Quarterly report pursuant to Section 13 or 15(d)

Inventories - Schedule of Inventories (Detail)

v3.4.0.3
Inventories - Schedule of Inventories (Detail) - USD ($)
$ in Thousands
Apr. 30, 2016
Jan. 31, 2016
Inventory Disclosure [Abstract]    
Components and assemblies $ 1,197 $ 1,223
Finished products 551 459
Total inventory $ 1,748 $ 1,682