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Note 5 - Acquisitions - Allocation of Total Cost of Asset Acquisition (Details) - USD ($) $ in Thousands | May 12, 2021 | Nov. 30, 2021 | Nov. 30, 2020
--- | --- | --- | ---
Inventory |  | $ 6,613 | $ 4,817
Property and equipment |  | 1,972 | 1,220
Patents |  | $ 3,668 | $ 811
Roboro [Member] |  |  |
Patents | $ 2,810 |  |
Total assets acquired | 3,702 |  |
Kore [Member] |  |  |
Accounts receivable | 465 |  |
Prepaid expenses | 165 |  |
Inventory | 82 |  |
Property and equipment | 180 |  |
Total assets acquired | $ 3,700 |  |

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