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FAIR VALUE MEASUREMENTS: (Tables)
 12 Months Ended
Apr. 30, 2015
Fair Value Disclosures [Abstract]  
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Table Text Block]
The following presents assets by balance sheet caption and by the level within the fair value hierarchy (as described above) as of April 30, 2015 and 2014, for which a non-recurring change in fair value has been recorded during the years then ended (in thousands):
 
 
 
Level 1
 
Level 2
 
Level 3
 
Impairment
Loss
Recorded
 
2015:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Real estate inventory
 
$
-
 
$
-
 
$
2,048
 
$
1,504
 
Investment assets
 
$
-
 
$
-
 
$
1,439
 
$
305
 
Property, plant and equipment
 
$
-
 
$
-
 
$
-
 
$
771
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
2014:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Real estate inventory
 
$
-
 
$
-
 
$
1,285
 
$
406
 
Investment assets
 
$
-
 
$
-
 
$
787
 
$
280