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Stockholders' Deficit - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions | 1 Months Ended | 3 Months Ended | 9 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | ---
Jul. 31, 2025 | Mar. 31, 2025 | Oct. 31, 2024 | Feb. 29, 2024 | Sep. 30, 2025 | Sep. 30, 2025 | May 31, 2025 | Apr. 30, 2025 | Dec. 31, 2024
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Common stock authorized (in shares) |  |  |  |  | 68,343,750 | 68,343,750 | 68,343,750 | 34,171,875 | 34,171,875
Private Placement |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Unregistered warrants issued (in shares) | 3,076,921 | 8,316,882 |  |  |  |  |  |  |
Exercise price of warrants (in dollars per share) | $ 2.15 | $ 2.41 |  |  |  |  |  |  |
Class of warrant or right, expiration period | 5 years | 5 years |  |  |  |  |  |  |
Sale of equity, price per share (in dollars per share) | $ 2.275 | $ 2.41 | $ 5.045 |  |  |  |  |  |
Aggregate net proceeds from equity offering | $ 6.1 | $ 8.8 | $ 10.8 |  |  |  |  |  |
Private Placement | Unregistered Warrants |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Unregistered warrants issued (in shares) |  |  | 2,398,414 |  |  |  |  |  |
Exercise price of warrants (in dollars per share) |  |  | $ 4.92 |  |  |  |  |  |
Class of warrant or right, expiration period |  |  | 5 years |  |  |  |  |  |
Private Placement | Pre-Funded Unregistered Warrants |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Unregistered warrants issued (in shares) | 1,538,461 | 2,184,009 |  |  |  |  |  |  |
Private Placement | Pre Funded Warrants |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Exercise price of warrants (in dollars per share) | $ 0.01 |  |  |  | $ 0.01 | $ 0.01 |  |  |
Warrants, fair value | $ 1.8 | $ 2.4 |  |  |  |  |  |  |
Exercise of warrants, number of shares issued (in shares) |  |  |  |  | 487,000 | 709,255 |  |  |
Private Placement | Common Stock |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Number of shares sold (in shares) | 1,538,460 | 1,974,432 | 2,398,414 |  |  |  |  |  |
Purchase price share (in shares) | 1 | 1 | 1 |  |  |  |  |  |
October 2024 Offerings |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Common stock, fair value |  |  | $ 6.0 |  |  |  |  |  |
Warrants, fair value |  |  | $ 4.8 |  |  |  |  |  |
March 2025 Offerings |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Purchase price share (in shares) |  | 1 |  |  |  |  |  |  |
Common stock, fair value | $ 1.8 | $ 2.2 |  |  |  |  |  |  |
Warrants, fair value | $ 2.5 | $ 4.2 |  |  |  |  |  |  |
Registered Direct Offering |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Class of warrant or right, purchase price (in dollars per share) | $ 2.265 | $ 2.40 |  |  |  |  |  |  |
July 2025 Offerings |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Purchase price share (in shares) | 1 |  |  |  |  |  |  |  |
Cantor Fitzgerald & Co | Common Stock |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Sale of stock, maximum authorized amount |  |  |  | $ 100.0 |  |  |  |  |
Cantor Fitzgerald & Co | Common Stock | Private Placement |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Compensation fee |  |  |  | 3.00% |  |  |  |  |
Number of shares sold (in shares) |  |  |  |  |  | 0 |  |  |
Sale of stock remaining authorized amount |  |  |  |  | $ 98.8 | $ 98.8 |  |  |
Sale of stock, maximum public float |  |  |  |  | $ 75.0 | $ 75.0 |  |  |
Stock sale agreement, maximum percentage of public float |  |  |  |  | 33.00% | 33.00% |  |  |
Sale of stock, sale restriction period |  |  |  |  |  | 12 months |  |  |

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