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Stock-Based Compensation - Restricted Stock Activity (Details) - Restricted Stock - $ / shares
9 Months Ended 12 Months Ended
Sep. 30, 2025
Dec. 31, 2024
Number of Units    
Outstanding, beginning balance (in shares) 46,697  
Awarded (in shares) 43,069  
Released (in shares) (17,879)  
Outstanding, ending balance (in shares) 71,887 46,697
Weighted- Average Grant Date Fair Value    
Outstanding, beginning balance (in usd per share) $ 7.56  
Awarded (in usd per shares) 2.93  
Released (in usd per share) 7.37  
Outstanding, ending balance (in usd per share) $ 4.83 $ 7.56
Weighted- Average Remaining Term in Years    
Beginning of year 2 years 1 month 2 days 2 years 2 months 8 days
End of year 2 years 1 month 2 days 2 years 2 months 8 days