Quarterly report pursuant to Section 13 or 15(d)

Document And Entity Information

v3.10.0.1
Document And Entity Information - shares
3 Months Ended
Aug. 31, 2018
Oct. 08, 2018
Document and Entity Information [Abstract]    
Entity Registrant Name CLS HOLDINGS USA, INC.  
Document Type 10-Q  
Current Fiscal Year End Date --05-31  
Entity Common Stock, Shares Outstanding   90,132,170
Amendment Flag false  
Entity Central Index Key 0001522222  
Entity Current Reporting Status Yes  
Entity Filer Category Non-accelerated Filer  
Document Period End Date Aug. 31, 2018  
Document Fiscal Year Focus 2019  
Document Fiscal Period Focus Q1  
Entity Small Business true  
Entity Emerging Growth Company false  
Entity Ex Transition Period false