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CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' DEFICIT (UNAUDITED) - USD ($)
$ in Thousands
Total
Series F Preferred Stock [Member]
Convertible Preferred Stock [Member]
Preferred Stock [Member]
Preferred Stock [Member]
Series F Preferred Stock [Member]
Common Stock [Member]
Treasury Stock [Member]
Additional Paid-in Capital [Member]
Additional Paid-in Capital [Member]
Series F Preferred Stock [Member]
Accumulated Deficit [Member]
Balance at Dec. 31, 2022 $ 6,445         $ 2   $ 473,628   $ (467,185)
Balance (in shares) at Dec. 31, 2022     1,952     2,240,092        
Stock-based compensation 140             140    
Sale and issuance of common stock, net 895 $ 1           895 $ 1  
Sale and issuance of common stock, net (in shares)         1 168,164        
Net loss (4,805)                 (4,805)
Balance at Mar. 31, 2023 2,676         $ 2   474,664   (471,990)
Balance (in shares) at Mar. 31, 2023     1,952 1   2,408,256        
Balance at Dec. 31, 2022 6,445         $ 2   473,628   (467,185)
Balance (in shares) at Dec. 31, 2022     1,952     2,240,092        
Net loss (9,506)                  
Balance at Sep. 30, 2023 2,622         $ 6   479,308   (476,691)
Balance (in shares) at Sep. 30, 2023     1,952     4,522,656        
Balance at Dec. 31, 2022 6,445         $ 2   473,628   (467,185)
Balance (in shares) at Dec. 31, 2022     1,952     2,240,092        
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 (78,559)      
Balance at Mar. 31, 2023 2,676         $ 2   474,664   (471,990)
Balance (in shares) at Mar. 31, 2023     1,952 1   2,408,256        
Redemption of Series F preferred stock (in shares)         (1)          
Stock-based compensation 140             140    
Sale and issuance of common stock, net 1,328         $ 1   1,327    
Sale and issuance of common stock, net (in shares)           472,674        
Fractional adjustment           (1,310)        
Net loss (1,482)                 (1,482)
Balance at Jun. 30, 2023 2,662         $ 3   476,131   (473,472)
Balance (in shares) at Jun. 30, 2023     1,952     2,879,620        
Stock-based compensation 148             148    
Sale and issuance of common stock, net 2,956         $ 2   2,954    
Sale and issuance of common stock, net (in shares)           1,589,655        
Issuance of common stock for in process research and development (in shares)           53,381        
Issuance of common stock for in process research and development 75             75    
Net loss (3,219)                 (3,219)
Balance at Sep. 30, 2023 2,622         $ 6   479,308   (476,691)
Balance (in shares) at Sep. 30, 2023     1,952     4,522,656        
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 (78,559)      
Stock-based compensation 146             146    
Purchase of treasury stock (374)           $ (374)      
Purchase of treasury stock (in Shares)             (179,866)      
Net loss (3,261)                 (3,261)
Balance at Mar. 31, 2024 (4,837)         $ 5 $ (500) 479,420   (483,762)
Balance (in shares) at Mar. 31, 2024     1,952     4,522,656 (258,425)      
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 (78,559)      
Net loss (9,075)                  
Balance at Sep. 30, 2024 (5,174)         $ 6 $ (500) 484,896   (489,576)
Balance (in shares) at Sep. 30, 2024     1,952     6,154,758 (258,425)      
Balance at Mar. 31, 2024 (4,837)         $ 5 $ (500) 479,420   (483,762)
Balance (in shares) at Mar. 31, 2024     1,952     4,522,656 (258,425)      
Stock-based compensation 151             151    
Sale and issuance of common stock, net 1         $ 1        
Sale and issuance of common stock, net (in shares)           1,439,988        
Net loss (2,940)                 (2,940)
Balance at Jun. 30, 2024 (7,625)         $ 6 $ (500) 479,571   (486,702)
Balance (in shares) at Jun. 30, 2024     1,952     5,962,644 (258,425)      
Stock-based compensation 125             125    
Reclass of warrants to equity 5,200             5,200    
Exercise of pre-funded warrants (in Shares)           192,114        
Net loss (2,874)                 (2,874)
Balance at Sep. 30, 2024 $ (5,174)         $ 6 $ (500) $ 484,896   $ (489,576)
Balance (in shares) at Sep. 30, 2024     1,952     6,154,758 (258,425)