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PROPERTY, PLANT AND EQUIPMENT (Tables)
3 Months Ended
Jul. 31, 2016
Property, Plant and Equipment Disclosure [Abstract]  
Property, Plant and Equipment [Table Text Block]
Property, plant and equipment, net consist of the following (in thousands):
 
 
July 31,
 
April 30,
 
 
 
2016
 
2016
 
 
 
 
 
 
 
 
 
Land, buildings and improvements
 
$
15,868
 
$
15,864
 
Furniture and equipment
 
 
19,189
 
 
19,140
 
 
 
 
35,057
 
 
35,004
 
Less accumulated depreciation
 
 
(23,380)
 
 
(23,007)
 
 
 
$
11,677
 
$
11,997