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Common Stock - Additional Information (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 9 Months Ended 12 Months Ended
Jul. 14, 2025
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Dec. 31, 2024
Dec. 31, 2023
Jan. 14, 2025
Class of Stock [Line Items]                
Common shares, shares authorized (in shares)   600,000,000   600,000,000   136,562,809 175,095,000  
Common stock, shares issued (in shares)   106,754,588   106,754,588   48,376,052 17,454,353  
Common stock, shares outstanding (in shares)   106,754,588   106,754,588   48,376,052 17,454,353 98,818,874
Aggregate purchase price   $ 2,238   $ 2,538        
Price of common stock           $ 0.88 $ 0.25  
Consideration paid   $ 0 $ 77 12,043 $ 163 $ 217 $ 105  
Consideration paid in cash       $ 200        
B. Riley | Committed Equity Facility                
Class of Stock [Line Items]                
Aggregate number of shares issued       8,410,321        
B. Riley | Registration Rights Agreement | Committed Equity Facility                
Class of Stock [Line Items]                
Aggregate purchase price $ 50,000              
Percentage of common stock shares issued 19.99%              
Price of common stock   $ 3.45   $ 3.45        
Common stock permit subsequent resale   20,326,158   20,326,158        
Percentage of common stock to sell without prior stockholder approval   4.99%   4.99%        
Consideration paid       $ 400        
Consideration paid in cash       $ 200        
Underwriting discount percentage   0.50%   0.50%        
Fair value of issued shares   $ 200   $ 200        
Consideration paid in shares       83,353        
Number of shares sold       5,673,734        
Net proceed from sale of shares       $ 20,000        
Unused capacity under committed equity facility   $ 30,000   $ 30,000        
Additional shares expect to sell   8,409,939   8,409,939        
Remaining registered shares available for purchase   14,652,582   14,652,582        
Commission expense   $ 600 $ 0 $ 600 $ 0      
B. Riley | Registration Rights Agreement | Purchase                
Class of Stock [Line Items]                
Price of common stock $ 0.97              
VWAP as commission 0.03              
Minimum | B. Riley | Registration Rights Agreement | Committed Equity Facility                
Class of Stock [Line Items]                
Price of common stock $ 1              
Unused capacity under committed equity facility   $ 3.14   $ 3.14        
Maximum | B. Riley | Registration Rights Agreement | Committed Equity Facility                
Class of Stock [Line Items]                
Aggregate purchase price $ 50,000     $ 50,000        
Aggregate number of shares issued 20,326,316              
Unused capacity under committed equity facility   $ 4.07   $ 4.07        
Maximum | B. Riley | Registration Rights Agreement | Purchase                
Class of Stock [Line Items]                
Aggregate number of shares issued 1,000,000              
Percentage of common stock shares issued 25.00%