v3.26.1
Organization - Additional Information (Details) - USD ($)
$ in Thousands
Mar. 31, 2026
Dec. 31, 2025
Mar. 31, 2025
Dec. 31, 2024
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]        
Cash, cash equivalents and restricted cash $ 354 $ 1,385 $ 319 $ 1,091
Accumulated deficit $ 925,628 $ 924,622    
Common stock, shares outstanding 2,378,383 2,349,480    
Common stock, shares authorized 50,000,000 50,000,000    
Minimum required amount of stockholder equity   $ 2,500    
Total stockholders' equity $ 1,288 2,153 1,058 2,063
2020 Equity Incentive Plan [Member]        
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]        
Common stock, shares authorized 955,333      
Common Stock [Member]        
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]        
Common stock, shares outstanding 2,378,383      
Common stock reserved for future issuance 327,098      
Total stockholders' equity $ 2 $ 2 $ 2 $ 2
Series A - 1 Preferred Stock [Member]        
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]        
Common stock, shares outstanding 500      
Series A - 2 Preferred Stock [Member]        
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]        
Common stock, shares outstanding 850