Quarterly report pursuant to Section 13 or 15(d)

Document And Entity Information

Document And Entity Information - shares
6 Months Ended
Nov. 30, 2021
Jan. 10, 2022
Document Information Line Items    
Entity Registrant Name CLS HOLDINGS USA, INC.  
Document Type 10-Q  
Current Fiscal Year End Date --05-31  
Entity Common Stock, Shares Outstanding   128,158,082
Amendment Flag false  
Entity Central Index Key 0001522222  
Entity Current Reporting Status Yes  
Entity Filer Category Non-accelerated Filer  
Document Period End Date Nov. 30, 2021  
Document Fiscal Year Focus 2022  
Document Fiscal Period Focus Q2  
Entity Small Business true  
Entity Emerging Growth Company false  
Entity Shell Company false  
Document Quarterly 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  
No Trading Symbol Flag true  
Security Exchange Name NONE  
Entity Interactive Data Current Yes