Stock Compensation (Table)

12 Months Ended

Dec. 31, 2021

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Summary of Share-based Compensation Arrangements by Share-based Payment Award

Stock option activity under the 2017 EIP and 2021 EIP was as follows:

	NUMBER OF OPTIONS			WEIGHTED- AVERAGE EXERCISE PRICE PER SHARE		WEIGHTED- AVERAGE REMAINING CONTRACTUAL LIFE (YEARS)		AGGREGATE INTRINSIC VALUE (000s)
Outstanding as of December 31, 2020		1,855,507		$	2.99		9.79	$	8
Granted		1,217,914			9.36
Exercised		(145,805	)		3.77
Cancelled and forfeited		(3,095	)		9.39
Outstanding as of December 31, 2021		2,924,521			5.62		9.11	$	61,712
Options exercisable as of    December 31, 2021		467,621			3.01		8.91	$	11,089
Vested and expected to vest as of    December 31, 2021		2,924,521		$	5.62		9.11	$	61,712

Summary of Share-based Payment Arrangement, Expensed and Capitalized, Amount

The following tables summarize the stock-based compensation expense for stock options and restricted stock awards granted to employees and nonemployees that was recorded in the Company’s statements of operations and comprehensive loss for the year ended December 31, 2021 and 2020 (in thousands).

	Year Ended December 31,
	2021		2020
Research and development	$	915	$	4
General and administrative		2,097		327
Total stock-based compensation expense	$	3,012	$	331

	Year Ended December 31,
	2021		2020
Employees	$	2,605	$	321
Nonemployees		407		10
Total stock-based compensation expense	$	3,012	$	331

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions

The fair value of stock options granted during the year ended December 31, 2021 and 2020 was estimated using the Black-Scholes option pricing model based on the following weighted average assumptions.

	Year Ended December 31,
	2021	2020
Expected term (in years)	5.5 – 6.1	5.5 – 6.1
Expected volatility	75.4% – 76.8%	86.1% – 92.5%
Risk-free rate	0.6% – 1.3%	0.41% – 1.67%
Dividend yield	—	—

Summary of Share-based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity

The following table summarizes the activity for the Company’s restricted stock for the year ended December 31, 2021.

	NUMBER OF SHARES
Unvested as of December 31, 2020		41,363
Vested		(41,363	)
Unvested as of December 31, 2021		—