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Note G - Fair Value Measurements (Tables)
9 Months Ended
Jan. 31, 2016
Notes Tables  
Fair Value, by Balance Sheet Grouping [Table Text Block]
    January 31, 2016   April 30, 2015
(In thousands)   Carrying
Value
  Fair
Value
  Carrying
Value
  Fair
Value
Cash   $ 590     $ 590     $ 790     $ 790  
Finance receivables, net     339,069       272,627       324,144       256,681  
Accounts payable     14,177       14,177       11,022       11,022  
Revolving credit facilities     122,490       122,490       102,221       102,221