v3.26.3
Cover - shares
3 Months Ended
Aug. 31, 2026
Oct. 20, 2026
Cover [Abstract]    
Document Type 10-Q  
Amendment Flag false  
Document Quarterly Report true  
Document Transition Report false  
Document Period End Date Aug. 31, 2026  
Document Fiscal Period Focus Q1  
Document Fiscal Year Focus 2027  
Current Fiscal Year End Date --05-31  
Entity File Number 333-294589  
Entity Registrant Name Sensei Harbor Corp.  
Entity Central Index Key 0002112634  
Entity Tax Identification Number 33-4138751  
Entity Incorporation, State or Country Code WY  
Entity Address, Address Line One 22 Giorgi Maruashvili Street  
Entity Address, City or Town Tbilisi  
Entity Address, Country GE  
Entity Address, Postal Zip Code 0101  
City Area Code 307  
Local Phone Number 219-5906  
Entity Current Reporting Status Yes  
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 false  
Entity Common Stock, Shares Outstanding   3,500,000