Annual report pursuant to Section 13 and 15(d)

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

v3.6.0.2
Net Loss per Share - Schedule of Basic and Diluted Net Loss Per Share (Detail) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Income Statement [Abstract]    
Net loss $ (3,477) $ (51,858)
Weighted-average common shares used in computing net loss per share, basic and diluted 13,438,248 13,621,255
Net loss per share, basic and diluted $ (0.26) $ (3.81)