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Note B - Summary of Significant Accounting Policies (Details) - Sales (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Apr. 30, 2013	Apr. 30, 2012	Apr. 30, 2011
Revenue from External Customer [Line Items]
Sales	$ 415,740	$ 386,857	$ 341,859
Sales - Used Autos [Member]
Revenue from External Customer [Line Items]
Sales	368,674	340,368	300,107
Wholesales - Third Party [Member]
Revenue from External Customer [Line Items]
Sales	19,718	21,910	19,601
Service Contract Sales [Member]
Revenue from External Customer [Line Items]
Sales	14,594	13,451	12,042
Payment Protection Plan Revenue [Member]
Revenue from External Customer [Line Items]
Sales	$ 12,754	$ 11,128	$ 10,109

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- Definition

Aggregate revenue during the period from the sale of goods in the normal course of business, after deducting returns, allowances and discounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1(a))

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 1

-Article 5

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