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REVENUE, DEFERRED REVENUE AND ACCOUNTS RECEIVABLE (Details) - USD ($)
$ in Thousands
 6 Months Ended 12 Months Ended
May 31, 2021
Nov. 30, 2020
Revenue, Deferred Revenue And Accounts Receivable [Abstract]    
Deferred revenue balance, beginning of period $ 4,902 $ 11
Net additions to deferred revenue during the period 18,100 18,826
Reductions in deferred revenue for revenue recognized during the period (21,327) (13,935)
Deferred revenue balance, end of period $ 1,675 $ 4,902