XML 40 R43.htm IDEA: XBRL DOCUMENT v2.4.0.8
INVENTORIES, NET (Details) (USD $)
Jan. 31, 2014
Jan. 31, 2013
Inventory [Line Items]    
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
Inventory, Net, Total $ 39,844,309 $ 39,270,675