v3.25.4
Stockholders' Equity - Additional Information (Detail)
1 Months Ended 12 Months Ended
Jul. 01, 2025
USD ($)
$ / shares
shares
Jun. 02, 2025
USD ($)
$ / shares
shares
Oct. 31, 2025
USD ($)
$ / shares
shares
Aug. 31, 2025
$ / shares
shares
Feb. 28, 2025
USD ($)
$ / shares
shares
Nov. 30, 2022
USD ($)
Dec. 31, 2025
USD ($)
$ / shares
shares
Dec. 31, 2024
USD ($)
$ / shares
shares
Dec. 31, 2025
€ / shares
Jul. 01, 2025
€ / shares
shares
Jun. 02, 2025
€ / shares
shares
Class of Stock [Line Items]                      
Common stock value reduction             $ 38,100,000        
Preferred stock, shares issued | shares             0 0      
Preferred stock, shares authorized | shares             37,500,000 0      
Preferred stock, par value | $ / shares             $ 0.01 $ 0.01      
Preferred stock shares outstanding | shares             0 0      
Common stock, shares authorized | shares             750,000,000 750,000,000      
Common stock, shares, issued | shares             363,280,522 167,959,752      
Share price | € / shares                 € 0.1    
Issuance costs             $ 1,356,000 $ 0      
Proceeds from issuance of IPO         $ 59,100,000 $ 150,000,000          
Proceeds from issuance of pre-funded warrants             21,503,000 0      
Issuance costs allocated to pre-funded warrants             $ 1,357,000 0      
Proceeds from Issuance Initial Public Offering         $ 59,100,000 $ 150,000,000          
Preferred Stock [Member]                      
Class of Stock [Line Items]                      
Preferred stock, shares authorized | shares             37,500,000        
Preferred stock, par value | $ / shares             $ 0.01        
Common Stock [Member]                      
Class of Stock [Line Items]                      
Common stock, shares authorized | shares             750,000,000        
Cash dividends             $ 0 $ 0      
Share price | (per share)         $ 2.1   $ 0.01   € 0.1    
Common stock issuance price, cash             $ 18,300,000        
Issuance of common shares, net of issuance costs ,Shares | shares         26,190,477   85,660,979        
Stock issued during period, convertible share | shares             6,185,904        
Common Stock [Member] | Option Exercisable [Member]                      
Class of Stock [Line Items]                      
Additional common shares public offering price | shares         3,928,571            
Additional Common Shares Exercised Option | shares         3,928,571            
June 2025 PIPE Financing                      
Class of Stock [Line Items]                      
Exercise price, warrants | $ / shares   $ 0.01                  
Offering costs             $ 1,800,000        
Issuance costs allocated to pre-funded warrants             700,000        
Common shares allocated amount             1,100,000        
June 2025 PIPE Financing | Open Market Sale Agreement                      
Class of Stock [Line Items]                      
Share price | € / shares                     € 0.1
June 2025 PIPE Financing | Common Stock [Member]                      
Class of Stock [Line Items]                      
Share price | $ / shares   $ 1.84                  
Common stock issuance price, cash   $ 18,400,000                  
Issuance of common shares, net of issuance costs ,Shares | shares   9,993,341                  
Percentage of no of share owned by shareholders   4.99%                  
June 2025 PIPE Financing | Warrant [Member]                      
Class of Stock [Line Items]                      
Share price | $ / shares   $ 1.84                  
Proceeds from issuance of IPO   $ 11,500,000                  
Purchase of warrant | shares   6,311,006                 6,311,006
Proceeds from issuance of pre-funded warrants   $ 29,900,000                  
Proceeds from Issuance Initial Public Offering   $ 11,500,000                  
July 2025 PIPE Financing                      
Class of Stock [Line Items]                      
Share price | € / shares                   € 0.1  
Exercise price, warrants | $ / shares $ 0.01                    
Offering costs             3,300,000        
Issuance costs allocated to pre-funded warrants             700,000        
Common shares allocated amount             $ 2,600,000        
July 2025 PIPE Financing | Open Market Sale Agreement                      
Class of Stock [Line Items]                      
Exercise price, warrants | $ / shares 0.01                    
July 2025 PIPE Financing | Common Stock [Member]                      
Class of Stock [Line Items]                      
Share price | $ / shares $ 2.19                    
Common stock issuance price, cash $ 40,000,000                    
Issuance of common shares, net of issuance costs ,Shares | shares 18,264,840                    
Percentage of no of share owned by shareholders   4.99%                  
July 2025 PIPE Financing | Warrant [Member]                      
Class of Stock [Line Items]                      
Share price | $ / shares $ 2.19                    
Proceeds from issuance of IPO $ 10,000,000                    
Purchase of warrant | shares 4,566,210                 4,566,210  
Proceeds from issuance of pre-funded warrants $ 50,000,000                    
Proceeds from Issuance Initial Public Offering $ 10,000,000                    
October 2025 Public Offering                      
Class of Stock [Line Items]                      
Common stock issuance price, cash     $ 139,100,000                
Underwriting discounts and commissions     Under the terms of the October Underwriting Agreement, the Company granted to the underwriters an option exercisable for 30 days to purchase up to an additional 3,558,750 common stock at the public offering price, less underwriting discounts and commissions. Pursuant to the October Underwriting Agreement, the underwriters exercised the option to purchase the full amount of the additional 3,558,750 common stock.                
October 2025 Public Offering | Common Stock [Member]                      
Class of Stock [Line Items]                      
Share price | $ / shares     $ 5.48                
Issuance of common shares, net of issuance costs ,Shares | shares     23,725,000                
Apeiron [Member]                      
Class of Stock [Line Items]                      
Share price | $ / shares       $ 2.19 $ 2.1            
Issuance of common shares, net of issuance costs ,Shares | shares       8,675,799 10,835,718