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Note 9 - Property and Equipment (Details Textual) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
May 31, 2022
May 31, 2021
May 31, 2022
May 31, 2021
Nov. 30, 2021
Depreciation, Total $ 100 $ 100 $ 300 $ 300  
Deposits Assets, Noncurrent $ 2,475   2,475   $ 1,293
Operating Expense [Member]          
Depreciation, Total     90    
Cost of Sales [Member]          
Depreciation, Total     $ 100