Note C - Finance Receivables, Net - Financing Receivables Analysis (Details) - USD ($) $ in Thousands	3 Months Ended
	Jul. 31, 2022	Jul. 31, 2021
Average total collected per active customer per month	$ 516	$ 487
Principal collected as a percent of average finance receivables	9.10%	11.50%
Average down-payment percentage	5.40%	6.90%
Average originating contract term (in months) (Month)	42 months 24 days	38 months 24 days
Portfolio weighted average contract term, including modifications (in months) (Month)	44 months	38 months 21 days