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Condensed Consolidated Statements of Stockholders’ Deficit (unaudited) - USD ($) $ in Thousands | Total | Preferred Stock | Common Stock | Treasury Stock | Additional paid-in capital | Accumulated deficit
--- | --- | --- | --- | --- | --- | ---
Preferred stock, beginning balance (in shares) at Dec. 31, 2022 |  | 0 |  |  |  |
Beginning balance at Dec. 31, 2022 | $ 4,052 | $ 0 | $ 17 | $ 0 | $ 9,078 | $ (5,043)
Common stock, beginning balance (in shares) at Dec. 31, 2022 |  |  | 173,524,360 |  |  |
Treasury stock, beginning balance (in shares) at Dec. 31, 2022 |  |  |  | 0 |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Net loss | (32,899) |  |  |  |  | (32,899)
Comprehensive loss | (32,899) |  |  |  |  | (32,899)
Interest on the promissory note to a member | (282) |  |  |  | (282) |
Repayment of promissory note to a member | 18,833 |  |  |  | 18,833 |
Payment of interest on promissory note to a member | 520 |  |  |  | 520 |
Stock-based compensation | 3,126 |  |  |  | 3,126 |
Vested restricted stock units (in shares) |  |  | 21,875 |  |  |
Exercise of stock options (in shares) |  |  | 296,477 |  |  |
Exercise of stock options | 1,010 |  |  |  | 1,010 |
Preferred stock, ending balance (in shares) at Mar. 31, 2023 |  | 0 |  |  |  |
Ending balance at Mar. 31, 2023 | $ (5,640) | $ 0 | $ 17 | $ 0 | 32,285 | (37,942)
Common stock, ending balance (in shares) at Mar. 31, 2023 |  |  | 173,842,712 |  |  |
Treasury stock, ending balance (in shares) at Mar. 31, 2023 |  |  |  | 0 |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Common stock, par value (in USD per share) |  |  | $ 0.0001 |  |  |
Preferred stock, par value (in USD per share) |  | $ 0.0001 |  |  |  |
Common stock, par value (in USD per share) | $ 0.0001 |  |  |  |  |
Preferred stock, par value (in USD per share) | $ 0.0001 |  |  |  |  |
Preferred stock, beginning balance (in shares) at Dec. 31, 2023 | 0 | 0 |  |  |  |
Beginning balance at Dec. 31, 2023 | $ (18,292) | $ 0 | $ 18 | $ (2,154) | 44,655 | (60,811)
Common stock, beginning balance (in shares) at Dec. 31, 2023 | 175,020,471 |  | 175,377,711 |  |  |
Treasury stock, beginning balance (in shares) at Dec. 31, 2023 |  |  |  | 357,240 |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Net loss | $ (9,406) |  |  |  |  | (9,406)
Comprehensive loss | (9,406) |  |  |  |  | (9,406)
Stock-based compensation | $ 6,259 |  |  |  | 6,259 |
Vested restricted stock units (in shares) |  |  | 363,793 |  |  |
Exercise of stock options (in shares) | 164,295 |  | 164,295 |  |  |
Exercise of stock options | $ 916 |  |  |  | 916 |
Repurchase of common stock for net settlement of equity awards (in shares) |  |  |  | 157,276 |  |
Repurchase of common stock for net settlement of equity awards | $ (1,494) |  |  | $ (1,494) |  |
Preferred stock, ending balance (in shares) at Mar. 31, 2024 | 0 | 0 |  |  |  |
Ending balance at Mar. 31, 2024 | $ (22,017) | $ 0 | $ 18 | $ (3,648) | $ 51,830 | $ (70,217)
Common stock, ending balance (in shares) at Mar. 31, 2024 | 175,391,283 |  | 175,905,799 |  |  |
Treasury stock, ending balance (in shares) at Mar. 31, 2024 |  |  |  | 514,516 |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Common stock, par value (in USD per share) | $ 0.0001 |  | $ 0.0001 |  |  |
Preferred stock, par value (in USD per share) | $ 0.0001 | $ 0.0001 |  |  |  |

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