Quarterly report pursuant to Section 13 or 15(d)

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

v3.7.0.1
Net Loss per Share - Schedule of Basic and Diluted Net Loss Per Share (Detail) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Income Statement [Abstract]    
Net loss $ (3,149) $ (6,605)
Weighted-average common shares used in computing net loss per share, basic and diluted 13,773,508 13,896,876
Net loss per share, basic and diluted $ (0.23) $ (.48)