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Note J - Supplemental Cash Flow Information (Details) - Supplemental Cash Flow Disclosures (USD $)
In Thousands, unless otherwise specified
9 Months Ended
Jan. 31, 2014
Jan. 31, 2013
Supplemental Cash Flow Disclosures [Abstract]    
Interest paid $ 2,282 $ 2,081
Income taxes paid, net 7,578 12,407
Inventory acquired in repossession and payment protection plan claims $ 32,842 $ 27,909