Net Loss Per Common Share

3 Months Ended

Mar. 31, 2019

Earnings Per Share [Abstract]

Net Loss Per Common Share

11. Net Loss per Common Share

Since the Company was in a loss position for all periods presented, diluted net loss per common share is the same as basic net loss per common share for all periods presented as the inclusion of all potential common shares outstanding would have been anti-dilutive. Potentially dilutive securities that were not included in the diluted per common share calculations because they would be anti-dilutive were as follows:

	Three Months Ended March 31,
	2019		2018
Options to purchase common stock		11,790,706		10,207,557
Restricted stock units		1,361,902		1,181,323
Common stock warrants		61,861		63,661
Total		13,214,469		11,452,541