v3.25.4
Income Taxes - Additional Information (Detail) - USD ($)
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Income Tax Disclosure [Line Items]      
Income tax expense $ 0 $ 5,000  
Valuation allowance 134,280,000 134,433,000 $ 125,055,000
Net operating loss carryforwards $ 401,800,000    
Description of tax benefit likely to be realized upon settlement greater than 50%    
Unrecognized tax benefits $ 0    
Interest or penalties accrued $ 0 0  
Income tax examination description In the normal course of business, the Company is subject to examination by federal and state jurisdictions, where applicable. There are currently no pending tax examinations. Tax years from 2021 to the present are open to examination under the statute.    
Maximum      
Income Tax Disclosure [Line Items]      
Income tax expense $ 0 0  
Federal      
Income Tax Disclosure [Line Items]      
Net operating loss carryforwards 401,800,000    
Net operating loss carryforwards subject to expiration 62,400,000    
Net operating loss carryforwards not subject to expiration $ 339,400,000    
Federal | Minimum [Member]      
Income Tax Disclosure [Line Items]      
Net operating loss carryforwards expiration year 2034    
Federal | Maximum      
Income Tax Disclosure [Line Items]      
Net operating loss carryforwards expiration year 2037    
State      
Income Tax Disclosure [Line Items]      
Net operating loss carryforwards $ 387,900,000    
Net operating loss carryforwards expiration year 2029    
State | Research and Development.      
Income Tax Disclosure [Line Items]      
Tax credit carryforwards $ 7,500,000 $ 4,400,000