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NOTES PAYABLE: (Tables)
 12 Months Ended
Apr. 30, 2016
Debt Disclosure [Abstract]  
Schedule of Debt [Table Text Block]
Notes payable consist of:
 
 
 
April 30,
 
 
 
2016
 
2015
 
 
 
(in thousands)
 
Credit facilities:
 
 
 
 
 
 
 
Real estate operations – due to related party
 
$
12,384
 
$
14,003
 
Real estate operations - other
 
 
555
 
 
-
 
Other notes payable
 
 
-
 
 
4,087
 
 
 
$
12,939
 
$
18,090