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Note K - Supplemental Cash Flow Information (Details) - Supplemental Cash Flow Disclosures (USD $)
In Thousands, unless otherwise specified
6 Months Ended
Oct. 31, 2014
Oct. 31, 2013
Supplemental Cash Flow Disclosures [Abstract]    
Interest paid $ 1,376 $ 1,525
Income taxes paid, net 5,238 5,108
Inventory acquired in repossession and payment protection plan claims $ 21,272 $ 21,765