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Note B - Summary of Significant Accounting Policies - Sales (Details) - USD ($) $ in Thousands | 3 Months Ended
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Jul. 31, 2024 | Jul. 31, 2023
Sales | $ 287,248 | $ 310,337
Sales Used Autos [Member] |  |
Sales | 251,305 | 273,468
Wholesales Third Party [Member] |  |
Sales | 9,696 | 11,205
Service Contract Sales [Member] |  |
Sales | 17,072 | 16,347
Payment Protection Plan Revenue [Member] |  |
Sales | $ 9,175 | $ 9,317

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