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Note B - Summary of Significant Accounting Policies (Tables)
12 Months Ended
Apr. 30, 2019
Notes Tables  
Property, Plant, and Equipment Useful Life [Table Text Block]
Furniture, fixtures and equipment (years)
3
to
7
Leasehold improvements
(years)
5
to
15
Buildings and improvements
(years)
18
to
39
Revenue from External Customers by Products and Services [Table Text Block]
    Years Ended April 30,
(In thousands)   2019   2018   2017
             
Sales – used autos   $
506,184
    $
462,956
    $
448,183
 
Wholesales – third party    
27,376
     
25,638
     
23,554
 
Service contract sales    
30,243
     
28,482
     
28,668
 
Payment protection plan revenue    
22,705
     
20,452
     
19,744
 
                         
Total   $
586,508
    $
537,528
    $
520,149