Quarterly report pursuant to Section 13 or 15(d)

Note 1 - Nature of Business and Significant Accounting Policies (Details)

v3.10.0.1
Note 1 - Nature of Business and Significant Accounting Policies (Details)
 3 Months Ended
Jun. 27, 2018
USD ($)
shares
Feb. 28, 2018
USD ($)
Dec. 04, 2017
USD ($)
Apr. 29, 2015
shares
Dec. 10, 2014
shares
Nov. 12, 2014
shares
Aug. 31, 2018
USD ($)
Aug. 31, 2017
USD ($)
May 31, 2018
USD ($)
May 31, 2017
USD ($)
Note 1 - Nature of Business and Significant Accounting Policies (Details) [Line Items]                    
Stockholders' Equity Note, Stock Split, Conversion Ratio         0.625          
Subsidiary or Equity Method Investee, Cumulative Percentage Ownership after All Transactions   10.00%                
Cash and Cash Equivalents, at Carrying Value             $ 5,953,925 $ 12,099 $ 52,964 $ 78,310
Advertising Expense             127,392 $ 0    
Reverse Merger with CLS Labs [Member]                    
Note 1 - Nature of Business and Significant Accounting Policies (Details) [Line Items]                    
Stock Issued During Period, Shares, New Issues (in Shares) | shares       15,000,000            
Oasis Acquisition [Member]                    
Note 1 - Nature of Business and Significant Accounting Policies (Details) [Line Items]                    
Number of Subsidiaries     3              
Payments to Acquire Businesses, Gross $ 5,995,543           2,050,000      
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners 90.00%                  
Debt Instrument, Face Amount $ 4,000,000                  
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares (in Shares) | shares 22,058,823                  
Liabilities Assumed $ 204,457                  
Deposit [Member] | Oasis Acquisition [Member]                    
Note 1 - Nature of Business and Significant Accounting Policies (Details) [Line Items]                    
Payments to Acquire Businesses, Gross     $ 250,000              
Additional Payments [Member] | Oasis Acquisition [Member]                    
Note 1 - Nature of Business and Significant Accounting Policies (Details) [Line Items]                    
Payments to Acquire Businesses, Gross   $ 1,800,000                
Original Contemplated Transaction Payment [Member] | Oasis Acquisition [Member]                    
Note 1 - Nature of Business and Significant Accounting Policies (Details) [Line Items]                    
Payments to Acquire Businesses, Gross $ 6,200,000                  
Accounting Standards Update 2017-11 [Member]                    
Note 1 - Nature of Business and Significant Accounting Policies (Details) [Line Items]                    
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification             $ 1,265,751      
Shares of CLS Holdings USA, Inc. [Member] | CLS Labs, Inc. [Member]                    
Note 1 - Nature of Business and Significant Accounting Policies (Details) [Line Items]                    
Subsidiary or Equity Method Investee, Cumulative Number of Shares Issued for All Transactions (in Shares) | shares         6,250,000 10,000,000