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INVESTMENT ASSETS (Tables)
 3 Months Ended
Jul. 31, 2016
Investment Assets [Abstract]  
Schedule Of Investment Assets [Table Text Block]
Investment assets, net consist of the following (in thousands):
 
 
 
July 31,
2016
 
April 30,
2016
 
 
 
 
 
 
 
 
 
Land held for long-term investment
 
$
9,716
 
$
9,717
 
Other
 
 
-
 
 
609
 
 
 
$
9,716
 
$
10,326