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Note F - Debt Facilities (Tables)
9 Months Ended
Jan. 31, 2020
Notes Tables  
Schedule of Long-term Debt Instruments [Table Text Block]
(In thousands)   January 31, 2020   April 30, 2019
         
Revolving lines of credit   $
184,464
    $
152,440
 
Notes payable    
109
     
194
 
Finance lease    
550
     
839
 
Debt issuance costs    
(823
)    
(555
)
                 
Debt facilities   $
184,300
    $
152,918