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Note 9 - Revenue, Deferred Revenue and Accounts Receivable (Details Textual) - USD ($) $ in Thousands |  | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | --- | ---
Aug. 31, 2024 | Aug. 31, 2024 | Aug. 31, 2023 | Aug. 31, 2024 | Aug. 31, 2023 | Nov. 30, 2023 | Nov. 30, 2022
Standard Product Warranty, Term (Year) |  | 1 year |  |  |  |  |
Extended Product Warranty, Term (Year) | 3 years | 3 years |  |  |  |  |
Accounts Receivable, after Allowance for Credit Loss, Current | $ 2,128 | $ 2,128 |  | $ 2,128 |  | $ 2,945 | $ 5,900
Accounts Receivable, Allowance for Credit Loss | 300 | 300 |  | 300 |  | 500 | 20
Contract with Customer, Liability | $ 800 | 800 | $ 800 | 800 | $ 800 | $ 1,900 | $ 800
Contract with Customer, Liability, Revenue Recognized |  | $ 100 | $ 400 | $ 200 | $ 500 |  |

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