v3.26.1
Nature of the Business - Additional Information (Detail) - USD ($)
$ / shares in Units, $ in Thousands
 1 Months Ended 6 Months Ended 9 Months Ended 12 Months Ended
Mar. 12, 2026
Feb. 20, 2026
Dec. 12, 2025
Sep. 25, 2025
Aug. 15, 2025
Jun. 30, 2026
Jun. 30, 2026
Jun. 30, 2025
Sep. 30, 2021
Dec. 31, 2025
May 31, 2026
Feb. 26, 2026
Aug. 20, 2025
Dec. 31, 2024
Jan. 09, 2024
Dec. 31, 2023
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]                                
Accumulated deficit           $ (308,836) $ (308,836)     $ (300,580)       $ (294,585)   $ (291,442)
Sales milestones             $ 470,000     $ 470,000            
Sale of stock, authorized amount of common stock                         $ 20,000      
Common stock, par value           $ 0.01 $ 0.01     $ 0.01 $ 0.01   $ 0.01 $ 0.01   $ 0.01
Warrant exercise price per share           $ 0.44 $ 0.44     $ 0.88            
Cash, cash equivalents and marketable securities           $ 62,000 $ 62,000     $ 4,800            
Securities       $ 9,500                        
Sale of Stock, Consideration Received Per Transaction         $ 9,500                      
Proceeds from issuance initial public offering           $ 58,300 $ 60,295 $ 0                
Common stock, shares authorized           100,000,000 100,000,000     500,000,000       500,000,000   500,000,000
Coastlands Securities Agreement [Member]                                
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]                                
Warrant exercise price per share       $ 0.11               $ 0.11        
Securities         1,000                      
New Money Investment                 $ 15,000 $ 5,000            
Proceeds received       $ 5,000                        
Sale of Stock, Consideration Received on Transaction         $ 20,000                      
Domicilium Securities Purchase Agreement [Member]                                
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]                                
Common stock, par value                             $ 0.01  
Warrant exercise price per share                             $ 0.11  
First Tranche [Member]                                
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]                                
Securities       8,500                        
Third Tranche [Member]                                
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]                                
Securities       1,000                        
Third Tranche [Member] | Hercules Term Loan Agreement [Member]                                
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]                                
Securities       $ 1,000                        
Third Tranche [Member] | Coastlands Securities Agreement [Member]                                
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]                                
Securities   $ 1,000               $ 100            
Proceeds received   $ 15,000                            
Third Tranche [Member] | Domicilium Securities Purchase Agreement [Member] | Subsequent Event [Member]                                
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]                                
Proceeds received $ 2,000                              
Pre-Funded Warrants [Member]                                
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]                                
Common stock, par value       $ 5.39                        
Warrant exercise price per share       $ 0.11                        
Sale of Stock, Consideration Received Per Transaction $ 2,000                              
Issuance of warrant       742,115                        
Additional cash and cash equivalent and available for sale debt securities       $ 4,000                        
Pre-Funded Warrants [Member] | First Tranche [Member]                                
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]                                
Warrant exercise price per share       $ 0.11                        
Issuance of warrant       1,576,542                        
Pre-Funded Warrants [Member] | Second Tranche [Member] | Coastlands Securities Agreement [Member]                                
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]                                
Issuance of warrant     927,643                          
Additional cash and cash equivalent and available for sale debt securities     $ 5,000                          
Common Stock [Member]                                
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]                                
Common stock, par value     $ 5.39                          
Warrant exercise price per share     $ 0.11                          
Minimum [Member]                                
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]                                
Common stock, shares authorized                     500,000,000          
Minimum [Member] | First Tranche [Member] | Coastlands Securities Agreement [Member]                                
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]                                
Proceeds received     $ 10,000                          
Maximum [Member]                                
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]                                
Common stock, shares authorized                     100,000,000