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REVENUE, DEFERRED REVENUE AND ACCOUNTS RECEIVABLE (Details) - USD ($) | 6 Months Ended | 12 Months Ended
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May 31, 2021 | Nov. 30, 2020 | Nov. 30, 2019
Revenue, Deferred Revenue And Accounts Receivable [Abstract] |  |  |
Deferred revenue balance, beginning of period | $ 4,902,000 | $ 11,000 | $ 10,842
Net additions to deferred revenue during the period | 18,100,000 | 18,826,000 | 0
Reductions in deferred revenue for revenue recognized during the period | (21,327,000) | (13,935,000) |
Deferred revenue balance, end of period | $ 1,675,000 | $ 4,902,000 | $ 11,000

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- Definition Amount of revenue recognized that was previously included or added during the period to balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due. + References No definition available. + Details
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- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=123360276&loc=SL49130531-203044 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130549-203045 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=123360276&loc=SL49130532-203044 + Details
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