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Note K - Supplemental Cash Flow Information - Supplemental Cash Flow Disclosures (Details) - USD ($)
$ in Thousands
6 Months Ended
Oct. 31, 2016
Oct. 31, 2015
Supplemental disclosures:    
Interest paid $ 1,980 $ 1,782
Income taxes paid, net 3,793 2,990
Non-cash transactions:    
Inventory acquired in repossession and payment protection plan claims 19,651 23,054
Loss accrued on disposal of property and equipment $ 400