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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 | (6,287) |  |  |  |  |  |  |  |  |
Balance at Jun. 30, 2023 | 2,662 |  |  |  |  | $ 3 |  | 476,131 |  | (473,472)
Balance (in shares) at Jun. 30, 2023 |  |  | 1,952 |  |  | 2,879,620 |  |  |  |
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 |  |  |  |
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 | (6,201) |  |  |  |  |  |  |  |  |
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) |  |  |
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) |  |  |

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