Quarterly report pursuant to Section 13 or 15(d)

REVENUE, DEFERRED REVENUE AND ACCOUNTS RECEIVABLE (Details)

v3.21.1
REVENUE, DEFERRED REVENUE AND ACCOUNTS RECEIVABLE (Details) - USD ($)
$ in Thousands
3 Months Ended
Feb. 28, 2021
Feb. 29, 2020
Revenue, Deferred Revenue And Accounts Receivable [Abstract]    
Deferred revenue balance at beginning of period $ 4,902 $ 11
Net additions to deferred revenue during the period 4,508 18,826
Reductions in deferred revenue for revenue recognized during the period (8,082) (13,935)
Deferred revenue balance at end of period $ 1,328 $ 4,902