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LEASES (Details) - Supplemental cash flow information related to leases
3 Months Ended
Aug. 31, 2022
USD ($)
Supplemental Cash Flow Information Related To Leases Abstract  
Operating cash flows from operating leases $ 86,000
Right-of-use assets obtained in exchange for new operating lease liabilities
Weighted average remaining lease term (in years) 4 years 7 days
Weighted average discount rate 6.50%