Income Taxes - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Operating Loss Carryforwards [Line Items]
Net operating losses	$ (62,680,000)	$ (55,278,000)
Deferred tax assets, valuation allowance income tax expense (benefit)	0	0
Income Tax Expense (Benefit)	59,000	13,000
Significant change in unrecognized tax benefits is reasonably possible, amount of unrecorded benefit	0
Valuation allowance	59,956,000	40,512,000
Increase in valuation allowance	(19,500,000)	(14,200,000)
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	$ 4,200,000	1,400,000
U.S. federal jurisdiction | Minimum
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	104,600,000
State jurisdiction
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	$ 48,300,000
Operating loss carryforwards limitations on use	offset future income tax liabilities and expire at various dates through 2043
Deferred Tax Assets, Tax Credit Carryforwards, Research	$ 1,100,000	400,000
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