Stock-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2023

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Schedule of Weighted Average Grant Fair Value of Stock Options using Black-Scholes Option-pricing Model

The following table presents, on a weighted average basis, the assumptions used in the Black-Scholes option-pricing model to determine the grant-date fair value of stock options granted during the three months ended March 31, 2023 and 2022:

	Three Months Ended
	March 31, 2023	March 31, 2022
Risk-free interest rate	N/A		1.8	%
Expected term (in years)	N/A		6.0
Expected volatility	N/A		76.5	%
Expected dividend yield	N/A		—	%

Schedule of Stock Option Activity

The following table summarizes option activity with service conditions under the 2021 Plan and the 2017 Plan:

	Options			Weighted Average Exercise Price		Weighted Average Contract Term (years)		Aggregate Intrinsic Value
Outstanding at January 1, 2023		25,059,409		$	4.90		6.1	$	7,851
Granted		—			—
Exercised		(1,071,000	)		0.28
Forfeited		(294,400	)		8.58
Outstanding at March 31, 2023		23,694,009		$	5.06		5.8	$	2,277
Vested and expected to vest March 31, 2023		23,694,009		$	5.06		5.8	$	2,277
Exercisable at March 31, 2023		19,589,188		$	4.43		5.3	$	2,277

Schedule of Activity Related to RSU Stock-Based Payment Awards

The following table summarizes activity related to RSU stock-based payment awards:

	Number of Shares			Weighted Average Grant Date Fair Value
Outstanding at January 1, 2023		2,274,029		$	7.34
Granted		4,094,900		$	0.70
Vested		(253,390	)	$	8.38
Forfeited		(300,559	)	$	6.83
Outstanding at March 31, 2023		5,814,980		$	2.64

Schedule of Stock-based Compensation Expense

The Company recorded stock-based compensation expense in the following expense categories of its condensed consolidated statements of operations:

	For the Three Months Ended March 31,
	2023		2022
Cost of revenues	$	164	$	37
Research and development		558		248
Selling, general and administrative		3,266		2,137
	$	3,988	$	2,422