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Note G - Fair Value Measurements (Tables)
 9 Months Ended
Jan. 31, 2017
Notes Tables  
Fair Value, by Balance Sheet Grouping [Table Text Block]
    January 31, 2017   April 30, 2016
(In thousands)   Carrying
Value		   Fair
Value		   Carrying
Value		   Fair
Value
                 
Cash   $
254
     $
254
     $
602
     $
602
  
Finance receivables, net    
363,536
      
292,343
      
334,793
      
268,926
  
Accounts payable    
10,544
      
10,544
      
12,313
      
12,313
  
Revolving credit facilities and notes payable    
118,785
      
118,785
      
107,902
      
107,902