Quarterly report [Sections 13 or 15(d)]

Convertible Redeemable Preferred Stock and Stockholders' Equity - May 2024 Issuances of Common Stock and Common Stock Warrants (Details)

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Convertible Redeemable Preferred Stock and Stockholders' Equity - May 2024 Issuances of Common Stock and Common Stock Warrants (Details)
 3 Months Ended
May 17, 2024
USD ($)
May 15, 2024
USD ($)
$ / shares
shares
May 13, 2024
$ / shares
shares
Sep. 30, 2024
USD ($)
item
shares
Jun. 30, 2024
USD ($)
item
shares
Sep. 30, 2025
shares
Dec. 31, 2024
shares
Convertible Redeemable Preferred Stock and Stockholders' Equity              
Aggregate shares issued upon exercise of warrants           1 1
Issuance of common stock to vendor (in shares)       100,000 136,203    
Number of vendors | item       1 2    
Issuance of common stock to vendor | $       $ 240,000 $ 360,000    
Maximum              
Convertible Redeemable Preferred Stock and Stockholders' Equity              
Service period of the shares       12 months 12 months    
Minimum              
Convertible Redeemable Preferred Stock and Stockholders' Equity              
Service period of the shares         6 months    
Initial May 2024 Registered Direct Offering and Concurrent Private Placement              
Convertible Redeemable Preferred Stock and Stockholders' Equity              
Gross proceeds | $   $ 2,600,000          
Placement agent fees and other offering expenses | $   $ 314,000          
Initial May 2024 Registered Direct Offering              
Convertible Redeemable Preferred Stock and Stockholders' Equity              
Aggregate share issued     785,000        
Price per share | $ / shares     $ 3.31        
Initial May 2024 Concurrent Private Placement              
Convertible Redeemable Preferred Stock and Stockholders' Equity              
Aggregate shares issued upon exercise of warrants     785,000        
Warrants exercise price (in dollar per share) | $ / shares     $ 3.18        
Second May 2024 Registered Direct Offering and Concurrent Private Placement              
Convertible Redeemable Preferred Stock and Stockholders' Equity              
Gross proceeds | $ $ 2,400,000            
Placement agent fees and other offering expenses | $ $ 290,000            
Second May 2024 Registered Direct Offering              
Convertible Redeemable Preferred Stock and Stockholders' Equity              
Aggregate share issued   675,000          
Price per share | $ / shares   $ 3.61          
Second May 2024 Concurrent Private Placement              
Convertible Redeemable Preferred Stock and Stockholders' Equity              
Aggregate shares issued upon exercise of warrants   675,000          
Warrants exercise price (in dollar per share) | $ / shares   $ 3.48