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Note 6 - Revenue, Deferred Revenue and Accounts Receivable (Details Textual) - USD ($) $ in Thousands | Nov. 30, 2022 | Nov. 30, 2021 | Nov. 30, 2020
--- | --- | --- | ---
Accounts Receivable, after Allowance for Credit Loss, Current, Total | $ 5,915 | $ 1,658 | $ 800
Accounts Receivable, Allowance for Credit Loss, Ending Balance | 10 | 10 |
Maximum [Member] |  |  |
Accounts Receivable, Allowance for Credit Loss, Ending Balance | $ 20 | $ 20 | $ 20

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