Annual report pursuant to Section 13 and 15(d)

Document And Entity Information

Document And Entity Information - USD ($)
12 Months Ended
May 31, 2022
Aug. 19, 2022
Nov. 30, 2021
Document Information Line Items      
Entity Registrant Name CLS HOLDINGS USA, INC.    
Trading Symbol N/A    
Document Type 10-K    
Current Fiscal Year End Date --05-31    
Entity Common Stock, Shares Outstanding   128,208,082  
Entity Public Float     $ 12,503,655
Amendment Flag false    
Entity Central Index Key 0001522222    
Entity Current Reporting Status Yes    
Entity Voluntary Filers No    
Entity Filer Category Non-accelerated Filer    
Entity Well-known Seasoned Issuer No    
Document Period End Date May 31, 2022    
Document Fiscal Year Focus 2022    
Document Fiscal Period Focus FY    
Entity Small Business true    
Entity Emerging Growth Company false    
Entity Shell Company false    
ICFR Auditor Attestation Flag false    
Document Annual Report true    
Document Transition Report false    
Entity File Number 000-55546    
Entity Incorporation, State or Country Code NV    
Entity Tax Identification Number 45-1352286    
Entity Address, Address Line One 11767 South Dixie Highway, Suite 115    
Entity Address, City or Town Miami    
Entity Address, State or Province FL    
Entity Address, Postal Zip Code 33156    
City Area Code 888    
Local Phone Number 438-9132    
Title of 12(b) Security N/A    
Security Exchange Name NONE    
Entity Interactive Data Current Yes    
Auditor Firm ID 2738    
Auditor Name M&K CPAS, PLLC    
Auditor Location Houston, TX