Share-Based Compensation (Tables)

3 Months Ended

12 Months Ended

Mar. 31, 2022

Dec. 31, 2021

Share-based Payment Arrangement [Abstract]

Schedule of Common Stock Reserved for Future Issuance

The Company has the following shares of common stock reserved for future issuance, on an as-if converted basis:

	March 31,	December 31,
	2022	2021
Conversion of convertible preferred stock	—	86,815,192
Warrants to purchase convertible preferred stock	—	3,540,546
Warrants to purchase common stock	3,774,437	233,891
Shares available for grant under 2018 Plan	—	1,133,920
Stock options issued and outstanding under 2018 Plan	14,960,960	15,712,433
Shares available for grant under 2022 Plan	12,899,504	—
Stock options issued and outstanding under 2022 Plan	—	—
Shares available for grant under 2022 ESPP	4,072,000	—
Outstanding Private Placement Warrants	7,386,667	—
Outstanding Public Warrants	18,466,604	—
Total shares of common stock reserved	61,560,172	107,435,982

Schedule of Stock Option Activity

		Weighted		Weighted-
		Average Exercise		Averages Life	Aggregate
	Stock Options	Price		(Years)	Intrinsic Value
Balance as of December 31, 2021	5,031,310	$	6.85	9.2 years	$	120,491
Retroactive application of recapitalization	10,681,124	$	(4.66)
Balance as of December 31, 2021	15,712,434	$	2.19
Exercised	(194,977)	$	0.54
Cancelled/Forfeited/Expired	(556,497)	$	0.63
Balance as of March 31, 2022	14,960,960	$	2.27	8.7 years	$	472,858
Vested and exercisable as of March 31, 2022	4,549,923	$	0.80	8.0 years	$	150,512

Schedule of Valuation Assumptions Using Black-Scholes

Fair value of common stock	$	6.11
Expected term (years)		5.3
Expected volatility		40.0	%
Risk-free interest rate		0.7	%
Expected dividend yield		0.0	%

	2021	2020
Fair value of common stock	$8.80 – $21.29	$3.41 – $6.59
Expected term (years)	5.1 – 7.0	5.0 – 6.2
Expected volatility	40.0% – 41.4%	37.0% – 41.7%
Risk-free interest rate	0.7% –1.3%	0.3% – 0.8%
Expected dividend yield	0.0%	0.0%