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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
May 31, 2021
Feb. 28, 2021
Marketable Securities    
Cost $ 229 $ 224
Gross unrealized gains 54 46
Gross unrealized losses (13) (22)
Fair value $ 270 $ 248