Computation of Net Loss per Share of Common Stock (Tables)

12 Months Ended

Dec. 31, 2020

Earnings Per Share, Basic [Abstract]

Schedule of Earnings Per Share, Basic and Diluted

The following table identifies the components of net loss per basic and diluted share (in thousands, except for per share data):

	Year Ended December 31,
	2020		2019		2018
Net loss per share – basic
Net loss	$	(9,200)	$	(6,443)	$	(3,617)
Weighted average shares outstanding – basic	13,612		10,395		9,499
Net loss per share – basic	$	(0.68)	$	(0.62)	$	(0.38)
Net loss per share – diluted
Loss attributable to common shareholders:
Net loss	$	(9,200)	$	(6,443)	$	(3,617)
Numerator effect of dilutive securities
Warrants	(294)		(105)		(161)
Loss attributable to common shareholders	$	(9,494)	$	(6,548)	$	(3,778)
Weighted averages shares outstanding – diluted:
Weighted average shares outstanding – basic	13,612		10,395		9,499
Denominator effect of dilutive securities
Warrants	15		19		107
Weighted average shares outstanding – diluted	13,627		10,414		9,606
Net loss per share – diluted	$	(0.70)	$	(0.63)	$	(0.39)

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share

Stock options, warrants and restricted stock units to acquire common shares excluded from the computation of diluted weighted-average common shares as their effect is anti-dilutive were as follows (in thousands):

	Year Ended December 31,
	2020	2019	2018
Stock options	1,150	1,299	1,273
Warrants	414	1,025	348
Restricted stock units	284	124	150
Total anti-dilutive	1,848	2,448	1,771