Income Taxes (Tables)

12 Months Ended

Dec. 31, 2025

Income Tax Disclosure [Abstract]

Schedule of Components of Provision for Income Taxes

The components of the provision for income taxes are summarized as follows (in thousands):

	Year ended December 31,
	2025			2024
Current:
Federal	$	—		$	—
State		—			—
Foreign		207			346
Total current		207			346
Deferred:
Federal		—			—
State		—			—
Foreign		(6	)		(248	)
Total deferred		(6	)		(248	)
Provision for income taxes	$	201		$	98

Schedule of Reconciliation of U.S. Federal Statutory Rate to Effective Tax Rate

A reconciliation of the U.S. federal statutory rate to the Company's effective tax rate for the year ended December 31, 2025, subsequent to the adoption of ASU 2023-09, including the amount and percentage of income before taxes, was as follows (in thousands, except percentages):

	Year Ended December 31, 2025
	Amount			Percentage
Federal tax benefit at statutory rate	$	(15,414	)		21.0	%
State taxes, net of federal benefit (1)		(242	)		0.3	%
Foreign tax effects		73			(0.1	)%
Research and development credits		(1,560	)		2.1	%
Changes in valuation allowance		14,090			(19.2	)%
Nontaxable or nondeductible items
Executive compensation		274			(0.4	)%
Stock-based compensation		1,657			(2.3	)%
Other		99			(0.1	)%
Changes in unrecognized tax benefits		632			(0.9	)%
Other adjustments		592			(0.8	)%
Provision for income taxes	$	201			(0.3	)%

(1) State taxes in California made up greater than 50% of the tax effect in this category.

A reconciliation of the U.S. federal statutory rate to the Company's effective tax rate for the year ended December 31, 2024, prior to the adoption of ASU 2023-09, was as follows (in thousands):

	Year Ended December 31, 2024
Federal tax benefit at statutory rate	$	(18,166	)
State taxes, net of federal benefit		(2,492	)
Change in valuation allowance		17,136
Stock-based compensation tax deduction over book expense		4,730
Permanent differences		33
Research and development credits		(2,123	)
Executive compensation limitation		1,926
Other		(946	)
Provision for income taxes	$	98

Schedule of Income Taxes Paid, Net of Refunds

Income taxes paid, net of refunds, during the period presented were as follows (in thousands):

	Year Ended December 31, 2025
Federal	$	—
State		—
Foreign
United Kingdon		154
Germany		28
Total income taxes paid, net of refunds	$	182

Schedule of Deferred Tax Assets and Liabilities

The categories that give rise to significant components of the Company's deferred tax assets and liabilities are as follows (in thousands):

	December 31,
	2025			2024
Deferred tax assets:
Net operating loss carryforwards	$	69,558		$	50,602
Accruals and reserves		1,050			1,259
Research and development credits		10,435			8,538
Stock-based compensation		10,670			11,408
Lease liabilities		5,776			6,664
Capitalized research and experimentation		13,392			17,879
Fixed assets		—			269
Other		2,145			641
Gross deferred tax assets		113,026			97,260
Valuation allowance		(107,579	)		(91,163	)
Deferred tax liabilities:
Fixed assets		(190	)		—
Right-of-use assets		(5,003	)		(5,849	)
Gross deferred tax liabilities		(5,193	)		(5,849	)
Total net deferred tax assets:	$	254		$	248

Schedule of Unrecognized Tax Benefits Roll Forward

The beginning and ending unrecognized tax benefits amounts are as follows (in thousands):

	December 31,
	2025		2024
Beginning balance	$	3,136	$	2,364
Change related to prior year positions		—		—
Change related to current year positions		697		772
Ending balance	$	3,833	$	3,136