XML 12 R1.htm IDEA: XBRL DOCUMENT v3.24.3
Cover - $ / shares
 4 Months Ended
Sep. 30, 2024
Nov. 06, 2024
Entity Addresses [Line Items]    
Document Type 10-Q  
Amendment Flag false  
Document Quarterly Report true  
Document Transition Report false  
Document Period End Date Sep. 30, 2024  
Document Fiscal Period Focus Q3  
Document Fiscal Year Focus 2024  
Current Fiscal Year End Date --12-31  
Entity File Number 001-42280  
Entity Registrant Name Cayson Acquisition Corp  
Entity Central Index Key 0002024203  
Entity Tax Identification Number 00-0000000  
Entity Incorporation, State or Country Code E9  
Entity Address, Address Line One 205 W 37th St  
Entity Address, City or Town New York  
Entity Address, State or Province NY  
Entity Address, Postal Zip Code 10018  
City Area Code (203)  
Local Phone Number 998-5540  
Entity Current Reporting Status No  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company true  
Elected Not To Use the Extended Transition Period false  
Entity Shell Company true  
Entity Common Stock, Shares Outstanding   7,830,000
Transition report true  
Entity Listing, Par Value Per Share $ 0.0001  
Units, each consisting of one ordinary share and one right    
Entity Addresses [Line Items]    
Title of 12(b) Security Units, each consisting of one ordinary share and one right  
Trading Symbol CAPNU  
Security Exchange Name NASDAQ  
Ordinary Shares, par value $0.0001 per share    
Entity Addresses [Line Items]    
Title of 12(b) Security Ordinary Shares, par value $0.0001 per share  
Trading Symbol CAPN  
Security Exchange Name NASDAQ  
Rights, each entitling the holder to one-tenth of one ordinary share upon the completion of the Company’s initial business combination    
Entity Addresses [Line Items]    
Title of 12(b) Security Rights, each entitling the holder to one-tenth of one ordinary share upon the completion of the Company’s initial business combination  
Trading Symbol CAPNR  
Security Exchange Name NASDAQ  
Former Address [Member]    
Entity Addresses [Line Items]    
Entity Address, Address Line One 420 Lexington Ave  
Entity Address, Address Line Two Suite 2446  
Entity Address, City or Town New York  
Entity Address, State or Province NY  
Entity Address, Postal Zip Code 10170