Stock-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2023

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

Summary of Assumptions in the Binomial Option-Pricing Model Used to Determine The Fair Value of Stock Options

The following table presents the key inputs and assumptions used to value the RSUs that contain service and market conditions on the grant date:

Remaining term	5.0 years
Risk-free interest rate		3.5	%
Expected volatility		79.7	%

Summary of Stock Option Activity

Activity with respect to stock options is summarized as follows:

	Shares			Weighted-Average Exercise Price		Weighted- Average Remaining Contractual Term (years)		Aggregate Intrinsic Value (in thousands)
Options outstanding, January 1, 2023		904,220		$	21.04		7.3	$	655
Granted		-		$	-
Exercised		(994	)	$	1.01
Forfeited		(38,414	)	$	23.05
Expired		(16,501	)	$	22.11
Options outstanding, March 31, 2023		848,311		$	20.95		6.9	$	387
Nonvested options, March 31, 2023		480,297		$	23.13		7.9	$	-
Vested and exercisable, March 31, 2023		368,014		$	18.10		5.7	$	387

Chief Executive Officer [Member]

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

Summary of Assumptions in the Binomial Option-Pricing Model Used to Determine The Fair Value of Stock Options

The following table presents the key inputs and assumptions used to value the options granted to the Chief Executive Officer on the grant date:

Remaining term	10.0 years
Risk-free interest rate		1.5	%
Expected dividend yield		0.0	%
Expected volatility		40.0	%

Summary of Restricted Stock Activity

Activity with respect to RSUs is summarized as follows:

	Shares			Weighted-Average Grant-Date Fair Value
Nonvested shares at January 1, 2023		508,506		$	122.27
Granted		1,441,747		$	7.07
Vested		(67,317	)	$	97.44
Forfeited		(178,773	)	$	34.41
Nonvested shares at March 31, 2023		1,704,163		$	35.00