Income Taxes (Tables)

12 Months Ended

Dec. 31, 2023

Income Tax Disclosure [Abstract]

Schedule of Components of Loss Before Income Taxes

The components of loss before income taxes are as follows:

	Year ended December 31,
	2023			2022
	(in thousands)
United States	$	(51,919	)	$	(56,817	)
Foreign		546			(1,408	)
Loss from operations before income taxes	$	(51,373	)	$	(58,225	)

Schedule of Components of Income Tax (Benefit) Expense

The components of income tax (benefit) expense are as follows:

	Year ended December 31,
	2023		2022
.	(in thousands)
Current:
Federal		—		—
State		11		8
Foreign		—		—
Total current expense:		11		8
Deferred expense :
Federal		—		—
State		—		—
Foreign		—		—
Total deferred expense:		—		—
Total	$	11	$	8

Schedule of Reconciliation of Income Tax (Benefit) Expense

	Year ended December 31,
	2023					2022
	(in thousands)
Federal statutory rate	$	(10,788	)	21.00	%	$	(12,228	)	21.00	%
Effect of:
Nondeductible expenses		5		-0.01	%		(78	)	0.13	%
Nontaxable changes in fair value of convertible notes and SAFEs		64		-0.12	%		(123	)	0.21	%
Research and development tax credits		(1,820	)	3.54	%		(2,670	)	4.59	%
State taxes, net of federal benefit		(2,165	)	4.21	%		(1,865	)	3.20	%
Foreign tax rate differential		(11	)	0.02	%		28		-0.05	%
Changes in federal tax rates		648		-1.26	%		—		0.00	%
Other		—		0.00	%		(190	)	0.33	%
Change in valuation allowance		10,776		-20.98	%		15,567		-26.73	%
Disqualified debt		(505	)	0.98	%		731		-1.26	%
Return to provision adjustements		-		0.00	%		(1,060	)	1.82	%
Intangibles		—		0.00	%		1,281		-2.20	%
Stock based compensation		3,807		-7.41	%		615		-1.06	%
Total	$	11		-0.03	%	$	8		-0.01	%

Schedule of Significant Components of the Companys Deferred Tax Assets (Liabilities)

Significant components of the Company’s deferred tax assets (liabilities) are as follows:

.	Year ended December 31,
	2023			2022
.	(in thousands)
Deferred tax assets:
Net operating loss carryforwards - Federal	$	21,544		$	16,776
Capitalized research and development		3,517			3,768
Research and development tax credits		5,627			3,593
Net operating loss carryforwards - State		4,708			3,752
Net operating loss carryforwards - Foreign		2,760			1,894
Stock-based compensation		3,677			—
Fixed assets and intangibles		725			—
Other		85			1,219
Total deferred tax assets, gross:	$	42,643		$	31,002
Valuation allowance		(42,529	)		(30,134	)
Total deferred tax assets, net:	$	114		$	868
Deferred tax liabilities:
Fixed assets and intangibles		—			(868	)
Right of Use Asset		(108	)		—
Unrealized Gain or Loss		(6	)		—
Total deferred tax liabilities:	$	(114	)	$	(868	)
Deferred income tax assets, net:	$	—		$	—