Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Deferred tax assets:
Net operating loss carryforwards	$ 21,832	$ 20,564
Inventory	260	462
Accruals	614	366
Depreciation and amortization	4	9
Research and experimental credits	4,304	3,995
Research and experimental expenditures	4,374	6,412
Stock-based compensation	397	428
Right of use liability	735	1,045
Gross deferred tax assets	32,520	33,281
Valuation allowance	(31,337)	(31,343)	$ (27,748)
Deferred tax assets	1,183	1,938
Deferred tax liabilities:
Right of use asset	(716)	(1,024)
Other	(322)	(646)
Deferred tax liabilities	(1,038)	(1,670)
Net deferred tax assets	$ 145	$ 268