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v3.24.3

Nature of the Business and Basis of Presentation (Details) |  |  |  | 1 Months Ended | 2 Months Ended | 3 Months Ended | 5 Months Ended | 8 Months Ended |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Apr. 03, 2024 USD ($) | Mar. 31, 2024 USD ($) $ / shares shares | Feb. 06, 2024 USD ($) $ / shares | Mar. 31, 2024 USD ($) $ / shares | Mar. 31, 2024 USD ($) $ / shares | Sep. 30, 2024 USD ($) $ / shares shares | Jun. 30, 2024 USD ($) $ / shares shares | Jun. 30, 2024 USD ($) $ / shares shares | Sep. 30, 2024 USD ($) $ / shares shares | Aug. 29, 2024 $ / shares
Nature of the Business and Basis of Presentation [Line Items] |  |  |  |  |  |  |  |  |  |
Issuance preferred stock | $ |  |  |  | $ 3,000,000 |  |  |  |  |  |
Convertible notes payable | $ |  | $ 25,000,000 |  | $ 25,000,000 | $ 25,000,000 |  |  |  |  |
Termination fee | $ |  |  | $ 400,000 |  |  |  |  |  |  |
Reverse stock split ratio |  |  | 6.8569 |  |  |  |  |  |  |
Common stock, par value (in Dollars per share) | $ / shares |  |  | $ 0.001 |  |  | $ 0.001 |  |  | $ 0.001 |
Additional paid-in capital transaction costs | $ | $ 20,500,000 |  |  |  |  |  |  |  |  |
Net loss per share (in Dollars per share) | $ / shares |  |  |  |  |  | $ (1.46) |  |  | $ (6.08) |
Common stock issued | $ |  |  |  |  |  | $ 35,000 |  |  | $ 35,000 |
Common Stock exchange (in Shares) | shares |  |  |  |  |  |  | 39,873,706 | 39,873,706 |  |
Common stock conversion of convertible note (in Shares) | shares |  |  |  |  |  |  |  |  | 2,722,207 |
Pre-funded warrants of common stock shares (in Shares) | shares |  |  |  |  |  |  |  |  | 5,522,207 |
Warrants exchange (in Shares) | shares |  |  |  |  |  | 9,664,208 |  |  | 9,664,208 |
Net loss | $ |  |  |  |  | $ (7,077,000) | $ (28,623,000) | $ (22,243,000) |  | $ (57,943,000) |
Net cash | $ |  |  |  |  |  | 39,000,000 |  |  | 39,000,000 |
Cash and cash equivalents | $ |  |  |  |  |  | $ 410,900,000 |  |  | 410,900,000 |
Warrant [Member] |  |  |  |  |  |  |  |  |  |
Nature of the Business and Basis of Presentation [Line Items] |  |  |  |  |  |  |  |  |  |
Warrant gross proceeds amount | $ |  |  | 275,000,000 |  |  |  |  |  |  |
Pre-funded Warrants [Member] |  |  |  |  |  |  |  |  |  |
Nature of the Business and Basis of Presentation [Line Items] |  |  |  |  |  |  |  |  |  |
Aggregate net proceeds | $ |  |  |  |  |  |  |  |  | $ 188,700,000 |
Price per share (in Dollars per share) | $ / shares |  |  |  |  |  | $ 22.999 |  |  | $ 22.999 |
Net of issuance costs | $ |  |  |  |  |  |  |  |  | $ 11,800,000 |
ARCA BIOPHARMA INC [Member] |  |  |  |  |  |  |  |  |  |
Nature of the Business and Basis of Presentation [Line Items] |  |  |  |  |  |  |  |  |  |
Termination fee | $ |  |  | $ 400,000 |  |  |  |  |  |  |
Maximum [Member] | Warrant [Member] |  |  |  |  |  |  |  |  |  |
Nature of the Business and Basis of Presentation [Line Items] |  |  |  |  |  |  |  |  |  |
Purchase price (in Dollars per share) | $ / shares |  |  | $ 9.71 |  |  |  |  |  |  |
Per share (in Dollars per share) | $ / shares |  |  | 5.55 |  |  |  |  |  |  |
Minimum [Member] | Warrant [Member] |  |  |  |  |  |  |  |  |  |
Nature of the Business and Basis of Presentation [Line Items] |  |  |  |  |  |  |  |  |  |
Purchase price (in Dollars per share) | $ / shares |  |  | 9.7 |  |  |  |  |  |  |
Per share (in Dollars per share) | $ / shares |  |  | 5.54 |  |  |  |  |  |  |
Reverse Stock Split [Member] |  |  |  |  |  |  |  |  |  |
Nature of the Business and Basis of Presentation [Line Items] |  |  |  |  |  |  |  |  |  |
Net loss per share (in Dollars per share) | $ / shares |  |  |  |  | $ (2.21) |  | $ (6.96) | $ (9.17) |  |
Common Stock [Member] |  |  |  |  |  |  |  |  |  |
Nature of the Business and Basis of Presentation [Line Items] |  |  |  |  |  |  |  |  |  |
Common stock, par value (in Dollars per share) | $ / shares |  |  | $ 0.001 |  |  |  |  |  |  |
Common stock issued | $ |  |  |  |  |  |  | $ 22,784,139 | $ 22,784,139 |  |
Common Stock exchange (in Shares) | shares |  |  |  |  |  | 4,764,032 |  |  | 4,764,032 |
Number of shares issued to purchase (in Shares) | shares |  |  |  |  |  |  |  |  | 680,000 |
Series A Non-Voting Convertible Preferred Stock [Member] |  |  |  |  |  |  |  |  |  |
Nature of the Business and Basis of Presentation [Line Items] |  |  |  |  |  |  |  |  |  |
Purchase price | $ |  |  |  |  |  |  |  |  | $ 23,000 |
Number of shares issued to purchase (in Shares) | shares |  |  |  |  |  |  |  |  | 2,439 |
Series A Preferred Stock [Member] |  |  |  |  |  |  |  |  |  |
Nature of the Business and Basis of Presentation [Line Items] |  |  |  |  |  |  |  |  |  |
Net loss per share (in Dollars per share) | $ / shares |  |  |  |  |  | $ (1,460.62) |  |  | $ (6,077.13) |
Common stock conversion of convertible note (in Shares) | shares |  |  |  |  |  |  |  |  | 1,000 |
Price per share (in Dollars per share) | $ / shares |  | $ 0.15 |  | $ 0.15 | $ 0.15 |  |  |  |  |
Number of shares issued to purchase (in Shares) | shares |  | 20,000,000 |  |  |  |  |  |  |  |
Oruka common stock [Member] |  |  |  |  |  |  |  |  |  |
Nature of the Business and Basis of Presentation [Line Items] |  |  |  |  |  |  |  |  |  |
Common stock, par value (in Dollars per share) | $ / shares |  |  |  |  |  | 0.001 |  |  | $ 0.001 | $ 0.001
Aggregate net proceeds | $ | 275,000,000 |  |  |  |  |  |  |  |  |
Oruka pre-funded warrants [Member] |  |  |  |  |  |  |  |  |  |
Nature of the Business and Basis of Presentation [Line Items] |  |  |  |  |  |  |  |  |  |
Purchased shares of common stock | $ | $ 25,000,000 |  |  |  |  |  |  |  |  |
ARCA common stock [Member] |  |  |  |  |  |  |  |  |  |
Nature of the Business and Basis of Presentation [Line Items] |  |  |  |  |  |  |  |  |  |
Exchange ratio |  |  |  |  |  |  |  |  | 6.8569 |
Oruka restricted stock [Member] |  |  |  |  |  |  |  |  |  |
Nature of the Business and Basis of Presentation [Line Items] |  |  |  |  |  |  |  |  |  |
Common stock, par value (in Dollars per share) | $ / shares |  |  |  |  |  | 0.0001 |  |  | $ 0.0001 |
Private Placement [Member] |  |  |  |  |  |  |  |  |  |
Nature of the Business and Basis of Presentation [Line Items] |  |  |  |  |  |  |  |  |  |
Price per share (in Dollars per share) | $ / shares |  |  |  |  |  | 22.999 |  |  | $ 22.999 |
Number of shares issued to purchase (in Shares) | shares |  |  |  |  |  |  |  |  | 680,000 |
Private Placement [Member] | Common Stock [Member] |  |  |  |  |  |  |  |  |  |
Nature of the Business and Basis of Presentation [Line Items] |  |  |  |  |  |  |  |  |  |
Common stock, par value (in Dollars per share) | $ / shares |  |  |  |  |  | $ 0.001 |  |  | $ 0.001 |
Number of shares purchased (in Shares) | shares |  |  |  |  |  | 5,600,000 |  |  | 5,600,000 |
Price per share (in Dollars per share) | $ / shares |  |  |  |  |  | $ 23 |  |  | $ 23 |
Private Placement [Member] | Series A Non-Voting Convertible Preferred Stock [Member] |  |  |  |  |  |  |  |  |  |
Nature of the Business and Basis of Presentation [Line Items] |  |  |  |  |  |  |  |  |  |
Preferred Stock, Convertible, Shares Issuable (in Shares) | shares |  |  |  |  |  | 2,439 |  |  | 2,439 |

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