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ACCOUNTS PAYABLE AND ACCRUED EXPENSES: (Tables)
 12 Months Ended
Apr. 30, 2015
Payables and Accruals [Abstract]  
Schedule of Accounts Payable and Accrued Liabilities [Table Text Block]
Accounts payable and accrued expenses consist of:
 
 
 
April 30,
 
 
 
2015
 
2014
 
 
 
(in thousands)
 
 
 
 
 
 
 
 
 
Fulfillment Services
 
$
8,910
 
$
10,692
 
Real estate operations and corporate
 
 
1,374
 
 
1,747
 
 
 
$
10,284
 
$
12,439