
BALCAP Facility \| Level 2
Financial Instruments and Fair Value Disclosures
Fair Value	$ 51,177,547	$ 56,498,815

DORIAN LPG LTD. 10-Q