Net Loss Per Share (Tables)

12 Months Ended

Dec. 31, 2021

Earnings Per Share [Abstract]

Schedule of Basic and Diluted Net Loss Per Share

Basic and diluted net loss per share attributable to common stockholders is calculated as follows (in thousands except share and per share amounts):

	Years Ended December 31,
	2021			2020
Net loss	$	(36,794	)	$	(20,100	)
Cumulative dividends on convertible preferred stock		—			(104	)
Net loss attributable to common stockholders	$	(36,794	)	$	(20,204	)
Net loss per share—basic and diluted	$	(1.33	)	$	(12.53	)
Weighted-average number of shares used in computing net loss per    share—basic and diluted		27,710,686			1,612,140

Potentially Dilutive Securities Excluded from Calculation of Diluted Net Loss Per Share

The following outstanding potentially dilutive securities have been excluded from the calculation of diluted net loss per share, as their effect is anti-dilutive:

	Years Ended December 31,
	2021		2020
Convertible preferred stock		—		747,683,172
Stock options to purchase common stock		2,649,965		1,947,123
Warrants issued to employees and contractor to purchase common stock		57,004		57,212
Warrants issued related to convertible notes and other equity agreements		412,262		412,262