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INVENTORIES, NET (Tables)
12 Months Ended
Jan. 31, 2014
Inventory Disclosure [Abstract]  
Schedule of Inventory, Current [Table Text Block]
Inventories consist of the following at January 31:
 
 
 
2014
 
2013
 
 
 
 
 
 
 
 
 
Raw materials
 
$
16,348,861
 
$
21,096,015
 
Work-in-process
 
 
1,292,741
 
 
1,812,788
 
Finished goods
 
 
22,202,707
 
 
16,361,872
 
 
 
$
39,844,309
 
$
39,270,675