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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 |  |  |  |

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