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LEASES (Tables)
9 Months Ended
Feb. 28, 2022
Disclosure Text Block [Abstract]  
Schedule Of Cash Flow Supplemental Disclosures Related To Lease [Table Text Block]

Operating cash flows from operating leases     

 

$

252,252

 

Right-of-use assets obtained in exchange for
    new operating lease liabilities

 

$

-

 

Weighted average remaining lease term (in years)

 

 

4.53

 

Weighted average discount rate

   

6.50

%

Lessee, Operating Lease, Liability, Maturity [Table Text Block]

Less than 1 year

 

$

349,000

1 to 2 years

359,000

2 to 3 years

 

 

370,000

3 to 4 years

381,000

4 to 5 years

 

 

201,000

Total undiscounted lease payments

 

 

1,660,000

Less imputed interest

217,000

Total operating lease liabilities

 

$

1,443,000