Quarterly report pursuant to Section 13 or 15(d)

Note 2 - Operations and Management Plans (Details Textual)

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Note 2 - Operations and Management Plans (Details Textual) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Aug. 31, 2023
Aug. 31, 2022
Aug. 31, 2023
Aug. 31, 2022
Nov. 30, 2022
Retained Earnings (Accumulated Deficit) $ (68,747)   $ (68,747)   $ (61,383)
Revenue from Contract with Customer, Excluding Assessed Tax 7,085 $ 12,422 27,004 $ 32,018  
Net Income (Loss) Attributable to Parent $ (4,094) $ (1,534) $ (7,363) $ (7,752)