Equity Incentive Plans (Tables)

12 Months Ended

Dec. 31, 2024

Equity Incentive Plans

Schedule of Stock Option Activity

	Options Outstanding
				Weighted
				Average
		Weighted		Remaining
		Average		Contractual	Aggregate
		Exercise		Term	Intrinsic
	Shares	Price		(Years)	Value (in thousands)
Outstanding at December 31, 2023	3,165,216	$	5.04	5.9	$	429
Granted	1,859,054	$	3.34		$	—
Exercised	(37,282)	$	3.38		$	24
Forfeited/Cancelled/Expired	(1,231,023)	$	6.48		$	4
Outstanding at December 31, 2024	3,755,965	$	3.74	7.5	$	4
Vested and expected to vest at December 31, 2024	3,755,965	$	3.74	7.5	$	4
Exercisable at December 31, 2024	2,059,396	$	4.04	6.4	$	2

Schedule of restricted stock awards

		Weighted Avg
		Grant Date
	Shares	Fair Value
Outstanding at December 31, 2023	200,000	$	2.39
Granted	90,000	$	3.38
Vested	(50,000)	$	2.39
Cancelled	(20,000)	$	3.38
Outstanding at December 31, 2024	220,000	$	2.73

Schedule of Assumptions Used in the Black-Scholes Model

	Year Ended December 31,
	2024	2023
Risk-free interest rate	3.54%-4.25%	3.54%-5.54%
Expected volatility	89.40%-92.50%	75.40%-116.96%
Expected term (in years)	5.1-7.0	0.1-7.0
Expected dividend yield	0%	0%

Schedule of Stock-Based Compensation Expenses

The tables below summarize the total stock-based compensation expense (reversal) included in the Company’s consolidated statements of operations for the periods presented (in thousands):

	Year Ended December 31,
	2024		2023
Research and development	$	663	$	1,013
General and administrative		2,230		(75)
Total stock-based compensation	$	2,893	$	938