Quarterly report pursuant to Section 13 or 15(d)

Net Loss Per Share - Schedule of Earnings Per Share, Basic and Diluted (Detail)

v3.7.0.1
Net Loss Per Share - Schedule of Earnings Per Share, Basic and Diluted (Detail) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
3 Months Ended
Apr. 30, 2017
Apr. 30, 2016
Earnings Per Share [Abstract]    
Net loss $ (5,371) $ (8,907)
Weighted average shares used in computing net loss per share - basic and diluted 35,309 34,354
Net loss per share:    
Basic $ (0.15) $ (0.26)
Diluted $ (0.15) $ (0.26)