Financial Instruments and Fair Value Disclosures (Carrying and FV) (Details) - USD ($)	Jun. 30, 2022	Mar. 31, 2022
Fair value
Carrying Value	$ 657,036,187	$ 662,762,958
Corsair Japanese Financing
Fair value
Carrying Value	36,833,334	37,645,833
Corsair Japanese Financing | Level 2
Fair value
Fair Value	35,843,886	36,904,683
Concorde Japanese Financing
Fair value
Carrying Value	41,461,538	42,269,231
Concorde Japanese Financing | Level 2
Fair value
Fair Value	40,238,243	41,352,417
Corvette Japanese Financing
Fair value
Carrying Value	42,000,000	42,807,692
Corvette Japanese Financing | Level 2
Fair value
Fair Value	40,761,723	41,862,894
Cratis Japanese Financing
Fair value
Carrying Value	48,640,000	49,660,000
Cratis Japanese Financing | Level 2
Fair value
Fair Value	45,456,275	46,716,277
Copernicus Japanese Financing
Fair value
Carrying Value	48,640,000	49,660,000
Copernicus Japanese Financing | Level 2
Fair value
Fair Value	45,456,275	46,716,277
Chaparral Japanese Financing
Fair value
Carrying Value	64,093,936	64,662,242
Chaparral Japanese Financing | Level 2
Fair value
Fair Value	63,239,553	64,321,963
Caravelle Japanese Financing
Fair value
Carrying Value	48,800,000	49,700,000
Caravelle Japanese Financing | Level 2
Fair value
Fair Value	45,593,976	46,792,400
BALCAP Facility
Fair value
Carrying Value	79,731,035	81,574,172
BALCAP Facility | Level 2
Fair value
Fair Value	$ 75,083,530	$ 77,063,912