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Note B - Significant Accounting Policies (Details) - Sales (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Oct. 31, 2013	Oct. 31, 2012	Oct. 31, 2013	Oct. 31, 2012
Revenue from External Customer [Line Items]
Sales	$ 107,765	$ 98,194	$ 216,914	$ 196,491
Sales - Used Autos [Member]
Revenue from External Customer [Line Items]
Sales	95,744	86,688	193,050	173,573
Wholesales - Third Party [Member]
Revenue from External Customer [Line Items]
Sales	4,760	4,818	9,223	9,653
Service Contract Sales [Member]
Revenue from External Customer [Line Items]
Sales	3,714	3,546	7,628	7,069
Payment Protection Plan Revenue [Member]
Revenue from External Customer [Line Items]
Sales	$ 3,547	$ 3,142	$ 7,013	$ 6,196

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X

- 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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