Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies - Computation of Basic and Diluted Net Loss per Share (Detail)

v3.7.0.1
Summary of Significant Accounting Policies - Computation of Basic and Diluted Net Loss per Share (Detail) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Numerator:        
Net loss allocated to common stock-basic $ (8,929) $ (6,992) $ (14,280) $ (13,840)
Adjustments for revaluation of warrants 0 0 0 0
Net loss allocated to common stock-diluted $ (8,929) $ (6,992) $ (14,280) $ (13,840)
Denominator:        
Weighted average number of common stock shares outstanding-basic 28,752,451 23,447,003 27,687,110 23,447,003
Weighted average number of common stock shares outstanding-diluted 28,752,451 23,447,003 27,687,110 23,447,003
Net loss per share-basic: $ (0.31) $ (0.30) $ (0.52) $ (0.59)
Net loss per share-diluted: $ (0.31) $ (0.30) $ (0.52) $ (0.59)