v3.26.1
Cover - shares
 6 Months Ended
Jun. 30, 2026
Aug. 13, 2026
Document Information Line Items    
Entity Registrant Name Lake Superior Acquisition Corp.  
Entity Central Index Key 0002043508  
Document Type 10-Q  
Amendment Flag false  
Current Fiscal Year End Date --12-31  
Entity Small Business true  
Entity Shell Company true  
Entity Emerging Growth Company true  
Entity Current Reporting Status Yes  
Document Period End Date Jun. 30, 2026  
Entity Filer Category Non-accelerated Filer  
Document Fiscal Period Focus Q2  
Document Fiscal Year Focus 2026  
Entity Ex Transition Period false  
Entity Common Stock Shares Outstanding   15,693,333
Document Quarterly Report true  
Document Transition Report false  
Entity File Number 001-42896  
Entity Incorporation State Country Code D8  
Entity Address Address Line 1 521 Fifth Avenue  
Entity Address Address Line 2 17th Floor  
Entity Address City Or Town New York  
Entity Address State Or Province NY  
Entity Address Country US  
Entity Address Postal Zip Code 10175  
City Area Code 646  
Local Phone Number 886-8892  
Entity Interactive Data Current Yes  
Units, each consisting of one Class A Ordinary Share and one-seventh of one right    
Document Information Line Items    
Trading Symbol LKSPU  
Security 12b Title Units, each consisting of one Class A Ordinary Share and one-seventh of one right  
Security Exchange Name NASDAQ  
Class A Ordinary Share No Par Value [Member]    
Document Information Line Items    
Trading Symbol LKSP  
Security 12b Title Class A ordinary shares, no par value  
Security Exchange Name NASDAQ  
Acquire one Class A Ordinary Share [Member]    
Document Information Line Items    
Trading Symbol LKSPR  
Security 12b Title Rights, each whole right to acquire one Class A Ordinary Share  
Security Exchange Name NASDAQ