Net Loss Per Share Attributable to Common Stockholders (Tables)

12 Months Ended

Dec. 31, 2020

Net Loss Per Share Attributable to Common Stockholders

Schedule of calculation of basic and diluted net income (loss) per common share

	Years Ended December 31,
(In thousands, except share and per share data)	2020		2019
Net loss attributable to common shareholders (basic and diluted)		(38,648)	$	(44,726)
Shares used to compute net loss per common share, basic and diluted		38,642,650		4,965,337
Net loss per share attributable to common shareholders, basic and diluted	$	(1.00)	$	(9.01)

Schedule of common stock equivalents excluded from the calculation of diluted net loss per common share

	December 31,
	2020	2019
Options issued and outstanding	4,456,748	3,902,675
Inducement options issued and outstanding	114,892	74
Restricted stock units issued and outstanding	5,613	5,613
Warrants issued and outstanding	7,205,454	19,421,892
Series A convertible preferred stock	—	473,565
Series B convertible preferred stock	—	985,500
Series B-2 convertible preferred stock	—	1,931,350
Total	11,782,707	26,720,669