XML 12 R1.htm IDEA: XBRL DOCUMENT v3.25.2
Cover - shares
 6 Months Ended
Jun. 30, 2025
Aug. 08, 2025
Document Information [Line Items]    
Document Type 10-Q  
Document Quarterly Report true  
Document Transition Report false  
Entity Interactive Data Current Yes  
Amendment Flag false  
Document Period End Date Jun. 30, 2025  
Document Fiscal Year Focus 2025  
Document Fiscal Period Focus Q2  
Entity Information [Line Items]    
Entity Registrant Name MOUNTAIN LAKE ACQUISITION CORP.  
Entity Central Index Key 0002029492  
Entity File Number 001-42436  
Entity Tax Identification Number 98-1796213  
Entity Incorporation, State or Country Code E9  
Current Fiscal Year End Date --12-31  
Entity Current Reporting Status Yes  
Entity Shell Company true  
Entity Filer Category Non-accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company true  
Entity Ex Transition Period false  
Entity Incorporation, Date of Incorporation Jun. 14, 2024  
Entity Contact Personnel [Line Items]    
Entity Address, Address Line One 930 Tahoe Blvd STE 802 PMB 45  
Entity Address, City or Town Incline Village  
Entity Address, State or Province NV  
Entity Address, Postal Zip Code 89451  
Entity Phone Fax Numbers [Line Items]    
City Area Code (775)  
Local Phone Number 204-1489  
Units, each consisting of one Class A Ordinary Share, par value $0.0001 per share, and one Right entitling the holder to receive one-tenth of a Class A Ordinary Share    
Entity Listings [Line Items]    
Title of 12(b) Security Units, each consisting of one Class A Ordinary Share, par value $0.0001 per share, and one Right  
Trading Symbol MLACU  
Security Exchange Name NASDAQ  
Class A Ordinary Share, par value $0.0001 per share    
Entity Listings [Line Items]    
Title of 12(b) Security Class A Ordinary Share, par value $0.0001 per share  
Trading Symbol MLAC  
Security Exchange Name NASDAQ  
Rights    
Entity Listings [Line Items]    
Title of 12(b) Security Rights  
Trading Symbol MLACR  
Security Exchange Name NASDAQ  
Class A Ordinary Shares    
Entity Listings [Line Items]    
Entity Common Stock, Shares Outstanding   23,805,000
Class B Ordinary Shares    
Entity Listings [Line Items]    
Entity Common Stock, Shares Outstanding   7,187,500