Income Taxes - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Operating Loss Carryforwards [Line Items]
Net operating losses	$ (93,435,000)	$ (62,680,000)
Deferred tax assets, valuation allowance income tax expense (benefit)	39,000	59,000
Significant change in unrecognized tax benefits is reasonably possible, amount of unrecorded benefit	0
Valuation allowance	84,810,000	59,956,000
Increase in valuation allowance	24,800,000	(19,500,000)
Valuation Allowance of Deferred Tax Assets [Member]
Operating Loss Carryforwards [Line Items]
Deferred tax assets, valuation allowance income tax expense (benefit)	0	0
U.S. federal jurisdiction
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	$ 23,700,000
Operating loss carryforwards limitations on use	offset future income tax liabilities and expire at various dates through 2037
Deferred Tax Assets, Tax Credit Carryforwards, Research	$ 6,400,000	4,200,000
U.S. federal jurisdiction | Minimum
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	147,800,000
State jurisdiction
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	$ 84,200,000
Operating loss carryforwards limitations on use	offset future income tax liabilities and expire at various dates through 2044
Deferred Tax Assets, Tax Credit Carryforwards, Research	$ 2,000,000.0	1,100,000
State jurisdiction | IRC 382
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards			$ 125,800,000
Deferred Tax Assets, Tax Credit Carryforwards, Research			$ 2,800,000
Massachusetts | IRC 382
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards		$ 121,200,000