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Note K - Supplemental Cash Flow Information (Tables)
6 Months Ended
Oct. 31, 2017
Notes Tables  
Schedule of Cash Flow, Supplemental Disclosures [Table Text Block]
    Six Months Ended
October 31,
(in thousands)   2017   2016
Supplemental disclosures:                
Interest paid   $
2,496
    $
1,980
 
Income taxes paid, net    
6,080
     
3,793
 
Non-cash transactions:                
Inventory acquired in repossession and payment protection plan claims    
20,096
     
19,651
 
Loss accrued on disposal of property and equipment    
-
     
400