Net Loss per Share (Tables)

12 Months Ended

Dec. 31, 2018

Earnings Per Share [Abstract]

Schedule of Antidilutive Securities Excluded from Computation of Net Loss per Share

For purposes of the diluted loss per share calculation, outstanding stock options, unvested RSAs and unvested RSUs are considered to be potentially dilutive securities, however the following amounts were excluded from the calculation of diluted net loss per share because their effect would be anti-dilutive (in thousands):

	Year Ended December 31,
	2018	2017
Outstanding stock options	5,023	4,868
Unvested RSAs	7	16
Unvested RSUs	371	—
Total	5,401	4,884