XML 41 R10.htm IDEA: XBRL DOCUMENT v2.4.0.6
INVENTORIES, NET
12 Months Ended
Jan. 31, 2012
Inventory Disclosure [Abstract]  
Inventory Disclosure [Text Block]

2. INVENTORIES, NET

 

Inventories consist of the following at January 31:

 

    2012     2011  
             
Raw materials   $ 21,213,423     $ 17,830,675  
Work-in-process     1,790,510       2,796,825  
Finished goods     22,664,422       24,667,795  
    $ 45,668,355     $ 45,295,295