v3.25.4
CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (DEFICIT) - USD ($)
$ in Thousands
Total
Convertible Preferred Stock [Member]
Common Stock [Member]
Treasury Stock [Member]
Additional Paid-in Capital [Member]
Accumulated Deficit [Member]
Lincoln Park Purchase Agreement
Lincoln Park Purchase Agreement
Common Stock [Member]
Lincoln Park Purchase Agreement
Additional Paid-in Capital [Member]
Balance at Dec. 31, 2023 $ (1,348)   $ 5 $ (126) $ 479,274 $ (480,501)      
Balance (in shares) at Dec. 31, 2023   1,952 4,522,656            
Balance, Treasury (in shares) at Dec. 31, 2023       (78,559)          
Issuance of common stock 1   $ 1            
Issuance of common stock (in shares)     1,439,988            
Exercise of pre-funded warrants (in Shares)     192,114            
Purchase of treasury stock (374)     $ (374)          
Purchase of treasury stock (in Shares)       (179,866)          
Share-based compensation 550       550        
Reclassification of warrants to equity 5,200       5,200        
Net loss (12,978)         (12,978)      
Balance at Dec. 31, 2024 $ (8,949)   $ 6 $ (500) 485,024 (493,479)      
Balance (in shares) at Dec. 31, 2024   1,952 6,154,758            
Balance, Treasury (in shares) at Dec. 31, 2024 258,425     (258,425)          
Issuance of common stock             $ 22,600 $ 50 $ 22,550
Issuance of common stock (in shares)               50,000,000  
Exercise of pre-funded warrants     $ 26   (26)        
Exercise of pre-funded warrants (in Shares)     26,185,731            
Share-based compensation $ 1,540       1,540        
Exercise or exchange of March 2025 Series A and B Warrants 858   $ 57   801        
Exercise or exchange of March 2025 Series A and B Warrants (in Shares)     57,018,872            
Exercise of Series B Warrants from May 2024 PIPE 882       882        
Exercise of Series B Warrants from May 2024 PIPE (in shares)     497,824            
Exchange of warrants for notes payable (3,694)       (3,694)        
Issuance of common stock, pre-funded warrants and warrants for debt repayment 5,373   $ 4   5,369        
Issuance of common stock, pre-funded warrants and warrants for debt repayment (in shares)     4,069,738            
Cancellation of common stock     $ (4)   (4)        
Cancellation of common stock (in Shares)     (5,211,835)            
Reclassification of warrants to equity 10,967       10,967        
Modification of warrants 6,801       6,801        
Investor fees pursuant to Support Letters (2,250)       (2,250)        
Liability to investors pursuant to Letter Agreement (7,746)       (7,746)        
Restricted stock unit vesting     219,193            
Net loss (22,386)         (22,386)      
Balance at Dec. 31, 2025 $ 3,996   $ 139 $ (500) $ 520,222 $ (515,865)      
Balance (in shares) at Dec. 31, 2025   1,952 138,934,281            
Balance, Treasury (in shares) at Dec. 31, 2025 258,425     (258,425)