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Option Agreements (Details) - USD ($) $ in Millions |  |  |  | 1 Months Ended | 3 Months Ended | 8 Months Ended
--- | --- | --- | --- | --- | --- | ---
Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023 | Mar. 31, 2024 | Sep. 30, 2024 | Sep. 30, 2024
Paragon Option Agreements [Line Items] |  |  |  |  |  |
Initiation fee |  |  |  |  |  | $ 0.8
Development costs, percentage |  |  |  |  |  | 50.00%
Research and development expenses |  |  |  |  | $ 3.8 | $ 6.6
Development costs |  |  | $ 3.3 |  |  |
Research initiation fee |  |  |  |  | 0.8 | 0.8
Accounts payable and other current liabilities |  |  |  |  | 3.8 | 3.8
Expenses |  |  |  |  | 13.4 | 33.8
Clinical Development Milestones [Member] |  |  |  |  |  |
Paragon Option Agreements [Line Items] |  |  |  |  |  |
Non-refundable milestone payments |  |  |  | $ 12.0 |  |
Certain Regulatory Milestones [Member] |  |  |  |  |  |
Paragon Option Agreements [Line Items] |  |  |  |  |  |
Non-refundable milestone payments |  |  |  | $ 10.0 |  |
Related Party [Member] |  |  |  |  |  |
Paragon Option Agreements [Line Items] |  |  |  |  |  |
Accounts payable and other current liabilities |  |  |  |  | 2.3 | 2.3
Research and Development Expense [Member] | ORKA-001 [Member] |  |  |  |  |  |
Paragon Option Agreements [Line Items] |  |  |  |  |  |
Milestone payment |  |  |  |  | 1.5 |
Research and Development Expenses [Member] |  |  |  |  |  |
Paragon Option Agreements [Line Items] |  |  |  |  |  |
Research and development expenses |  |  |  |  | $ 0.8 | $ 13.2
Forecast [Member] |  |  |  |  |  |
Paragon Option Agreements [Line Items] |  |  |  |  |  |
Percentage of warrant purchase | 1.00% |  |  |  |  |
Forecast [Member] | ORKA-002 [Member] |  |  |  |  |  |
Paragon Option Agreements [Line Items] |  |  |  |  |  |
Percentage of warrant purchase |  | 1.00% |  |  |  |

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