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Note B - Summary of Significant Accounting Policies - Sales (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Oct. 31, 2018 | Oct. 31, 2017 | Oct. 31, 2018 | Oct. 31, 2017
Sales | $ 146,411 | $ 130,427 | $ 290,512 | $ 258,701
Sales Used Autos [Member] |  |  |  |
Sales | 126,286 | 111,922 | 251,510 | 223,035
Wholesales Third Party [Member] |  |  |  |
Sales | 6,693 | 6,115 | 12,745 | 11,452
Service Contract Sales [Member] |  |  |  |
Sales | 7,727 | 7,212 | 15,055 | 14,116
Payment Protection Plan Revenue [Member] |  |  |  |
Sales | $ 5,705 | $ 5,178 | $ 11,202 | $ 10,098

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- Definition 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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130543-203045 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130539-203045 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130545-203045 + Details
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