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Common Stock Financing Activities (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands |  |  | 1 Months Ended | 3 Months Ended | 9 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | --- | --- | ---
Mar. 27, 2024 | Mar. 25, 2024 | Nov. 30, 2023 | May 31, 2021 | Sep. 30, 2024 | Sep. 30, 2024 | Sep. 30, 2023 | Dec. 31, 2023 | Mar. 31, 2024
Shares issued |  |  |  |  |  |  |  |  |
Stock offering costs |  |  |  |  |  | $ 295 | $ 739 |  |
Net proceeds issuance of common stock |  |  |  |  |  | $ 32,687 | $ 24,657 |  |
Common stock, par value (in dollars per share) |  |  |  |  | $ 0.001 | $ 0.001 |  | $ 0.001 |
Warrants to purchase common stock (in shares) |  |  |  |  | 8,620 | 8,620 |  |  |
Proceeds from issuance of common stock and warrant | $ 25,000 |  |  |  | $ 467 |  |  |  |
Warrants 2024, Pre Funded Warrants |  |  |  |  |  |  |  |  |
Shares issued |  |  |  |  |  |  |  |  |
Warrants to purchase common stock (in shares) |  |  |  |  |  |  |  |  | 5,565
Exercise price (in dollars per share) |  |  |  |  |  |  |  |  | $ 0.001
Warrants exercised |  |  |  |  | 1,705 | 5,565 |  |  |
Proceeds from warrants |  |  |  |  | $ 2 | $ 6 |  |  |
Jefferies Sale Agreement |  |  |  |  |  |  |  |  |
Shares issued |  |  |  |  |  |  |  |  |
Maximum value shares to be issued |  |  | $ 150,000 | $ 100,000 |  |  |  |  |
Number of shares issued |  |  |  |  | 361 | 3,847 |  | 1,408 |
Gross proceeds issuance of common stock |  |  |  |  | $ 467 | $ 7,682 |  | $ 27,032 |
Stock offering costs |  |  |  |  | 14 | 231 |  | 811 |
Net proceeds issuance of common stock |  |  |  |  | $ 453 | $ 7,451 |  | $ 26,221 |
Registered direct offering |  |  |  |  |  |  |  |  |
Shares issued |  |  |  |  |  |  |  |  |
Number of shares issued |  | 3,055 |  |  |  |  |  |  |
Common stock, par value (in dollars per share) |  | $ 0.001 |  |  |  |  |  |  |
Offering price (in dollars per share) |  | $ 2.901 |  |  |  |  |  |  |
Proceeds from issuance of common stock and warrant | $ 25,000 |  |  |  |  |  |  |  |
Registered direct offering | Warrants 2024, Accompanying Warrants |  |  |  |  |  |  |  |  |
Shares issued |  |  |  |  |  |  |  |  |
Warrants to purchase common stock (in shares) |  | 3,055 |  |  |  |  |  |  |
Offering price (in dollars per share) |  | $ 2.900 |  |  |  |  |  |  |
Exercise price (in dollars per share) |  | $ 3.20 |  |  |  |  |  |  |
Registered direct offering | Warrants 2024, Pre Funded Warrants |  |  |  |  |  |  |  |  |
Shares issued |  |  |  |  |  |  |  |  |
Warrants to purchase common stock (in shares) |  | 5,565 |  |  |  |  |  |  |
Exercise price (in dollars per share) |  | $ 0.001 |  |  |  |  |  |  |

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