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Common Stock Financing Activities (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands |  |  | 1 Months Ended | 3 Months Ended | 6 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | --- | --- | ---
Mar. 27, 2024 | Mar. 25, 2024 | Nov. 30, 2023 | May 31, 2021 | Jun. 30, 2024 | Jun. 30, 2024 | Jun. 30, 2023 | Dec. 31, 2023 | Mar. 31, 2024
Shares issued |  |  |  |  |  |  |  |  |
Stock offering costs |  |  |  |  |  | $ 281 | $ 739 |  |
Net proceeds issuance of common stock |  |  |  |  |  | $ 32,219 | $ 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 |  |  |
Warrants 2024, Pre Funded Warrants |  |  |  |  |  |  |  |  |
Shares issued |  |  |  |  |  |  |  |  |
Warrants to purchase common stock (in shares) |  |  |  |  | 1,705 | 1,705 |  |  | 5,565
Exercise price (in dollars per share) |  |  |  |  |  |  |  |  | $ 0.001
Warrants exercised |  |  |  |  | 3,860 | 3,860 |  |  |
Value of warrants exercised |  |  |  |  | $ 4 | $ 4 |  |  |
Jefferies Sale Agreement |  |  |  |  |  |  |  |  |
Shares issued |  |  |  |  |  |  |  |  |
Maximum value shares to be issued |  |  | $ 150,000 | $ 100,000 |  |  |  |  |
Number of shares issued |  |  |  |  | 2,839 | 3,486 |  | 1,408 |
Gross proceeds issuance of common stock |  |  |  |  | $ 5,472 | $ 7,215 |  | $ 27,032 |
Stock offering costs |  |  |  |  | 164 | 216 |  | 811 |
Net proceeds issuance of common stock |  |  |  |  | $ 5,308 | $ 6,999 |  | $ 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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