Quarterly report pursuant to Section 13 or 15(d)

Computation of Basic and Diluted Net Loss Per Share (Detail)

v3.8.0.1
Computation of Basic and Diluted Net Loss Per Share (Detail) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Dec. 31, 2017
Numerator:      
Net loss $ (2,190) $ (4,955) $ (53,907)
Denominator:      
Weighted-average common shares (in thousands) - diluted 21,822 20,599  
Basic and Diluted net loss per share $ (0.10) $ (0.24)