Stockholders' Equity (Tables)

12 Months Ended

Dec. 31, 2023

Equity [Abstract]

Schedule of Shares of Common Stock Reserved for Future Issuance

The following table lists the Black-Scholes option-pricing model assumptions used to calculate the fair value of employee and director stock options, as well as the resulting grant-date fair value:

	Year Ended December 31,
	2023			2022			2021
Average risk-free interest rate		4.0	%		2.9	%		1.2	%
Dividend yield		0.0	%		0.0	%		0.0	%
Average volatility factor		88.4	%		77.9	%		63.8	%
Weighted-average expected life	5.1 years			5.6 years			5.5 years
Weighted-average grant-date fair value of options granted	$	0.37		$	3.18		$	8.07