Note C - Finance Receivables, Net - Financing Receivables Analysis (Details) - USD ($) $ in Thousands	3 Months Ended
	Jul. 31, 2024	Jul. 31, 2023
Average total collected per active customer per month	$ 562	$ 535
Portfolio weighted average contract term, including modifications (in months) (Month)	48 months 3 days	46 months 27 days
Principal collected as a percent of average finance receivables	7.80%	7.80%
Average down-payment percentage	5.20%	5.00%
Average originating contract term (in months) (Month)	44 months 9 days	44 months 21 days