Annual report pursuant to Section 13 and 15(d)

Consolidated Balance Sheet Detail - Schedule of Inventories (Detail)

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Consolidated Balance Sheet Detail - Schedule of Inventories (Detail) (USD $)
In Thousands, unless otherwise specified
Jan. 31, 2014
Jan. 31, 2013
Balance Sheet Related Disclosures [Abstract]    
Components and assemblies $ 2,201 $ 3,472
Finished products 4,431 3,900
Total inventories $ 6,632 $ 7,372