Stock-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2022

Schedule Of Stock Based Compensation Expense [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, 2022:

Risk-free interest rate	1.8	%
Expected term (in years)	6.0
Expected volatility	76.5	%
Expected dividend yield	0	%

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 life		Aggregate Intrinsic Value
Balance at January 1, 2022		24,064,586		$	4.23		7.4	$	56,525
Granted		120,727		$	5.08
Exercised		(10,255	)	$	3.74
Forfeited		(175,852	)	$	6.89
Outstanding at March 31, 2022		23,999,206		$	4.22	8.59		$	117,847
Vested and expected to vest March 31, 2022		23,999,206		$	4.22	8.59		$	117,847
Exercisable at March 31, 2022		20,203,497		$	3.55	8.55		$	111,059

Schedule of Activity Related to RSU Stock-Based Payment Awards

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

	Number Shares			Weighted average grant date fair value
Outstanding at December 31, 2021		474,700		$	7.20
Granted		54,466		$	4.59
Forfeited		(11,550	)	$	7.20
Outstanding at March 31, 2022		517,616		$	6.93

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:

	Three Months Ended March 31,
	2022		2021
Cost of revenue	$	37	$	16
Research and development		248		347
Selling, general and administrative		2,137		646
	$	2,422	$	1,009