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Nature Of Operations And Summary Of Significant Accounting Policies (Components Of Inventories) (Details) - USD ($) $ in Thousands	Aug. 31, 2021	Aug. 31, 2020
Nature Of Operations And Summary Of Significant Accounting Policies [Abstract]
Finished goods	$ 2,468	$ 2,947
Raw materials	28	27
Inventories	$ 2,496	$ 2,974

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Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of merchandise or goods held by the company that are readily available for sale.

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-Name Accounting Standards Codification
-Topic 330
-SubTopic 10
-Section S99
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Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

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Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of unprocessed items to be consumed in the manufacturing or production process.

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