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Income Taxes (Narrative) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Aug. 31, 2023 | Aug. 31, 2022 | Aug. 31, 2021 | Aug. 31, 2020 | Aug. 31, 2019
Income Taxes [Line Items] |  |  |  |  |
Benefit (provision) for income taxes | $ (8,088) | $ (3,634) | $ 7,548 |  |
Income before income taxes | 25,869 | 22,064 | $ 6,075 |  |
Effective income tax benefit rate |  |  | 124.20% |  |
Tax expense for non-deductible executive compensation | $ 900 | $ 1,200 |  |  |
Income tax rate | 31.30% | 16.50% | (124.20%) |  |
Effective tax rate | 21.00% | 21.00% | 21.00% |  |
Additional tax expense from increase in valuation allowance against deferred income tax assets |  |  | $ 11,300 | $ 11,300 |
GILTI tax benefit | $ 200 |  | 300 |  | $ 300
Operating loss carryforwards | 17,993 |  |  |  |
Reduced the valuation allowance by | 372 | $ 2,845 | 10,546 |  |
Total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate | 1,300 | 1,300 |  |  |
Increase (decrease) in income tax expense due to interest and penalties related to uncertain tax positions | 100 | 100 |  |  |
Unrecognized tax benefits | 1,618 | 1,597 | 1,594 | $ 1,640 |
Balance of interest and penalties related to uncertain tax positions | 400 | 300 |  |  |
Tax differential on income subject to both U.S. and foreign taxes | 400 |  |  |  |
Stock-Based Compensation Deductions [Member] |  |  |  |  |
Income Taxes [Line Items] |  |  |  |  |
Benefit (provision) for income taxes |  | $ 600 |  |  |
United States – State And Local Income Tax [Member] |  |  |  |  |
Income Taxes [Line Items] |  |  |  |  |
Operating loss carryforwards | $ 1,200 |  |  |  |
Foreign Tax Authority [Member] |  |  |  |  |
Income Taxes [Line Items] |  |  |  |  |
Operating loss carryforwards |  |  | $ 800 |  |

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- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-12 + Details
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