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Consolidated Statements of Stockholders' Equity - USD ($)
shares in Thousands
Preferred Stock [Member]
Series A Preferred Stock [Member]
Common Stock [Member]
Additional Paid-in Capital [Member]
Retained Earnings [Member]
Series A Preferred Stock [Member]
Total
Balance at Dec. 31, 2022 $ 1,000 $ 26,000 $ 177,377,000 $ (165,297,000)   $ 12,107,000
Balance, shares at Dec. 31, 2022 156 5,127        
Issuance of common stock in connection with Exacis asset acquisition 208,000   208,000
Issuance of common stock in connection with Exacis asset acquisition, shares   69        
Issuance of common stock related to stock purchase agreement with Lincoln Park Capital Fund, LLC, net $ 1,000 579,000   580,000
Issuance of common stock related to stock purchase agreement with Lincoln Park Capital Fund, LLC, net, shares   214        
Issuance of warrants in connection with convertible notes financing 9,014,000   9,014,000
Repricing of warrants in connection with convertible notes financing 766,000   766,000
Cash dividends to Series A preferred stockholders (16,000) $ (16,000) (16,000)
Stock-based compensation 1,242,000   1,242,000
Net loss (21,668,000)   (21,668,000)
Balance at Dec. 31, 2023 $ 1,000 $ 27,000 189,186,000 (186,981,000)   2,233,000
Balance, shares at Dec. 31, 2023 156 5,410        
Cash dividends to Series A preferred stockholders         $ (8,000)  
Stock-based compensation 1,520,000   1,520,000
Net loss (44,539,000)   (44,539,000)
Issuance of note warrants 720,000   720,000
Fair value of forward sale contract pursuant to common stock offering 576,000   576,000
Reclassification of warrants to liability (11,244,000)   (11,244,000)
Issuance of common stock in exchange of convertible notes $ 142,000 31,045,000   31,187,000
Issuance of common stock in exchange of Convertible Notes, shares   28,351        
Issuance of common stock in exchange of warrants $ 50,000 10,895,000   10,945,000
Issuance of common stock in exchange of warrants, shares   9,951        
Issuance of common stock and prefunded warrants upon the conversion of Bridge Notes $ 31,000 9,247,000   9,278,000
Issuance of common stock and prefunded warrants upon the conversion of Bridge Notes, shares   6,244        
Issuance of common stock and prefunded warrants in connection with private placement, net $ 7,000 995,000   1,002,000
Issuance of common stock and prefunded warrants in connection with private placement, net, shares   1,402        
Issuance of common stock to consultant for services 23,000   23,000
Issuance of common stock to consultant for services, shares   17        
Issuance of common stock to Series A preferred stockholders in lieu of cash dividends 16,000 (16,000)  
Issuance of common stock to Series A preferred stockholders in lieu of cash dividends, shares   11        
Balance at Dec. 31, 2024 $ 1,000 $ 257,000 $ 232,979,000 $ (231,536,000)   $ 1,701,000
Balance, shares at Dec. 31, 2024 156 51,386