Annual report pursuant to Section 13 and 15(d)

RIGHT TO USE ASSETS AND LIABILITIES - OPERATING LEASES (Details)

v3.20.2
RIGHT TO USE ASSETS AND LIABILITIES - OPERATING LEASES (Details) - USD ($)
 12 Months Ended
May 31, 2020
May 31, 2019
Jun. 01, 2019
RIGHT TO USE ASSETS AND LIABILITIES - OPERATING LEASES (Details) [Line Items]      
Operating Lease, Expense $ 420,953 $ 361,404  
Operating Lease, Right-of-Use Asset 1,403,429 0 $ 2,703,821
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability 2,675,310 0  
Gain (Loss) on Disposition of Other Assets $ 28,511 $ 0  
Minimum [Member]      
RIGHT TO USE ASSETS AND LIABILITIES - OPERATING LEASES (Details) [Line Items]      
Lessee, Operating Lease, Term of Contract 1 year    
Maximum [Member]      
RIGHT TO USE ASSETS AND LIABILITIES - OPERATING LEASES (Details) [Line Items]      
Lessee, Operating Lease, Term of Contract 4 years