Income Taxes (Schedule of Deferred Tax Assets and Liabilities) (Details) - USD ($) $ in Thousands	Aug. 31, 2022	Aug. 31, 2021
Income Tax Disclosure [Abstract]
Deferred Tax Assets, Accrued expenses	$ 13,438	$ 10,172
Deferred Tax Assets, Warranty	3,336	3,096
Deferred Tax Assets, Defined benefit pension plan	1,391	1,626
Deferred Tax Assets, Inventory	2,544	2,403
Deferred Tax Assets, Share-based compensation	1,474	1,197
Deferred Tax Assets, Vacation	773	749
Deferred Tax Assets, Net operating loss and capital loss carryforwards	1,208	2,245
Deferred Tax Assets, Deferred revenue	1,422	1,565
Deferred Tax Assets, Allowance for doubtful accounts	1,122	870
Deferred Tax Assets, Other	878	1,169
Gross deferred tax assets	27,586	25,092
Deferred Tax Assets, Valuation allowance	(1,203)	(1,091)
Net deferred tax assets	26,383	24,001
Deferred Tax Liabilities, Intangible assets	(5,389)	(5,607)
Deferred Tax Liabilities, Property, plant and equipment	(11,441)	(11,113)
Deferred Tax Liabilities, Derivative contract	(1,294)
Total deferred tax liabilities	(18,124)	(16,720)
Net deferred tax assets	$ 8,259	$ 7,281