Convertible Preferred Stock and Stockholders' Deficit (Tables)

12 Months Ended

Dec. 31, 2021

Redeemable Convertible Preferred Stock And Stockholders Equity [Abstract]

Summary of temporary equity

The authorized shares, purchase price, number of shares and liquidation amount for each series of convertible preferred stock as of December 31, 2020, as adjusted for the Exchange Ratio, is as follows (in thousands, except share and per share amounts):

	Shares Authorized		Purchase Price Per Share		Shares Outstanding		Liquidation Preference
Convertible preferred stock:
Series A		14,056,840	$	4.05382		11,563,819	$	46,878
Series B		11,071,448	$	5.05806		10,154,819	$	51,364
Series C		7,346,140	$	5.32253		6,734,590	$	35,845
Total		32,474,428				28,453,228	$	134,087

Schedule of assumptions used in the Black-Scholes option pricing model to determine the fair value of the stock option grants.

The assumptions used in the Black-Scholes option pricing model to determine the fair value of the stock option grants were as follows:

	Year Ended December 31,
	2021	2020
Risk-free interest rate	0.7% - 1.3%	0.3% - 1.0%
Expected volatility	81% - 90%	87% - 93%
Expected term (in years)	5.5 - 6.1	5.3 - 6.1
Expected dividend yield	0%	0%

Summary of Company's stock option activity

A summary of the Company’s stock option activity under the plans is as follows (in thousands, except share and per share amounts and years):

	Shares			Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Term		Aggregate Intrinsic Value
Outstanding at December 31, 2020		3,887,038		$	1.41		6.6	$	3,806
Granted		484,512			10.81		9.7
Exercised		(98,936	)		1.09		4.4
Cancelled		(79,293	)		6.13		8.3
Outstanding at December 31, 2021		4,193,321		$	2.41		6.0	$	26,115
Vested and exercisable at December 31, 2021		3,076,726		$	1.43		5.0	$	21,191

Schedule of Common Stock, Reserved for Future Issuance

Common stock reserved for future issuance consists of the following as of December 31, 2021 and December 31, 2020:

	December 31, 2021		December 31, 2020
Convertible preferred stock		—		28,453,228
Stock options issued and outstanding		4,193,321		3,887,038
Preferred stock warrants issued and outstanding		—		70,455
Public warrants issued and outstanding		5,833,333		—
Private placement warrants issued and outstanding		181,667		—
Earn-Out shares		5,000,000		—
Unvested sponsor shares		300,000		—
Authorized for future stock awards or option grants		6,201,340		132,974
Total		21,709,661		32,543,695