Note 12 - Net Loss Per Share of Common Stock

12 Months Ended

Dec. 31, 2021

Notes to Financial Statements

Earnings Per Share [Text Block]

12. Net loss per share of Common Stock

The following table summarizes the computation of basic and diluted net loss per share attributable to common stockholders of the Company (in thousands, except per share data):

	Year Ended
	December 31,
	2021			2020
Net loss	$	(39,151	)	$	(30,543	)
Basic and diluted net loss per share	$	(1.95	)	$	(1.93	)
Weighted-average shares used to compute basic and diluted net loss per share		20,070			15,790

Basic net loss attributable to common stockholders per share is computed by dividing the net loss attributable to common stockholders by the weighted-average number of common shares outstanding for the period. Diluted net loss attributable to common stockholders per share is computed by dividing the net loss attributable to common stockholders by the weighted-average number of common shares and dilutive common stock equivalents outstanding for the period, determined using the treasury-stock method and the as-if converted method, for convertible securities, if inclusion of these is dilutive. Because the Company has reported a net loss for the years ended December 31, 2021 and 2020, the Company did not have dilutive common stock equivalents and therefore diluted net loss per common share is the same as basic net loss per common share for those years.

The following potentially dilutive securities outstanding at the end of the years presented have been excluded from the computation of diluted shares outstanding:

	Year Ended
	December 31,
	2021		2020
Options to purchase common stock		2,439,253		2,173,776
Restricted stock units		—		233