v3.26.1
Income Taxes - Additional Information (Detail) - USD ($)
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Operating Loss Carryforwards [Line Items]        
Net operating losses $ (28,919,000) $ (93,435,000)    
Deferred tax assets, valuation allowance income tax expense (benefit) 11,000 39,000    
Significant change in unrecognized tax benefits is reasonably possible, amount of unrecorded benefit 0      
Valuation allowance 91,767,000 84,810,000    
Increase in valuation allowance 7,000,000 (24,800,000)    
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 $ 23,800,000      
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 6,400,000    
U.S. federal jurisdiction | Minimum        
Operating Loss Carryforwards [Line Items]        
Operating loss carryforwards 287,900,000      
State jurisdiction        
Operating Loss Carryforwards [Line Items]        
Operating loss carryforwards $ 186,600,000      
Operating loss carryforwards limitations on use offset future income tax liabilities and expire at various dates through 2045      
Deferred Tax Assets, Tax Credit Carryforwards, Research $ 2,000,000 $ 2,000,000    
State jurisdiction | IRC 382        
Operating Loss Carryforwards [Line Items]        
Operating loss carryforwards       $ 125,400,000
Deferred Tax Assets, Tax Credit Carryforwards, Research       $ 2,800,000
Massachusetts | IRC 382        
Operating Loss Carryforwards [Line Items]        
Operating loss carryforwards     $ 125,800,000