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Note C - Finance Receivables, Net - Financing Receivables Analysis (Details) - USD ($)
$ in Thousands
 6 Months Ended 9 Months Ended
Oct. 31, 2023
Oct. 31, 2022
Jan. 31, 2024
Jan. 31, 2023
Average total collected per active customer per month     $ 536 $ 516
Portfolio weighted average contract term, including modifications (in months) (Month) 47 months 18 days 45 months 12 days    
Principal collected as a percent of average finance receivables     22.70% 25.40%
Average down-payment percentage     5.00% 5.40%
Average originating contract term (in months) (Month)     44 months 42 months 15 days