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Note J - Supplemental Cash Flow Information (Detail) - Supplemental cash flow disclosures: (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Oct. 31, 2012	Oct. 31, 2011
Supplemental disclosures:
Interest paid	$ 1,323	$ 940
Income taxes paid, net	8,530	5,978
Non-cash transactions:
Inventory acquired in repossession and payment protection plan claims	$ 19,100	$ 17,235

The fair value of assets acquired in noncash investing or financing activities.

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- Definition

The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes.

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