Net Loss Per Share

12 Months Ended

Dec. 31, 2019

Earnings Per Share [Abstract]

Net Loss Per Share

4. Net Loss Per Share

Because the Company has reported net loss attributable to common stockholders for the years ended December 31, 2019 and 2018, basic and diluted net loss per share attributable to common stockholders are the same for both years. All preferred stock, unvested restricted stock, common stock warrants, stock options, and other potentially dilutive shares have been excluded from the computation of diluted weighted-average shares outstanding because such securities would have an antidilutive impact.

Potential common shares issuable upon conversion, unvested restricted stock, common stock warrants, stock options, and other potentially dilutive shares are excluded from the computation of diluted weighted-average shares outstanding are as follows:

	As of December 31,
	2019		2018
Common stock warrants		10,384,706		7,344,297
Common stock options		973,172		353,274
Unvested restricted stock		235,666		323,404
Other dilutive securities		28,070		—