Net Loss Per Share Attributable to Common Stockholders (Tables)

12 Months Ended

Dec. 31, 2021

Earnings Per Share [Abstract]

Computation of Basic and Diluted Net Loss Per Share Attributable to Common Stockholders

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

	Year Ended December 31,
	2021			2020			2019
Net loss	$	(61,381	)	$	(31,085	)	$	(30,994	)
Deemed dividend to preferred stockholders		—			(8,801	)		—
Net loss attributable to noncontrolling interest		2			—			—
Net loss attributable to common stockholders	$	(61,379	)	$	(39,886	)	$	(30,994	)
Weighted-average number of shares outstanding used to compute net    loss per share attributable to common stockholders, basic and diluted		26,318,349			7,492,876			6,345,498
Net loss per share attributable to common stockholders, basic and diluted	$	(2.33	)	$	(5.32	)	$	(4.88	)

Schedule of Outstanding Shares of Potentially Dilutive Securities Excluded from Computation of Diluted Net Loss Per Share

The following outstanding shares of potentially dilutive securities were excluded from the computation of diluted net loss per share because including them would have had an anti-dilutive effect, or issuance of such shares is contingent upon the occurrence of an event:

	December 31,
	2021		2020
Convertible preferred stock		—		27,758,941
Stock options outstanding		3,286,870		3,152,774
Unvested restricted stock units		186,480		—
Warrants outstanding		87,784		112,026
Shares reserved for charitable contribution		362,392		—
Total shares		3,923,526		31,023,741