Net Loss per Common Share

3 Months Ended

Mar. 31, 2021

12. Net Loss per Common Share

Basic loss per share is computed by dividing net loss, adjusted for the accretion of preferred dividends, for the period by the weighted average number of common shares outstanding during the period. Diluted loss per share is computed by dividing net loss for the period by the weighted average number of common shares outstanding during the period plus the dilutive effect, if any, of outstanding stock options, RSUs, PSUs, and warrants using the treasury stock method. The following table sets forth the computation of basic net loss per share:

	Three Months Ended March 31,
Numerator:	2021			2020
Net loss	$	(1,465	)	$	(2,047	)
Accretion of Series B convertible preferred stock dividends		(284	)		(270	)
Numerator for basic net loss per share - net loss available to common stockholders	$	(1,749	)	$	(2,317	)

Denominator:
Weighted average common shares outstanding - basic		18,443			17,521
Net loss per common share - basic	$	(0.09	)	$	(0.13	)

The following common stock equivalents have been excluded from diluted net loss per share for the three months ended March 31, 2021 and 2020 because their inclusion would have been anti-dilutive (in thousands):

	Three Months Ended March 31,
	2021		2020
Shares of common stock subject to outstanding RSUs		633		1,043
Shares of common stock subject to outstanding PSUs		180		—
Shares of common stock subject to outstanding stock options		545		562
Shares of common stock subject to outstanding warrants		275		40
Shares of common stock issuable upon conversion of Series B convertible preferred stock		5,813		5,536
Total		7,446		7,181