Net Loss Per Share (Tables)

12 Months Ended

Dec. 31, 2020

Earnings Per Share [Abstract]

Schedule of Income (Loss) Per Share, Basic and Diluted

The following table sets forth the computation of the Company’s basic and diluted net loss per share (in thousands, except per share data):

	Year Ended December 31,
Numerator:	2020		2019
Net loss	$	(7,421)	$	(7,761)
Less: preferred stock dividends	17		27
Less: undeclared dividends	$	788	$	—
Net loss attributable to common stockholders	$	(8,226)	$	(7,788)
Denominator:
Weighted-average number of shares of common stock for basic net loss per share	5,547		5,108
Basic and diluted net loss per share	$	(1.48)	$	(1.52)

Schedule of Potential Shares of Common Stock Excluded from Diluted Weighted Average Shares

The following table represents the potential shares that were excluded from the computation of weighted-average number of shares of common stock in computing the diluted net loss per share for the periods presented because including them would have had an anti-dilutive effect:

	Year Ended December 31,
	2020	2019
Unvested restricted stock units	—	23,334
Outstanding stock options	107,500	215,345
Unvested restricted stock awards	627	627
Shares of common stock issuable upon conversion of Series A-2 preferred stock	18,161	10,978
Shares of common stock issuable upon conversion of Series C preferred stock	—	158,333
Shares of common stock issuable upon conversion of Series D preferred stock	17,020,100	17,349,010
Shares of common stock issuable upon conversion of Series E preferred stock	1,315,790	1,315,790
Warrants	1,146,500	72,394