Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2022

Share-based Payment Arrangement [Abstract]

Summary of Restricted Stock Activity

A summary of the Company’s restricted stock activity and related information is as follows:

	Number of Shares of Restricted Stock Awards			Weighted Average Grant Date Fair Value
Unvested as of December 31, 2021		12,537		$	24.79
Vested		(7,865	)		24.12
Canceled/Forfeited		(18	)		15.37
Unvested as of June 30, 2022		4,654		$	25.97

Summary of Restricted Stock Unit Activity

A summary of the Company’s restricted stock unit activity and related information is as follows:

	Number of Restricted Stock Units			Weighted Average Grant Date Fair Value
Unvested as of December 31, 2021		—		$	—
Granted		313,185			3.50
Vested		—			—
Canceled/Forfeited		(6,109	)		3.50
Unvested as of June 30, 2022		307,076		$	3.50

Summary of Stock Option Activity

A summary of the Company’s stock option activity and related information is as follows:

	Number of Stock Options			Weighted Average Exercise Price		Weighted Average Remaining Contractual Term		Aggregate Intrinsic Value
						(In years)		(In thousands)
Outstanding as of December 31, 2021		3,037,463		$	5.34		8.9	$	629
Granted		920,000			3.36
Exercised		—			—
Cancelled/forfeited		(131,388	)		7.62
Outstanding as of June 30, 2022		3,826,075		$	4.78		8.8	$	767
Exercisable as of June 30, 2022		1,428,394		$	5.06		8.4	$	4
Vested and expected to vest as of June 30, 2022		3,826,075		$	4.78		8.8	$	767

Schedule of Components and Classification of Stock-Based Compensation Expense

The following table presents the components and classification of stock-based compensation expense (in thousands):

	Three Months Ended June 30,				Six Months Ended June 30,
	2022		2021		2022		2021
Research and development	$	390	$	312	$	774	$	583
General and administrative		456		452		913		827
Total stock-based compensation expense	$	846	$	764	$	1,687	$	1,410