Quarterly report pursuant to Section 13 or 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
Oct. 31, 2017
Jan. 31, 2017
Inventory Disclosure [Abstract]    
Components and assemblies $ 506 $ 500
Finished products 344 270
Total inventories, net $ 850 $ 770