v3.26.1
CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (DEFICIT) - USD ($)
$ in Thousands
Total
At The Market Offering
Common stock – Class A
Preferred Stock
Preferred stock – Series A
Common stock
Common stock – Class A
Common stock
Common stock – Class A
At The Market Offering
Additional paid-in capital
Additional paid-in capital
At The Market Offering
Accumulated deficit
Beginning balance (in shares) at Dec. 31, 2023       0          
Beginning balance at Dec. 31, 2023 $ 3,187     $ 0 $ 0   $ 376,234   $ (373,047)
Beginning balance (in shares) at Dec. 31, 2023         33,150        
Increase (Decrease) in Stockholders' Equity [Roll Forward]                  
Issuance of common stock upon vesting/ release of RSUs (in shares)         247        
Share repurchase related to Section 16 Officer tax coverage exchange (in shares)         (31)        
Share repurchase related to Section 16 Officer tax coverage exchange (4)           (4)    
Issuance of common stock and related warrants in registered offering, net of issuance costs (in shares)         21,770        
Issuance of common stock and related warrants in registered offering, net of issuance costs 11,591           11,591    
Issuance of pre-funded warrants and warrants in private placement, net of issuance costs 2,443           2,443    
Issuance of common stock upon exercise of pre-funded warrants (in shares)         64,945        
Issuance of common stock upon cashless exercise of warrants (in shares)         35,700        
Issuance of warrants with convertible notes 1,305           1,305    
Issuance of warrants with loan payable 121           121    
Issuance of warrants for debt issuance costs 2,000           2,000    
Stock-based compensation - stock options, RSAs, RSUs 6,493           6,493    
Net loss $ (34,946)               (34,946)
Ending balance (in shares) at Dec. 31, 2024 0     0          
Ending balance at Dec. 31, 2024 $ (7,810)     $ 0 $ 0   400,183   (407,993)
Ending balance (in shares) at Dec. 31, 2024     155,781   155,781        
Increase (Decrease) in Stockholders' Equity [Roll Forward]                  
Issuance of common stock upon vesting/ release of RSUs (in shares)         3,822        
Share repurchase related to Section 16 Officer tax coverage exchange (in shares)         (32)        
Share repurchase related to Section 16 Officer tax coverage exchange (1)           (1)    
Issuance of common stock and related warrants in registered offering, net of issuance costs (in shares)         54,903 757,193      
Issuance of common stock and related warrants in registered offering, net of issuance costs 7,775 $ 13,103         7,775 $ 13,103  
Issuance of common stock in connection with prior warrant inducement, net of issuance costs (in shares)         747,579        
Issuance of common stock in connection with warrant inducement, net of issuance costs 14,065           14,065    
Issuance of common stock upon exercise of pre-funded warrants (in shares)         186,766        
Issuance of common stock upon exercise of warrant liability (in shares)         37,815        
Issuance of common stock upon exercise of warrant liability 414           414    
Issuance of common stock and preferred stock in exchange for prepaid services (in shares)     14,737 673,408 26,749        
Issuance of common stock and preferred stock in exchange for prepaid services 10,672   $ 400       10,672    
Issuance of common stock upon conversion of preferred stock (in shares)       126,000 70,588        
Issuance of common stock and pre-funded warrants in settlement of accounts payable (in shares)         47,264        
Issuance of common stock and pre-funded warrants in settlement of accounts payable 1,646           1,646    
Issuance of common stock for convertible note principal and interest (in shares)         77,087        
Issuance of common stock for convertible note principal and interest 1,470           1,470    
Warrants issued in relation to the convertible debt extinguishments 2,299           2,299    
Issuance of warrants with convertible debt 572           572    
Issuance of warrants for debt issuance costs 130           130    
Deemed dividend upon downround of warrants 0           117   (117)
Common stock issued in connection with reverse stock split (in shares)         44        
Stock-based compensation - stock options, RSAs, RSUs 3,273           3,273    
Net loss $ (30,468)               (30,468)
Ending balance (in shares) at Dec. 31, 2025 547,408     547,408          
Ending balance at Dec. 31, 2025 $ 17,140     $ 0 $ 0   $ 455,718   $ (438,578)
Ending balance (in shares) at Dec. 31, 2025     2,165,559   2,165,559