Quarterly report [Sections 13 or 15(d)]

Equity Instruments - Common Stock Reserved for Issuance (Details)

v3.25.3
Equity Instruments - Common Stock Reserved for Issuance (Details) - shares
Sep. 30, 2025
Dec. 31, 2024
Class of Stock [Line Items]    
Shares of common stock reserved (in shares) 191,172 437,743
2021 Stock Option Plan [Member]    
Class of Stock [Line Items]    
Shares of common stock reserved (in shares) 0  
Common stock warrants    
Class of Stock [Line Items]    
Shares of common stock reserved (in shares) 36,892 366,946
Shares available for future grant under 2021 Equity Incentive Plan | 2021 Stock Option Plan [Member]    
Class of Stock [Line Items]    
Shares of common stock reserved (in shares) 0 46,456
Reserved for At-the-Market offering    
Class of Stock [Line Items]    
Shares of common stock reserved (in shares) 5,383 5,383
Reserved for employee stock purchase plan    
Class of Stock [Line Items]    
Shares of common stock reserved (in shares) 148,897 18,958