Financial Instruments and Fair Value Disclosures (Carrying and FV) (Details) - USD ($)	Jun. 30, 2023	Mar. 31, 2023
Fair value
Carrying Value	$ 644,443,792	$ 657,367,346
Corsair Japanese Financing
Fair value
Carrying Value	33,583,334	34,395,834
Corsair Japanese Financing | Level 2
Fair value
Fair Value	32,074,408	33,051,190
Cratis Japanese Financing
Fair value
Carrying Value	44,560,000	45,580,000
Cratis Japanese Financing | Level 2
Fair value
Fair Value	41,037,360	42,185,289
Copernicus Japanese Financing
Fair value
Carrying Value	44,560,000	45,580,000
Copernicus Japanese Financing | Level 2
Fair value
Fair Value	41,037,360	42,185,289
Chaparral Japanese Financing
Fair value
Carrying Value	61,743,435	62,342,859
Chaparral Japanese Financing | Level 2
Fair value
Fair Value	59,736,224	60,701,217
Caravelle Japanese Financing
Fair value
Carrying Value	46,100,000	46,100,000
Caravelle Japanese Financing | Level 2
Fair value
Fair Value	41,663,467	42,707,169
Captain Markos Japanese Financing
Fair value
Carrying Value	55,160,000	55,790,000
Captain Markos Japanese Financing | Level 2
Fair value
Fair Value	57,202,971	55,790,000
BALCAP Facility
Fair value
Carrying Value	72,182,098	74,096,125
BALCAP Facility | Level 2
Fair value
Fair Value	66,959,223	69,032,167
Cresques Japanese Financing
Fair value
Carrying Value	26,935,458	27,377,615
Cresques Japanese Financing | Level 2
Fair value
Fair Value	$ 27,859,225	$ 27,377,615