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Basis Of Presentation (Narrative) (Details) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
May 31, 2020 USD ($) country | May 31, 2020 USD ($) country item | Sep. 01, 2019 USD ($)
Business Acquisition [Line Items] |  |  |
Number of areas of expertise | item |  | 7 |
Number of important distinguishing characteristics from competitors | item |  | 3 |
Impairment charges | $ 0 |  |
Operating lease liabilities | 1,383,000 | $ 1,383,000 |
Operating lease right of use assets | $ 1,383,000 | $ 1,383,000 |
Accounting Standards Update 2016-02 [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Operating lease liabilities |  |  | $ 1,500,000
Operating lease right of use assets |  |  | $ 1,500,000
Minimum [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Number of countries in which entity operates | country | 140 | 140 |

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