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v3.25.0.1

Nature of the Business and Basis of Presentation (Details) $ / shares in Units, $ in Thousands |  |  | 1 Months Ended | 11 Months Ended |
--- | --- | --- | --- | --- | ---
Sep. 03, 2024 $ / shares | Apr. 03, 2024 USD ($) | Sep. 30, 2024 $ / shares shares | Dec. 31, 2024 USD ($) $ / shares shares | Feb. 06, 2024 $ / shares
Nature of the Business and Basis of Presentation [Line Items] |  |  |  |  |  |
Common stock, par value (in Dollars per share) | $ / shares |  |  |  |  | $ 0.001 | $ 0.001
Additional paid-in capital transaction costs (in Dollars) | $ |  |  | $ 20,500 |  |  |
Pre-funded warrants of common stock shares | shares |  |  |  |  | 5,522,207 |
Warrants exchange | shares |  |  |  |  | 9,664,208 |
Net loss (in Dollars) | $ |  |  |  |  | $ (83,724) |
Net cash operating activities (in Dollars) | $ |  |  |  |  | (57,837) |
Cash, cash equivalents, and marketable securities (in Dollars) | $ |  |  |  |  | 393,700 |
Pre-funded Warrants [Member] |  |  |  |  |  |
Nature of the Business and Basis of Presentation [Line Items] |  |  |  |  |  |
Aggregate gross proceeds (in Dollars) | $ |  |  |  |  | $ 188,700 |
Purchase price per share (in Dollars per share) | $ / shares |  |  |  |  | $ 22.999 |
Net of issuance costs (in Dollars) | $ |  |  |  |  | $ 11,900 |
Series B Preferred Stock [Member] |  |  |  |  |  |
Nature of the Business and Basis of Presentation [Line Items] |  |  |  |  |  |
Conversion ratio |  |  |  |  | 83:3332:1 |
Net loss (in Dollars) | $ | [1] |  |  |  | $ (16,769) |
Common Stock [Member] |  |  |  |  |  |
Nature of the Business and Basis of Presentation [Line Items] |  |  |  |  |  |
Investors shares | shares |  |  |  |  | 22,784,139 |
Exchange shares | shares |  |  |  |  | 4,764,032 |
Issuance of shares | shares |  |  |  |  | 2,722,207 |
Prefunded warrants to purchase an aggregate shares | shares |  |  |  |  | 680,000 |
Series A Non-Voting Convertible Preferred Stock [Member] |  |  |  |  |  |
Nature of the Business and Basis of Presentation [Line Items] |  |  |  |  |  |
Purchase price per share (in Dollars per share) | $ / shares |  |  |  |  | $ 23,000 |
Series A Preferred Stock [Member] |  |  |  |  |  |
Nature of the Business and Basis of Presentation [Line Items] |  |  |  |  |  |
Purchase price per share (in Dollars per share) | $ / shares |  |  |  | $ 23,000 |  |
Net loss (in Dollars) | $ | [2] |  |  |  | $ (1,918) |
Common Stock [Member] |  |  |  |  |  |
Nature of the Business and Basis of Presentation [Line Items] |  |  |  |  |  |
Net loss (in Dollars) | $ |  |  |  |  | $ (65,037) |
Common Stock [Member] | Series A Preferred Stock [Member] |  |  |  |  |  |
Nature of the Business and Basis of Presentation [Line Items] |  |  |  |  |  |
Convertible shares | shares |  |  |  |  | 1,000 |
Oruka Common Stock [Member] |  |  |  |  |  |
Nature of the Business and Basis of Presentation [Line Items] |  |  |  |  |  |
Reverse stock split |  | 1-for-12 |  |  |  |
Common stock, par value (in Dollars per share) | $ / shares |  | $ 0.001 |  |  |  |
Pre-Merger Oruka [Member] | Pre-funded Warrants [Member] |  |  |  |  |  |
Nature of the Business and Basis of Presentation [Line Items] |  |  |  |  |  |
Aggregate gross proceeds (in Dollars) | $ |  |  | 275,000 |  |  |
Proceeds from Issuance of convertible note (in Dollars) | $ |  |  | $ 25,000 |  |  |
Pre-Merger Oruka [Member] | Common Stock [Member] |  |  |  |  |  |
Nature of the Business and Basis of Presentation [Line Items] |  |  |  |  |  |
Exchange shares | shares |  |  |  |  | 39,873,706 |
ARCA common stock [Member] |  |  |  |  |  |
Nature of the Business and Basis of Presentation [Line Items] |  |  |  |  |  |
Exchange ratio |  |  |  |  | 6.8569 |
Oruka Series A Convertible Preferred Stock [Member] |  |  |  |  |  |
Nature of the Business and Basis of Presentation [Line Items] |  |  |  |  |  |
Common stock, par value (in Dollars per share) | $ / shares |  |  |  |  | $ 0.0001 |
Series A Non-Voting Convertible Preferred Stock [Member] |  |  |  |  |  |
Nature of the Business and Basis of Presentation [Line Items] |  |  |  |  |  |
Common stock, par value (in Dollars per share) | $ / shares |  |  |  |  | $ 0.001 |
PIPE Financing [Member] | Common Stock [Member] |  |  |  |  |  |
Nature of the Business and Basis of Presentation [Line Items] |  |  |  |  |  |
Aggregate of purchased shares | shares |  |  |  |  | 5,600,000 |
Purchase price per share (in Dollars per share) | $ / shares |  |  |  |  | $ 23 |
PIPE Financing [Member] | Series A Non-Voting Convertible Preferred Stock [Member] |  |  |  |  |  |
Nature of the Business and Basis of Presentation [Line Items] |  |  |  |  |  |
Common stock, par value (in Dollars per share) | $ / shares |  |  |  |  | $ 0.001 |
Aggregate shares | shares |  |  |  |  | 2,439 |
PIPE Financing [Member] | Series A Preferred Stock [Member] |  |  |  |  |  |
Nature of the Business and Basis of Presentation [Line Items] |  |  |  |  |  |
Exchange shares | shares |  |  |  | 2,439 |  |
[1] | The weighted-average number of shares of as-converted Company Series B Preferred Stock used in the loss allocation was 4,328,844 for the period from February 6, 2024 (inception) to December 31, 2024.
[2] | The weighted-average number of shares of as-converted Company Series A Preferred Stock used in the loss allocation was 495,191 for the period from February 6, 2024 (inception) to December 31, 2024.

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