v3.26.1
License Agreements - Additional Information (Detail) - USD ($)
 12 Months Ended 114 Months Ended
Jan. 22, 2018
May 14, 2015
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2025
Jul. 31, 2016
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]              
Cash     $ 200,000     $ 200,000  
Loss on contingent consideration     408,000 $ 621,000 $ 528,000    
University of Bristol [Member]              
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]              
Maximum amount payable under license agreement, tied to milestones             $ 3,200,000
Payments under license agreement           125,000  
University of Bristol [Member] | Amendment to the University of Bristol License Agreement [Member]              
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]              
Maximum amount payable under license agreement, tied to milestones $ 1,700,000            
Payments under license agreement $ 37,500            
Sopharma [Member] | Share Purchase Agreement [Member]              
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]              
Percentage of outstanding shares acquired   75.00%          
Cash   $ 2,000,000          
Deferred payment   $ 2,000,000          
Fair value of the contingent consideration     1,600,000     $ 1,600,000  
Loss on contingent consideration     $ 400,000 $ 600,000 $ 500,000