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Inventories, net
3 Months Ended
Apr. 30, 2018
Inventory Disclosure [Abstract]  
Inventory Disclosure [Text Block]
4.
Inventories, net
Inventories, net consist of the following (in $000s): 
 
 
 
April 30, 2018
 
January 31, 2018
 
 
 
 
 
 
 
 
 
Raw materials
 
$
14,172
 
$
14,767
 
Work-in-process
 
 
2,235
 
 
2,357
 
Finished goods
 
 
28,004
 
 
25,795
 
 
 
$
44,411
 
$
42,919