Note M - Other Comprehensive Income - Summary of Other Comprehensive Income (Details) - USD ($)	3 Months Ended	9 Months Ended
Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Cash flow hedges, before tax	$ 3,364,460		$ 3,364,460
Cash flow hedges, tax	(706,537)		(706,537)
Cash flow hedges, net of tax	2,657,923		2,657,923
Other comprehensive income, before tax	3,364,460		3,364,460
Other comprehensive income, tax	(706,537)		(706,537)
Other comprehensive income, net of tax	$ 2,657,923		$ 2,657,923

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

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