Summary of Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2019

Accounting Policies [Abstract]

Potentially Dilutive Shares Excluded From Calculation of Diluted Net Loss Per Share

The following potentially dilutive shares were excluded from the calculation of diluted net loss per share because their effect would have been anti-dilutive for the periods presented:

	Three Months Ended March 31,
	2019		2018
Stock options		1,485,981		1,528,907
Restricted stock units		77,532		64,192