Net Loss Per Share (Tables)

6 Months Ended

Jun. 30, 2021

Earnings Per Share [Abstract]

Computation of basic and diluted net loss per share

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

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Net loss	$	(7,283)	$	(11,242)	$	(15,701)	$	(21,911)
Loss from continuing operations	$	(7,115)	$	(11,374)	$	(15,533)	$	(21,764)
(Loss) income from discontinued operations, net of taxes	$	(168)	$	132	$	(168)	$	(147)
Weighted-average common shares outstanding, basic and diluted	98,810		107,535		98,696		107,279
(Loss) income per share, basic and diluted
Continuing operations	$	(0.07)	$	(0.11)	$	(0.16)	$	(0.20)
Discontinued operations	$	0.00	$	0.00	$	0.00	$	0.00

Anti-dilutive shares excluded from the calculation of diluted net loss per share

The following table presents the number of anti-dilutive shares excluded from the calculation of diluted loss per share at June 30, 2021 and 2020 (in thousands):

	June 30,
	2021	2020
Options to purchase common stock	9,312	10,740
Common stock warrants	510	1,459
Non-vested restricted stock unit awards	8,573	8,606
Total shares excluded from net loss per share	18,395	20,805