Note 8 - Revenue, Deferred Revenue and Accounts Receivable - Summary of Changes in Deferred Revenue (Details) - USD ($) $ in Thousands |
3 Months Ended | 12 Months Ended |
|---|---|---|
Feb. 28, 2022 |
Nov. 30, 2021 |
|
| Deferred revenue balance, beginning of period | $ 1,125 | $ 4,902 |
| Net additions to deferred revenue during the period | 5,818 | 33,641 |
| Reductions in deferred revenue for revenue recognized during the period | (6,167) | (37,418) |
| Deferred revenue balance, end of period | 776 | 1,125 |
| Less current portion | 361 | 720 |
| Deferred revenue, non-current | $ 415 | $ 405 |
| X | ||||||||||
- Definition Amount of additions to obligation to transfer good or service to customer for which consideration from customer has been received or is due. No definition available.
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| X | ||||||||||
- Definition Amount of revenue recognized during period including amounts previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.) No definition available.
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| X | ||||||||||
- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as noncurrent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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