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Inventories (Details) - USD ($)
$ in Thousands
May 31, 2022
Nov. 30, 2021
Inventory [Line Items]    
Raw materials $ 1,001 $ 1,920
Work in process 0 0
Finished goods 1,779 1,631
Total 2,780 3,551
Other Current Assets    
Inventory [Line Items]    
Total $ 2,800 $ 3,600