Note C - Finance Receivables, Net - Financing Receivables Analysis (Details) - USD ($) $ in Thousands	3 Months Ended
	Jul. 31, 2023	Jul. 31, 2022
Average total collected per active customer per month	$ 535	$ 516
Portfolio weighted average contract term, including modifications (in months) (Month)	46 months 27 days	44 months
Principal collected as a percent of average finance receivables	7.80%	9.10%
Average down-payment percentage	5.00%	5.40%
Average originating contract term (in months) (Month)	44 months 21 days	42 months 24 days