Note M - Other Comprehensive Income (Loss) - Summary of Other Comprehensive Loss (Details) - USD ($)	3 Months Ended	6 Months Ended
Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2021
Cash flow hedges, before tax	$ 2,080,740	$ 5,573,820	$ 11,540,280		$ (12,481,740)
Cash flow hedges, tax	(502,707)	(1,346,635)	(2,788,130)		3,015,588
Cash flow hedges	1,578,033	4,227,185	8,752,150		(9,466,152)
Other comprehensive income (loss), before tax	2,080,740	5,573,820	11,540,280		(12,481,740)
Other comprehensive income (loss), tax	(502,707)	(1,346,635)	(2,788,130)		3,015,588
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent, Total	$ 1,578,033	$ 4,227,185	$ 8,752,150	$ (9,466,152)	$ (9,466,152)

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

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