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Nature of the Business and Basis of Presentation (Details)
 2 Months Ended 3 Months Ended 5 Months Ended 8 Months Ended
Apr. 03, 2024
USD ($)
Mar. 31, 2024
$ / shares
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
Feb. 06, 2024
USD ($)
$ / shares
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
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)         39,873,706 39,873,706      
Common stock conversion of convertible note (in Shares)             2,722,207    
Pre-funded warrants of common stock shares (in Shares)             5,522,207    
Warrants exchange (in Shares)       9,664,208     9,664,208    
Convertible shares (in Shares)             2,722,207    
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 | $       $ 410,875,000     410,875,000  
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    
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 issued | $         $ 22,784,139 $ 22,784,139      
Common Stock exchange (in Shares)       4,764,032     4,764,032    
Number of shares issued to purchase (in 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)             2,439    
Series A Preferred Stock [Member]                  
Nature of the Business and Basis of Presentation [Line Items]                  
Price per share (in Dollars per share) | $ / shares   $ 0.15 $ 0.15            
Convertible shares (in Shares)             1,000    
Number of shares issued to purchase (in 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)             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)       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)       2,439     2,439