v3.25.2
Summary of Significant Accounting Policies - Basis of Presentation and Going Concern (Details)
$ / shares in Units, $ in Thousands
3 Months Ended 6 Months Ended
May 07, 2025
USD ($)
$ / shares
shares
May 07, 2025
$ / shares
shares
May 07, 2025
vote
$ / shares
shares
May 07, 2025
business_day
$ / shares
shares
Jun. 30, 2025
USD ($)
$ / shares
Mar. 31, 2025
USD ($)
Jun. 30, 2024
USD ($)
Mar. 31, 2024
USD ($)
Jun. 30, 2025
USD ($)
$ / shares
Jun. 30, 2024
USD ($)
Dec. 31, 2024
USD ($)
$ / shares
Nov. 09, 2022
$ / shares
Summary of Significant Accounting Policies [Line Items]                        
Cash and cash equivalents         $ 37,367       $ 37,367   $ 43,499  
Accumulated deficit         (1,021,331)       (1,021,331)   $ (969,603)  
Cash used in operating activities                 (42,815) $ (42,942)    
Net loss         $ (32,499) $ (19,229) $ (27,799) $ (25,508) $ (51,728) $ (53,307)    
Common shares, par value (usd per share) | $ / shares         $ 0.0001       $ 0.0001   $ 0.0001  
Number of securities called by each warrant (in shares) | shares 780,000,000 780,000,000 780,000,000 780,000,000                
Class of warrant or right, exercise price of warrants or rights (usd per share) | $ / shares $ 0.0000001 $ 0.0000001 $ 0.0000001 $ 0.0000001               $ 0.01
Sale of stock price (usd per share) | $ / shares 0.05 0.05 0.05 0.05                
Convertible Note                        
Summary of Significant Accounting Policies [Line Items]                        
Common shares, par value (usd per share) | $ / shares 0.0001 0.0001 0.0001 0.0001                
Purchase Agreement                        
Summary of Significant Accounting Policies [Line Items]                        
Common shares, par value (usd per share) | $ / shares $ 0.0001 $ 0.0001 $ 0.0001 $ 0.0001                
Threshold, consummated period     45,000 45                
Purchase Agreement | Convertible Notes due 2029 | Convertible Note                        
Summary of Significant Accounting Policies [Line Items]                        
Debt converted amount $ 40,200                      
Series A Convertible Senior Preferred Stock | Purchase Agreement                        
Summary of Significant Accounting Policies [Line Items]                        
Shares issued in transaction (in shares) | shares   20,000,000                    
Preferred stock, par value (usd per share) | $ / shares $ 0.0001 $ 0.0001 $ 0.0001 $ 0.0001                
Purchase price $ 40,000                      
Sale of stock price (usd per share) | $ / shares $ 2.00 $ 2.00 $ 2.00 $ 2.00                
Common Stock | Purchase Agreement | Minimum                        
Summary of Significant Accounting Policies [Line Items]                        
Proceeds from issuance of common stock $ 35,000                      
Common Stock | Purchase Agreement | Maximum                        
Summary of Significant Accounting Policies [Line Items]                        
Proceeds from issuance of common stock $ 60,000                      
Common Stock | Purchase Agreement | Convertible Notes due 2029 | Convertible Note                        
Summary of Significant Accounting Policies [Line Items]                        
Debt converted shares issued (in shares) | shares   34,054,337