Note C - Finance Receivables, Net - Financing Receivables Analysis (Details) - USD ($) $ in Thousands	12 Months Ended
	Apr. 30, 2022	Apr. 30, 2021
Average total collected per active customer per month	$ 513	$ 478
Principal collected as a percent of average finance receivables	43.50%	53.20%
Average down-payment percentage	6.40%	7.10%
Average originating contract term (in months) (Month)	40 months 6 days	34 months 18 days
Portfolio weighted average contract term, including modifications (in months) (Year)	42 years 10 months 24 days	37 years 3 months 18 days