Note B - Summary of Significant Accounting Policies - Sales (Details) - USD ($) $ in Thousands	3 Months Ended
Jul. 31, 2023	Jul. 31, 2022
Sales	$ 311,569	$ 294,476
Sales Used Autos [Member]
Sales	273,468	259,051
Wholesales Third Party [Member]
Sales	12,437	13,820
Service Contract Sales [Member]
Sales	16,347	13,186
Payment Protection Plan Revenue [Member]
Sales	$ 9,317	$ 8,419

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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+ Details