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Note G - Fair Value Measurements (Tables)
12 Months Ended
Apr. 30, 2013
Fair Value Disclosures [Abstract]  
Fair Value, by Balance Sheet Grouping [Table Text Block]
   
April 30, 2013
   
April 30, 2012
 
(In thousands)
 
Carrying
Value
   
Fair
Value
   
Carrying
Value
   
Fair
Value
 
                         
Cash
  $ 272     $ 272     $ 276     $ 276  
Finance receivables, net
    288,049       227,121       251,103       198,084  
Accounts payable
    8,832       8,832       7,352       7,352  
Revolving credit facilities
    99,563       99,563       77,900       77,900