Net Loss Per Share

9 Months Ended

Sep. 30, 2021

Note 3. Net Loss Per Share

Basic net loss per share is calculated by dividing net loss by the weighted average shares of common stock outstanding for the period. Diluted net loss per share is calculated by dividing net loss by the weighted average shares of common stock outstanding for the period plus amounts representing the dilutive effect of securities that are convertible into common stock. The Company calculates diluted loss per common share using the treasury stock method.

The following table presents the computation of net loss per share (in thousands except per share data):


	Three months ended September 30,						Nine months ended September 30,
	2021			2020			2021			2020
Numerator:
Net loss	$	(3,069	)	$	(261	)	$	(5,441	)	$	(2,199	)
Denominator:
Basic weighted average common shares outstanding		10,082			9,710			9,993			9,694
Plus dilutive effect of potential common shares		—			—			—			—
Diluted weighted average common shares outstanding		10,082			9,710			9,993			9,694
Net loss per share:
Basic	$	(0.30	)	$	(0.03	)	$	(0.54	)	$	(0.23	)
Diluted	$	(0.30	)	$	(0.03	)	$	(0.54	)	$	(0.23	)

Potentially dilutive securities (in common stock equivalent shares) not included in the calculation of diluted net loss per share because to do so would be anti-dilutive are as follows (in thousands):


	Three months ended September 30,				Nine months ended September 30,
	2021		2020		2021		2020
Stock options and restricted stock		1,147		1,451		1,252		1,622
Warrants outstanding		—		3		—		51
Total common stock equivalent shares		1,147		1,454		1,252		1,673