v3.26.3
Cover - USD ($)
12 Months Ended
May 31, 2026
Sep. 14, 2026
Nov. 30, 2025
Cover [Abstract]      
Document Type 10-K/A    
Amendment Flag true    
Amendment Description The purpose of this amendment on Form 10-K/A to Laredo Oil, Inc.’s Annual Report on Form 10-K for the period ended May 31, 2026, filed with the Securities and Exchange Commission on September 14, 2026 is solely to furnish the Inline eXtensible Business Reporting Language (iXBRL) data under Exhibit 101 and 104 to the Form 10-K in accordance with Rule 405 of Regulation S-T.   No other changes have been made to the Form 10-K. This Amendment No. 1 to the Form 10-K speaks as of the original filing date of the Form 10-K, does not reflect events that may have occurred subsequent to the original filing date, and does not modify or update in any way disclosures made in the original Form 10-K.     
Document Annual Report true    
Document Transition Report false    
Document Period End Date May 31, 2026    
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2026    
Current Fiscal Year End Date --05-31    
Entity File Number 333-153168    
Entity Registrant Name Laredo Oil, Inc.    
Entity Central Index Key 0001442492    
Entity Tax Identification Number 26-2435874    
Entity Incorporation, State or Country Code DE    
Entity Address, Address Line One 2021 Guadalupe Street    
Entity Address, City or Town Ste. 260; Austin    
Entity Address, State or Province TX    
Entity Address, Postal Zip Code 78705    
City Area Code 512    
Local Phone Number 337-1199    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Non-accelerated Filer    
Entity Small Business true    
Entity Emerging Growth Company false    
Entity Shell Company false    
Entity Public Float     $ 26,100,000
Entity Common Stock, Shares Outstanding   85,595,558  
Cybersecurity Risk Management Processes Integrated [Text Block] We have a range of security measures that are designed to protect against the unauthorized access to and misappropriation of our information, corruption of data, intentional or unintentional disclosure of confidential information, or disruption of operations. We have cloud security tools and governance processes designed to assess, identify, and manage material risks from cybersecurity threats. In addition, we maintain an information security training program designed to address phishing and email security, password security, data handling security, cloud security, operational technology security processes, and cyber-incident response and reporting processes.    
Cybersecurity Risk Management Processes Integrated [Flag] true    
Cybersecurity Risk Third Party Oversight and Identification Processes [Flag] true    
Cybersecurity Risk Management Third Party Engaged [Flag] true    
Cybersecurity Risk Materially Affected or Reasonably Likely to Materially Affect Registrant [Flag] false    
Auditor Firm ID 2738    
Auditor Name M&K CPAS, PLLC    
Auditor Location The Woodlands, TX