Note M - Other Comprehensive Income - Summary of Other Comprehensive Loss (Details) - USD ($)	3 Months Ended	6 Months Ended
Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Cash flow hedges, before tax	$ 5,573,820		$ (12,481,740)
Cash flow hedges, tax benefit	(1,346,635)		3,015,588
Cash flow hedges, net of tax	4,227,185	$ 0	(9,466,152)	$ 0
Other comprehensive income (loss)	5,573,820		(12,481,740)
Other comprehensive income (loss)	(1,346,635)		3,015,588
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent, Total	$ 4,227,185	$ 0	$ (9,466,152)	$ 0

Amount before tax of other comprehensive income (loss) attributable to parent entity.

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