Share-Based Compensation (Tables)

3 Months Ended

12 Months Ended

Mar. 31, 2022

Dec. 31, 2021

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

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 stock options valuation assumptions

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%

Schedule of unvested stock options activity

	Number of	Carrying
	Shares	Value
Unvested as of December 31, 2019	86,032	$	115
Exercised	1,375	$	2
Repurchased	(42,073)	$	(49)
Vested	(24,394)	$	(32)
Unvested as of December 31, 2020	20,940	$	36
Exercised	463,816	$	917
Repurchased	(13,876)	$	(23)
Vested	(88,841)	$	(145)
Unvested as of December 31, 2021	382,039	$	785

Restricted Stock [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule of unvested stock options activity

		Weighted-
		average
	Number of	Grant Date
	Shares	Fair Value
Unvested balance as of December 31, 2019.	1,940,130	$	1.21
Granted	—	$	—
Vested	(541,704)	$	1.69
Cancelled/Forfeited	—	$	—
Unvested balance as of December 31, 2020.	1,398,426	$	1.02
Granted	—	$	—
Vested	(500,000)	$	1.78
Cancelled/Forfeited	—	$	—
Unvested balance as of December 31, 2021	898,426	$	0.60

Share-based Payment Arrangement, Option

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule of Stock option activity

				Weighted-	Aggregate
		Weighted-average		averages	Intrinsic
	Stock Options	Exercise Price		Life (Years)	Value
Balance as of December 31, 2019	1,081,579	$	2.31	8.9	$	2,817
Granted	3,251,443	$	2.60
Exercised	(307,778)	$	1.56
Cancelled/Forfeited/Expired	(816,181)	$	2.03
Balance as of December 31, 2020	3,209,063	$	1.57	9.1	$	16,094
Granted	3,457,020	$	9.37
Exercised	(1,247,236)	$	1.68
Cancelled/Forfeited/Expired	(387,537)	$	2.00
Balance as of December 31, 2021	5,031,310	$	6.85	9.2	$	120,491
Vested and exercisable as of December 31, 2021	1,284,624	$	2.33	8.3	$	36,579

Schedule of stock options valuation assumptions

Fair value of common stock	$	19.07
Expected term (years)		5.3
Expected volatility		40.0	%
Risk-free interest rate.		0.7	%
Expected dividend yield		0.0	%