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Intangible Assets - Additional Information (Detail) - USD ($)
3 Months Ended 9 Months Ended
Aug. 31, 2021
Aug. 31, 2020
Aug. 31, 2021
Aug. 31, 2020
Goodwill And Intangible Assets Disclosure [Abstract]        
Amortization expense $ 24,000 $ 17,000 $ 65,000 $ 51,000