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Note F - Debt Facilities (Tables)
12 Months Ended
Apr. 30, 2018
Notes Tables  
Schedule of Long-term Debt Instruments [Table Text Block]
(In thousands)   2018   2017
         
Revolving lines of credit   $
151,380
    $
118,124
 
Notes payable    
305
     
413
 
Capital lease    
1,117
     
-
 
Debt issuance costs    
(435
)    
(593
)
                 
Debt facilities   $
152,367
    $
117,944