Annual report pursuant to Section 13 and 15(d)

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

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RIGHT OF USE ASSETS AND LIABILITIES - OPERATING LEASES (Details) - USD ($)
 12 Months Ended
May 17, 2022
Oct. 20, 2021
May 31, 2023
May 31, 2022
May 31, 2021
May 31, 2020
May 31, 2019
RIGHT OF USE ASSETS AND LIABILITIES - OPERATING LEASES (Details) [Line Items]              
Lessee, Operating Lease, Term of Contract 9 years            
Operating Lease, Expense     $ 331,875 $ 515,457      
Operating Lease, Right-of-Use Asset, Periodic Reduction     353,797 324,904      
Operating Lease, Right-of-Use Asset     1,641,577 2,154,517 $ 4,159,621   $ 4,159,621
Operating Lease, Liability     1,918,287       4,116,221
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability $ 221,469   46,745 $ 229,412 $ 14,899 $ 28,511  
Operating Lease, Impairment Loss     $ 205,888        
Minimum [Member]              
RIGHT OF USE ASSETS AND LIABILITIES - OPERATING LEASES (Details) [Line Items]              
Lessee, Operating Lease, Term of Contract     1 year        
Operating Lease, Expense $ 3,500 $ 3,500          
Maximum [Member]              
RIGHT OF USE ASSETS AND LIABILITIES - OPERATING LEASES (Details) [Line Items]              
Lessee, Operating Lease, Term of Contract     10 years 6 months        
Building and Building Improvements [Member]              
RIGHT OF USE ASSETS AND LIABILITIES - OPERATING LEASES (Details) [Line Items]              
Operating Lease, Liability             $ 4,116,221