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Income Taxes (Narrative) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Feb. 29, 2020 | Feb. 28, 2019 | Feb. 29, 2020 | Feb. 28, 2019
Income Taxes [Abstract] |  |  |  |
Income tax benefit | $ (2,019) | $ (410) | $ (2,235) | $ (310)
Pre-tax loss | $ (922) | $ (3,927) | $ (1,682) | $ (5,184)
Effective tax rate |  |  | 133.00% |
Income tax benefit from exercise of stock options |  |  | $ 1,800 |

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