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RECEIVABLES (Tables)
 3 Months Ended
Jul. 31, 2018
Receivables [Abstract]  
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]
Receivables, net consist of:
 
 
 
July 31,
2018
 
 
April 30,
2018
 
 
 
(in thousands)
 
Fulfillment services
 
$
6,196
 
 
$
6,189
 
Real estate operations
 
 
26
 
 
 
10
 
Corporate operations
 
 
21
 
 
 
16
 
 
 
 
6,243
 
 
 
6,215
 
Less allowance for doubtful accounts
 
 
(377
)
 
 
(314
)
 
 
$
5,866
 
 
$
5,901