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Note 6 - Other Assets - Carrying Amounts of Other Assets (Details) - USD ($) $ in Thousands | Nov. 30, 2023 | Nov. 30, 2022
--- | --- | ---
Interest receivable | $ 99 | $ 62
Prepaid expenses | 1,125 | 1,298
Other Assets, Current | 1,470 | 2,235
Other long-term assets: |  |
Marketable equity securities | 2,102 | 1,845
Office equipment | 141 | 19
Other Assets, Noncurrent | 3,000 | 2,803
Other Noncurrent Assets [Member] |  |
Other long-term assets: |  |
Right-of-use assets | 757 | 939
Related Party [Member] |  |
Accounts receivable | 43 | 301
Nonrelated Party [Member] |  |
Accounts receivable | $ 203 | $ 574

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