CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Feb. 28, 2021	Aug. 31, 2020
CONSOLIDATED BALANCE SHEETS [Abstract]
Receivables, allowance for doubtful accounts	$ 178	$ 147
Other non-current assets, fair value of derivative instruments	228	872
Other long-term liabilities, fair value of derivative instruments	3,712	4,685
Other long-term liabilities, post-employment plans	$ 6,522	$ 6,155
Common stock, par value per share	$ 0.0001	$ 0.0001
Common stock, shares authorized	45,000,000	45,000,000
Common stock, shares issued	31,451,915	31,417,576
Common stock, shares outstanding	30,777,030	30,670,712
Treasury stock, shares	674,885	746,864

Amount of allowance for credit loss on accounts receivable, classified as current.

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Face amount or stated value per share of common stock.

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Amount of liability, recognized in statement of financial position, for defined benefit pension plan, classified as noncurrent. Excludes other postretirement benefit plan.

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Fair value of all derivative liabilities designated as fair value hedging instruments.

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Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. This stock has no voting rights and receives no dividends.

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