XML 30 R43.htm IDEA: XBRL DOCUMENT v3.3.0.814
Inventories (Details) - USD ($)
$ in Thousands
Oct. 31, 2015
Jan. 31, 2015
Inventory Disclosure [Abstract]    
Raw materials $ 2,492 $ 4,548
Work in progress 55 77
Finished goods 370,556 314,453
Inventories 373,103 319,078
Allowance to write down inventories to the lower of cost or market $ 19,500 $ 19,700