Common Stock

3 Months Ended

Mar. 31, 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 as the inclusion of all potential shares of common stock outstanding would have been anti-dilutive.

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


	Three months ended
	March 31, 2020		March 31, 2019
Net loss	$	(7,595)	$	(2,921)
Weighted-average shares of common stock outstanding	16,693		16,198
Net loss per share - basic and diluted	$	(0.45)	$	(0.18)

The following common equivalent shares as of March 31, 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:


	March 31, 2020	March 31, 2019
Warrants to purchase common stock	1,539,926	1,625,108
Options to purchase common stock	3,961,490	4,341,116
Total	5,501,416	5,966,224