Income Taxes - Schedule of Significant Components of Deferred Tax Assets and Liabilities (Detail) - USD ($)	Dec. 31, 2025	Dec. 31, 2024
Deferred tax assets:
Research and development tax credit carryforwards	$ 30,948,000	$ 27,721,000
Stock-based compensation	8,245,000	8,613,000
Inventory reserves	3,307,000	2,628,000
Investment tax credit carryforwards	1,029,000	1,290,000
UNICAP	2,820,000	2,833,000
Vacation accrual	1,273,000	1,344,000
Lease liabilities	1,404,000	1,331,000
Capitalized research and development	1,333,000	27,043,000
Net operating loss carryforwards	9,091,000	0
Accrued legal	6,755,000	6,894,000
Other	1,769,000	1,844,000
Total deferred tax assets	67,974,000	81,541,000
Less: Valuation allowance for deferred tax assets	(17,931,000)	(61,531,000)
Net deferred tax assets	50,043,000	20,010,000
Deferred tax liabilities:
Depreciation	(20,008,000)	(17,345,000)
ROU assets	(1,152,000)	(1,096,000)
Prepaid expenses	(1,357,000)	(1,239,000)
Other	(63,000)	(69,000)
Total deferred tax liabilities	(22,580,000)	(19,749,000)
Net deferred tax assets (liabilities)	$ 27,463,000	$ 261,000