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Nature of the Business and Basis of Presentation (Details) - USD ($)
$ / shares in Units, $ in Thousands
 1 Months Ended 2 Months Ended 3 Months Ended 11 Months Ended
Sep. 03, 2024
Apr. 03, 2024
Nov. 30, 2024
Mar. 31, 2024
Mar. 31, 2025
Dec. 31, 2024
Sep. 30, 2024
Sep. 13, 2024
Aug. 29, 2024
Nature of the Business and Basis of Presentation [Line Items]                  
Common stock, par value (in Dollars per share)         $ 0.001 $ 0.001      
Additional paid-in capital transaction costs   $ 20,500              
Net loss       $ (7,077) $ (20,999)        
Net cash operating activities       (168) (20,869)        
Cash, cash equivalents, and marketable securities         373,000        
Pre-Funded Warrants [Member]                  
Nature of the Business and Basis of Presentation [Line Items]                  
Aggregate gross proceeds           $ 188,700      
Purchase price per share (in Dollars per share)               $ 22.999  
Net of issuance costs           $ 11,900      
ARCA [Member]                  
Nature of the Business and Basis of Presentation [Line Items]                  
Cash Balance                 $ 4,940
Common Stock [Member]                  
Nature of the Business and Basis of Presentation [Line Items]                  
Conversion ratio           83.3332:1      
Convertible shares (in Shares)     2,439,000            
Prefunded warrants to purchase an aggregate shares (in 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)               $ 23,000  
Series A Preferred Stock [Member]                  
Nature of the Business and Basis of Presentation [Line Items]                  
Convertible shares (in Shares)     2,439     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) $ 0.001                
Pre-Merger Oruka [Member] | Pre-Funded Warrants [Member]                  
Nature of the Business and Basis of Presentation [Line Items]                  
Aggregate gross proceeds   275,000              
Proceeds from Issuance of convertible note   $ 25,000              
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)           $ 0.0001      
ARCA Series B non-voting convertible preferred stock [Member]                  
Nature of the Business and Basis of Presentation [Line Items]                  
Common stock, par value (in Dollars per share)           0.001      
PIPE Financing [Member] | Common Stock [Member]                  
Nature of the Business and Basis of Presentation [Line Items]                  
Aggregate of purchased shares (in Shares)               5,600,000  
Purchase price per share (in Dollars per share)               $ 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)           $ 0.001      
Aggregate shares (in Shares)           2,439      
PIPE Financing [Member] | Series A Preferred Stock [Member]                  
Nature of the Business and Basis of Presentation [Line Items]                  
Purchase price per share (in Dollars per share)             $ 23,000    
Common Stock [Member]                  
Nature of the Business and Basis of Presentation [Line Items]                  
Exchange ratio           6.8569      
Net loss       $ (7,077) $ (16,480)