Stockholders' Equity (Tables)

9 Months Ended

Sep. 30, 2026

Share-Based Payment Arrangement [Abstract]

Schedule of Stock Option Activity

The following table summarizes the stock option activity:

	Number of Options	Weighted Average Exercise Price
Outstanding at December 31, 2025	4,252,490	$	5.45
Granted	—	$	—
Exercised	(1,527,406)	$	5.17
Forfeited/Cancelled	(95,917)	$	5.71
Outstanding at September 30, 2026	2,629,167	$	5.60

Schedule of RSU and PSU Activity

The following table summarizes the RSU and PSU activity under the 2021 Equity Incentive Plan and the 2023 Inducement Plan:

	Number of Shares		Weighted Average Grant Date Fair Value Per Share
	Non-Employee Directors	Directors, Officers and Employees	Non-Employee Directors		Directors, Officers and Employees
Unvested at December 31, 2025	418,924	5,266,468	$	4.28	$	3.92
Granted	447,917	6,901,685	$	3.04	$	3.34
Vested	(390,133)	(1,919,983)	$	4.38	$	3.70
Forfeited	—	(1,080,643)	$	—	$	3.50
Unvested at September 30, 2026	476,708	9,167,527	$	3.03	$	3.58

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

The following table summarizes the key input assumptions used in the Black-Scholes option-pricing model to estimate the grant-date fair value of the 2021 ESPP:

	September 30, 2026
Expected life of options (in years)	0.50
Expected stock price volatility	56.53%
Risk free interest rate	3.77%
Expected dividend yield	—%
Grant-date fair value per share	$1.01

Schedule of Stock-Based Compensation Expense

Stock-based compensation expense related to RSU and PSU awards under the 2021 Equity Incentive Plan and the 2023 Inducement Plan, 2021 ESPP purchases and stock options, as applicable, are as follows:

	For the three months ended September 30,				For the nine months ended September 30,
	2026		2025		2026		2025
(In thousands)
Selling, general and administrative	$	2,998	$	2,200	$	8,064	$	6,936
Research and development	144		199		558		590
Total stock-based compensation expense	$	3,142	$	2,399	$	8,622	$	7,526