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Fair Value Measurements - Inputs (Details) $ / shares in Units, shares in Thousands, $ in Thousands |  |  |  | 3 Months Ended |  |  |  |  |  |
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Mar. 18, 2025 USD ($) | Nov. 21, 2024 USD ($) $ / shares shares | Dec. 05, 2023 USD ($) $ / shares Y shares | Mar. 31, 2025 USD ($) $ / shares Y shares | Mar. 03, 2025 USD ($) $ / shares Y shares | Dec. 31, 2024 USD ($) | Nov. 25, 2024 $ / shares shares | Mar. 25, 2024 $ / shares | Mar. 20, 2024 USD ($) $ / shares Y shares | Apr. 19, 2022 USD ($) $ / shares Y shares
Fair value inputs |  |  |  |  |  |  |  |  |  |
Warrant derivative liability | $ |  |  |  | $ 3,274 |  | $ 6,633 |  |  |  |
Warrants outstanding (in shares) | shares |  |  |  | 5,792 |  |  |  |  |  |
Credit Agreement |  |  |  |  |  |  |  |  |  |
Fair value inputs |  |  |  |  |  |  |  |  |  |
Fair value debt | $ |  |  |  | $ 96,403 |  | $ 94,204 |  |  |  |
OnkosXcel Warrants |  |  |  |  |  |  |  |  |  |
Fair value inputs |  |  |  |  |  |  |  |  |  |
Warrants to purchase common stock (in shares) | shares |  |  |  |  |  |  |  |  |  | 175
OnkosXcel Warrants | Volatility (annual) |  |  |  |  |  |  |  |  |  |
Fair value inputs |  |  |  |  |  |  |  |  |  |
Derivative liability input |  |  |  | 1.15 |  |  |  |  |  |
March 2025 Option Warrants |  |  |  |  |  |  |  |  |  |
Fair value inputs |  |  |  |  |  |  |  |  |  |
Increase (decrease) carrying value | $ | $ 369 |  |  | $ 369 |  |  |  |  |  |
Warrant derivative liability | $ |  |  |  |  | $ 369 |  |  |  |  |
Warrants to purchase common stock (in shares) | shares |  |  |  |  | 4,000 |  |  |  |  |
Warrants outstanding value | $ |  |  |  | $ 0 |  |  |  |  |  |
March 2025 Option Warrants | Strike price |  |  |  |  |  |  |  |  |  |
Fair value inputs |  |  |  |  |  |  |  |  |  |
Derivative liability input |  |  |  | 3.5 |  |  |  |  |  |
March 2025 Option Warrants | Share price input |  |  |  |  |  |  |  |  |  |
Fair value inputs |  |  |  |  |  |  |  |  |  |
Derivative liability input |  |  |  | 2.7 |  |  |  |  |  |
March 2025 Option Warrants | Volatility (annual) |  |  |  |  |  |  |  |  |  |
Fair value inputs |  |  |  |  |  |  |  |  |  |
Derivative liability input |  |  |  | 0.392 |  |  |  |  |  |
March 2025 Option Warrants | Term |  |  |  |  |  |  |  |  |  |
Fair value inputs |  |  |  |  |  |  |  |  |  |
Derivative liability input | Y |  |  |  | 0.04 |  |  |  |  |  |
March 2025 Option Warrants | Risk-free rate |  |  |  |  |  |  |  |  |  |
Fair value inputs |  |  |  |  |  |  |  |  |  |
Derivative liability input |  |  |  | 0.0439 |  |  |  |  |  |
March 2025 Accompanying Warrants |  |  |  |  |  |  |  |  |  |
Fair value inputs |  |  |  |  |  |  |  |  |  |
Fair value warrant classified as equity | $ |  |  |  | $ 1,402 |  |  |  |  |  |
Exercise price (in dollars per share) |  |  |  | $ 4.2 |  |  |  |  |  |
Gain (loss) on derivatives | $ |  |  |  | $ 1,429 |  |  |  |  |  |
Warrants outstanding (in shares) | shares |  |  |  | 4,000 |  |  |  |  |  |
March 2025 Accompanying Warrants | Strike price |  |  |  |  |  |  |  |  |  |
Fair value inputs |  |  |  |  |  |  |  |  |  |
Derivative liability input |  |  |  | 4.2 | 4.2 |  |  |  |  |
March 2025 Accompanying Warrants | Share price input |  |  |  |  |  |  |  |  |  |
Fair value inputs |  |  |  |  |  |  |  |  |  |
Derivative liability input |  |  |  | 2.03 | 2.7 |  |  |  |  |
March 2025 Accompanying Warrants | Volatility (annual) |  |  |  |  |  |  |  |  |  |
Fair value inputs |  |  |  |  |  |  |  |  |  |
Derivative liability input |  |  |  | 0.385 | 0.392 |  |  |  |  |
March 2025 Accompanying Warrants | Term |  |  |  |  |  |  |  |  |  |
Fair value inputs |  |  |  |  |  |  |  |  |  |
Derivative liability input | Y |  |  |  | 4.9 | 5 |  |  |  |  |
March 2025 Accompanying Warrants | Risk-free rate |  |  |  |  |  |  |  |  |  |
Fair value inputs |  |  |  |  |  |  |  |  |  |
Derivative liability input |  |  |  | 0.0396 | 0.0401 |  |  |  |  |
Closing Date Warrants |  |  |  |  |  |  |  |  |  |
Fair value inputs |  |  |  |  |  |  |  |  |  |
Fair value warrant classified as equity | $ |  | $ 164 | $ 802 |  |  |  |  |  | $ 105 | $ 548
Exercise price (in dollars per share) |  | $ 7.68 | $ 58.3232 | $ 7.68 |  |  |  |  | $ 49.1568 | $ 320.64
Warrants to purchase common stock (in shares) | shares |  |  |  |  |  |  |  |  |  | 17
Repricing of stock purchase warrants | $ |  | $ 59 | $ 254 |  |  |  |  |  |  |
Warrants outstanding value | $ |  |  |  |  |  |  |  |  |  | $ 3,245
Warrants outstanding (in shares) | shares |  |  |  | 17 |  |  |  |  |  |
Closing Date Warrants | Strike price |  |  |  |  |  |  |  |  |  |
Fair value inputs |  |  |  |  |  |  |  |  |  |
Derivative liability input |  |  |  |  |  |  |  |  |  | 320.64
Closing Date Warrants | Share price input |  |  |  |  |  |  |  |  |  |
Fair value inputs |  |  |  |  |  |  |  |  |  |
Derivative liability input |  |  |  |  |  |  |  |  |  | 238.88
Closing Date Warrants | Volatility (annual) |  |  |  |  |  |  |  |  |  |
Fair value inputs |  |  |  |  |  |  |  |  |  |
Derivative liability input |  |  |  |  |  |  |  |  |  | 0.95
Closing Date Warrants | Term |  |  |  |  |  |  |  |  |  |
Fair value inputs |  |  |  |  |  |  |  |  |  |
Derivative liability input | Y |  |  |  |  |  |  |  |  |  | 7
Closing Date Warrants | Risk-free rate |  |  |  |  |  |  |  |  |  |
Fair value inputs |  |  |  |  |  |  |  |  |  |
Derivative liability input |  |  |  |  |  |  |  |  |  | 0.0295
2023 Warrants |  |  |  |  |  |  |  |  |  |
Fair value inputs |  |  |  |  |  |  |  |  |  |
Fair value warrant classified as equity | $ |  |  | $ 200 |  |  |  |  |  |  |
Exercise price (in dollars per share) |  |  | $ 58.3232 | $ 7.68 |  |  |  |  |  |
Warrants to purchase common stock (in shares) | shares |  |  | 4 |  |  |  |  |  |  |
Warrants outstanding (in shares) | shares |  |  |  | 4 |  |  |  |  |  |
2023 Warrants | Strike price |  |  |  |  |  |  |  |  |  |
Fair value inputs |  |  |  |  |  |  |  |  |  |
Derivative liability input |  |  | 58.3232 |  |  |  |  |  |  |
2023 Warrants | Share price input |  |  |  |  |  |  |  |  |  |
Fair value inputs |  |  |  |  |  |  |  |  |  |
Derivative liability input |  |  | 59.36 |  |  |  |  |  |  |
2023 Warrants | Volatility (annual) |  |  |  |  |  |  |  |  |  |
Fair value inputs |  |  |  |  |  |  |  |  |  |
Derivative liability input |  |  | 0.99 |  |  |  |  |  |  |
2023 Warrants | Term |  |  |  |  |  |  |  |  |  |
Fair value inputs |  |  |  |  |  |  |  |  |  |
Derivative liability input | Y |  |  | 5.4 |  |  |  |  |  |  |
2023 Warrants | Risk-free rate |  |  |  |  |  |  |  |  |  |
Fair value inputs |  |  |  |  |  |  |  |  |  |
Derivative liability input |  |  | 0.0414 |  |  |  |  |  |  |
2024 Warrants |  |  |  |  |  |  |  |  |  |
Fair value inputs |  |  |  |  |  |  |  |  |  |
Fair value warrant classified as equity | $ |  |  |  |  |  |  |  |  | $ 224 |
Exercise price (in dollars per share) |  |  |  |  |  |  |  |  | $ 49.1568 |
Warrants to purchase common stock (in shares) | shares |  |  |  |  |  |  |  |  | 6 |
2024 Warrants | Strike price |  |  |  |  |  |  |  |  |  |
Fair value inputs |  |  |  |  |  |  |  |  |  |
Derivative liability input |  |  |  |  |  |  |  |  | 49.1568 |
2024 Warrants | Share price input |  |  |  |  |  |  |  |  |  |
Fair value inputs |  |  |  |  |  |  |  |  |  |
Derivative liability input |  |  |  |  |  |  |  |  | 44.48 |
2024 Warrants | Volatility (annual) |  |  |  |  |  |  |  |  |  |
Fair value inputs |  |  |  |  |  |  |  |  |  |
Derivative liability input |  |  |  |  |  |  |  |  | 1.122 |
2024 Warrants | Term |  |  |  |  |  |  |  |  |  |
Fair value inputs |  |  |  |  |  |  |  |  |  |
Derivative liability input | Y |  |  |  |  |  |  |  |  | 5 |
2024 Warrants | Risk-free rate |  |  |  |  |  |  |  |  |  |
Fair value inputs |  |  |  |  |  |  |  |  |  |
Derivative liability input |  |  |  |  |  |  |  |  | 0.0425 |
March 2024 Accompanying Warrants |  |  |  |  |  |  |  |  |  |
Fair value inputs |  |  |  |  |  |  |  |  |  |
Fair value warrant classified as equity | $ |  |  |  | $ 641 |  |  |  |  |  |
Exercise price (in dollars per share) |  | $ 9.136 |  |  |  |  |  | $ 51.2 |  |
Warrant derivative liability | $ |  |  |  | 641 |  |  |  |  |  |
Gain (loss) on derivatives | $ |  |  |  | $ 1,679 |  |  |  |  |  |
Warrants outstanding (in shares) | shares |  |  |  |  |  |  | 539 |  |  |
March 2024 Accompanying Warrants | Strike price |  |  |  |  |  |  |  |  |  |
Fair value inputs |  |  |  |  |  |  |  |  |  |
Derivative liability input |  |  |  | 2.03 |  |  |  |  |  |
March 2024 Accompanying Warrants | Volatility (annual) |  |  |  |  |  |  |  |  |  |
Fair value inputs |  |  |  |  |  |  |  |  |  |
Derivative liability input |  |  |  | 1.202 |  |  |  |  |  |
March 2024 Accompanying Warrants | Term |  |  |  |  |  |  |  |  |  |
Fair value inputs |  |  |  |  |  |  |  |  |  |
Derivative liability input | Y |  |  |  | 4 |  |  |  |  |  |
March 2024 Accompanying Warrants | Risk-free rate |  |  |  |  |  |  |  |  |  |
Fair value inputs |  |  |  |  |  |  |  |  |  |
Derivative liability input |  |  |  | 0.0393 |  |  |  |  |  |
March 2024 Accompanying Warrants, Strike Price Amended |  |  |  |  |  |  |  |  |  |
Fair value inputs |  |  |  |  |  |  |  |  |  |
Exercise price (in dollars per share) |  |  |  | $ 9.136 |  |  |  |  |  |
Warrants outstanding (in shares) | shares |  | 534 |  | 534 |  |  | 534 |  |  |
March 2024 Accompanying Warrants, Strike Price Amended | Strike price |  |  |  |  |  |  |  |  |  |
Fair value inputs |  |  |  |  |  |  |  |  |  |
Derivative liability input |  |  |  | 9.136 |  |  |  |  |  |
Exercise price (in dollars per share) |  |  |  |  |  |  | $ 9.136 |  |  |
March 2024 Accompanying Warrants, Strike Price Not Amended |  |  |  |  |  |  |  |  |  |
Fair value inputs |  |  |  |  |  |  |  |  |  |
Exercise price (in dollars per share) |  |  |  | $ 51.2 |  |  |  |  |  |
Warrants outstanding (in shares) | shares |  |  |  | 5 |  |  |  |  |  |
March 2024 Accompanying Warrants, Strike Price Not Amended | Strike price |  |  |  |  |  |  |  |  |  |
Fair value inputs |  |  |  |  |  |  |  |  |  |
Derivative liability input |  |  |  | 51.2 |  |  |  |  |  |
November 2024 Accompanying Warrants |  |  |  |  |  |  |  |  |  |
Fair value inputs |  |  |  |  |  |  |  |  |  |
Fair value warrant classified as equity | $ |  |  |  | $ 1,193 |  |  |  |  |  |
Warrant derivative liability | $ |  |  |  | 1,193 |  |  |  |  |  |
Gain (loss) on derivatives | $ |  |  |  | $ 3,080 |  |  |  |  |  |
November 2024 Accompanying Warrants | Strike price |  |  |  |  |  |  |  |  |  |
Fair value inputs |  |  |  |  |  |  |  |  |  |
Exercise price (in dollars per share) |  |  |  | $ 7.68 |  |  |  |  |  |
November 2024 Accompanying Warrants | Share price input |  |  |  |  |  |  |  |  |  |
Fair value inputs |  |  |  |  |  |  |  |  |  |
Derivative liability input |  |  |  | 2.03 |  |  |  |  |  |
November 2024 Accompanying Warrants | Volatility (annual) |  |  |  |  |  |  |  |  |  |
Fair value inputs |  |  |  |  |  |  |  |  |  |
Derivative liability input |  |  |  | 1.153 |  |  |  |  |  |
November 2024 Accompanying Warrants | Term |  |  |  |  |  |  |  |  |  |
Fair value inputs |  |  |  |  |  |  |  |  |  |
Derivative liability input | Y |  |  |  | 4.7 |  |  |  |  |  |
November 2024 Accompanying Warrants | Risk-free rate |  |  |  |  |  |  |  |  |  |
Fair value inputs |  |  |  |  |  |  |  |  |  |
Derivative liability input |  |  |  | 0.0394 |  |  |  |  |  |

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