Quarterly report pursuant to Section 13 or 15(d)

Document And Entity Information

v3.20.4
Document And Entity Information - shares
6 Months Ended
Nov. 30, 2020
Jan. 08, 2021
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   126,571,416
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, 2020  
Document Fiscal Year Focus 2021  
Document Fiscal Period Focus Q2  
Entity Small Business true  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Interactive Data Current Yes