Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2021

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Schedule of Assumptions Used to Calculate Fair Value of Options Granted to Employees

The fair value of stock options granted to employees during the years ended December 31, 2021 and 2020 was estimated at the date of grant using the following assumptions:

	Years Ended December 31,
	2021	2020
Risk-free interest rate	0.73%	0.2%
Expected dividend yield	0%	0%
Expected term	5.2 years	5.3 years
Expected volatility	68.48%	67.00%

Summary of Stock Option Activity

The following table summarizes stock option activity during the year ended December 31, 2021:

(in thousands, except per share amounts)	Options			Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Term (in years)		Aggregate Intrinsic Value
Outstanding at December 31, 2020		1,862		$	11.97		6.04	$	1,254
Granted		22		$	6.41
Exercised		(30	)	$	7.95
Forfeited		(76	)	$	20.94
Outstanding at December 31, 2021		1,778		$	11.46		5.32	$	148
Vested and expected to vest at December 31, 2021		1,778		$	11.46		5.32	$	148
Exercisable at December 31, 2021		1,767		$	11.53		5.30	$	148