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Note D - Property and Equipment (Tables)
3 Months Ended
Jul. 31, 2018
Notes Tables  
Property, Plant and Equipment [Table Text Block]
(In thousands)   July 31, 2018   April 30, 2018
         
Land   $
6,402
    $
6,402
 
Buildings and improvements    
11,594
     
11,569
 
Furniture, fixtures and equipment    
13,134
     
12,874
 
Leasehold improvements    
24,834
     
24,567
 
Construction in progress    
1,392
     
1,259
 
Less accumulated depreciation and amortization    
(29,062
)    
(28,077
)
                 
Total   $
28,294
    $
28,594