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OTHER ASSETS (Tables)
9 Months Ended
Jan. 31, 2017
Disclosure Text Block Supplement [Abstract]  
Schedule of Other Assets [Table Text Block]
Other assets consist of the following (in thousands):
 
 
January 31,
 
April 30,
 
 
 
2017
 
2016
 
 
 
 
 
 
 
 
 
Prepaid expenses
 
$
1,953
 
$
2,358
 
Deferred order entry costs
 
 
603
 
 
845
 
Other
 
 
257
 
 
275
 
 
 
$
2,813
 
$
3,478