v3.26.1
Option/License Agreement - Additional Information (Detail) - USD ($)
1 Months Ended 3 Months Ended 6 Months Ended 9 Months Ended 12 Months Ended
Jan. 03, 2026
Sep. 19, 2025
Jul. 22, 2024
Jun. 03, 2021
Feb. 28, 2026
Aug. 31, 2024
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Sep. 30, 2025
Dec. 31, 2025
Dec. 31, 2024
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]                          
Option fee           $ 150,000              
Option additional fee     $ 80,000                    
Recognized revenue related to the option fee payment and expense reimbursement               $ 100,000   $ 200,000      
Research and development               56,000 $ 730,000 92,000      
Revenues               93,000 0 174,000      
Patent License Agreement [Member]                          
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]                          
Recognized revenue related to the option fee payment and expense reimbursement   $ 4,400,000                      
Expenses             $ 0 0 0 0      
Akebia Research License Agreement [Member]                          
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]                          
Up front payment received       $ 3,000,000                  
Amendment Akebia Research License Agreement [Member]                          
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]                          
Up front payment received       $ 1,750,000                 $ 1,250,000
Additional up front payment                     $ 500,000    
Development milestone payment         $ 1,000,000                
Commercialization milestone payments                 557,500,000        
Akebia Material Purchase Agreement [Member]                          
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]                          
Payment of additional development materials                       $ 800,000  
Revenues             0 $ 0 0 $ 0      
Medsteer Collaboration Agreement [Member]                          
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]                          
Recognized revenue related to the option fee payment and expense reimbursement $ 3,700,000                        
Research and development             $ 0   $ 100,000