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Preferred Stock - Schedule of Series F Preferred Stock Transactions (Details) - USD ($) $ / shares in Units, $ in Thousands |  |  | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Mar. 31, 2023 | Mar. 30, 2023 | Mar. 31, 2024 | Mar. 31, 2023 | Mar. 31, 2024 | Dec. 31, 2023 | Oct. 06, 2023 | Dec. 31, 2022
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Preferred stock, shares outstanding (in shares) |  |  | 1,008 |  | 1,008 | 1,930 |  |
Accrued dividends |  |  | $ 44 | $ 0 |  |  |  |
Weighted average conversion price (in dollars per share) | $ 1.71 |  |  | $ 1.71 |  |  | $ 0.2792 |
Common Stock |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Conversions of Series F Preferred Stock (in shares) |  |  | 3,602,000 |  |  | 14,102,000 |  |
Common shares issued in conversion (in shares) |  |  | 3,602,103 |  | 17,704,000 | 14,102,477 |  |
Series F Preferred Stock |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Number of shares issued (in shares) | 6,550 |  |  |  |  |  |  |
Preferred stock, shares outstanding (in shares) |  |  | 1,008 |  | 1,008 | 1,930 |  |
Preferred Stock Dividends | $ 0 |  | $ 94 | $ 0 | $ 94 | $ 132 |  |
Accrued dividends |  |  | 44 |  |  | 343 |  |
Conversions, preferred stock dividends |  |  | $ (82) |  |  | $ (211) |  |
Weighted average conversion price (in dollars per share) |  |  | $ 0.28 |  |  | $ 0.34 |  |
Weighted average conversion price (in dollars per share) |  | $ 1.71 | $ 0.33 |  | $ 0.33 |  |  |
Series F Preferred Stock | Private Placement |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Number of shares issued (in shares) |  | 6,550 |  |  |  |  |  |
Series F Preferred Stock | Preferred Stock |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Number of shares issued (in shares) |  |  |  | 6,550 |  |  |  |
Conversions of Series F Preferred Stock (in shares) |  |  | (922) |  |  | (4,620) |  |
Preferred stock, shares outstanding (in shares) | 6,550 |  | 1,008 | 6,550 | 1,008 | 1,930 |  | 0
Preferred Stock Dividends |  |  | $ 82 |  | $ 82 |  |  |

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