Annual report pursuant to Section 13 and 15(d)

Consolidated Balance Sheet Detail - Schedule of Inventories (Detail)

v2.4.1.9
Consolidated Balance Sheet Detail - Schedule of Inventories (Detail) (USD $)
In Thousands, unless otherwise specified
Jan. 31, 2015
Jan. 31, 2014
Inventory Disclosure [Abstract]    
Components and assemblies $ 1,487us-gaap_InventoryRawMaterialsNetOfReserves $ 2,201us-gaap_InventoryRawMaterialsNetOfReserves
Finished products 1,377us-gaap_InventoryFinishedGoodsNetOfReserves 4,431us-gaap_InventoryFinishedGoodsNetOfReserves
Total inventories $ 2,864us-gaap_InventoryNet $ 6,632us-gaap_InventoryNet