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Income Taxes (Schedule of Deferred Tax Assets and Liabilities) (Details) - USD ($) $ in Thousands | Aug. 31, 2019 | Aug. 31, 2018
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Income Tax Disclosure [Abstract] |  |
Deferred Tax Assets, Allowance for doubtful accounts | $ 687 | $ 947
Deferred Tax Assets, Accrued expenses | 7,791 | 8,142
Deferred Tax Assets, Warranty | 2,118 | 1,648
Deferred Tax Assets, Defined benefit pension plan | 1,705 | 1,528
Deferred Tax Assets, Inventory | 1,445 | 1,935
Deferred Tax Assets, Share-based compensation | 1,146 | 925
Deferred Tax Assets, Vacation | 741 | 797
Deferred Tax Assets, Net operating loss and capital loss carryforwards | 3,648 | 2,868
Deferred Tax Assets, Deferred revenue | 2,716 | 536
Deferred Tax Assets, Other | 2,074 | 665
Gross deferred tax assets | 24,071 | 19,991
Deferred Tax Assets, Valuation allowance | (3,759) | (3,562)
Net deferred tax assets | 20,312 | 16,429
Deferred Tax Liabilities, Intangible assets | (6,163) | (6,648)
Deferred Tax Liabilities, Property, plant and equipment | (3,263) | (4,219)
Total deferred tax liabilities | (9,426) | (10,867)
Net deferred tax assets | $ 10,886 | $ 5,562

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