Common Stock

6 Months Ended

Jun. 30, 2020

Net loss per share

Basic net loss per share is computed by dividing the net loss by the weighted-average number of shares of common stock outstanding during the period. Diluted net loss per share is computed by giving effect to all potential shares of common stock, preferred stock and outstanding stock options and warrants, to the extent dilutive. Basic and diluted net loss per share was the same for each period presented below as the inclusion of any such potential shares of common stock would have been anti-dilutive.

Basic and diluted net loss per share (in thousands, except per share amounts) are as follows:


	Three Months Ended June 30,						Six Months Ended June 30,
	2020		2019		2020		2019
Net loss	$	(6,213)	$	(5,490)	$	(13,808)	$	(8,411)
Weighted-average shares of common stock outstanding	16,994		16,315		16,844		16,398
Net loss per share - basic and diluted	$	(0.37)	$	(0.34)	$	(0.82)	$	(0.51)

The following common equivalent shares as of June 30, 2020 and 2019, issuable upon exercise of stock options and warrants, have been excluded from the diluted earnings per share calculation as their effect is anti-dilutive:


	June 30,
	2020	2019
Warrants to purchase common stock	1,539,926	1,397,720
Options to purchase common stock	3,834,777	4,206,731
Total	5,374,703	5,604,451