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Balance Sheet Components - Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Nov. 30, 2020	Aug. 31, 2020
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 915	$ 895
Accumulated Amortization	827	806
Total	$ 88	$ 89
Patents and trademarks
Finite Lived Intangible Assets [Line Items]
Weighted Average Amortization Period (Years)	15 years	15 years
Gross Carrying Amount	$ 562	$ 550
Accumulated Amortization	474	461
Total	$ 88	$ 89
Acquired technology
Finite Lived Intangible Assets [Line Items]
Weighted Average Amortization Period (Years)	5 years	5 years
Gross Carrying Amount	$ 353	$ 345
Accumulated Amortization	$ 353	$ 345

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- Definition

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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