Note C - Finance Receivables, Net - Finance Receivable Summarized by Fiscal Year of Origination (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Oct. 31, 2024	Oct. 31, 2023	Oct. 31, 2024	Oct. 31, 2023	Apr. 30, 2024	Oct. 31, 2022
Current year, principal balance	$ 471,360	$ 533,024	$ 471,360	$ 533,024
Year two, principal balance	603,350	625,856	603,350	625,856
Year three, principal balance	290,958	250,507	290,958	250,507
Year four, principal balance	94,872	49,783	94,872	49,783
Year five, principal balance	11,918	3,278	11,918	3,278
Prior, principal balance	1,336	950	1,336	950
Finance Receivable, Principal Balance	$ 1,473,794	$ 1,463,398	$ 1,473,794	$ 1,463,398	$ 1,435,388
Principal balance, percentage	100.00%	100.00%	100.00%	100.00%	100.00%	100.00%
Charge-offs, total	$ 24,742	$ 36,228
Charge-offs, total	137,604	153,765
Charge-offs, total	66,999	54,307
Charge-offs, total	18,381	10,301
Charge-offs, total	1,993	791
Charge-offs, total	338	293
Charge-offs, total	250,057	255,685	$ 250,057	$ 255,685
Customer Score 1-2 [Member]
Current year, principal balance	30,975	26,044	30,975	26,044
Year two, principal balance	27,649	23,346	27,649	23,346
Year three, principal balance	8,152	7,271	8,152	7,271
Year four, principal balance	1,805	1,127	1,805	1,127
Year five, principal balance	133	150	133	150
Prior, principal balance	54	13	54	13
Finance Receivable, Principal Balance	$ 68,768	57,951	$ 68,768	57,951
Principal balance, percentage	4.70%		4.70%			4.00%
Customer Score 3-4 [Member]
Current year, principal balance	$ 171,128	189,850	$ 171,128	189,850
Year two, principal balance	206,403	190,995	206,403	190,995
Year three, principal balance	75,913	64,672	75,913	64,672
Year four, principal balance	19,301	11,479	19,301	11,479
Year five, principal balance	1,836	643	1,836	643
Prior, principal balance	313	246	313	246
Finance Receivable, Principal Balance	$ 474,894	457,885	$ 474,894	457,885
Principal balance, percentage	32.20%		32.20%			31.30%
Customer Score 5-6 [Member]
Current year, principal balance	$ 269,257	317,130	$ 269,257	317,130
Year two, principal balance	369,298	411,515	369,298	411,515
Year three, principal balance	206,893	178,564	206,893	178,564
Year four, principal balance	73,766	37,177	73,766	37,177
Year five, principal balance	9,949	2,485	9,949	2,485
Prior, principal balance	969	691	969	691
Finance Receivable, Principal Balance	$ 930,132	$ 947,562	$ 930,132	$ 947,562
Principal balance, percentage	63.10%		63.10%			64.70%