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Inventories (Schedule Of Inventories) (Details) (USD $) In Thousands, unless otherwise specified	Feb. 29, 2012	Aug. 31, 2011	Feb. 28, 2011
Inventories [Abstract]
FIFO inventory	$ 33,868	$ 22,614	$ 25,626
LIFO reserves	(7,026)	(7,178)	(6,305)
LIFO inventory	26,842	15,436	19,321
Weighted average inventory	26,087	20,848	21,977
Other FIFO inventory	17,966	15,407	15,806
Obsolescence reserve	(2,317)	(2,167)	(2,228)
Total inventories	$ 68,578	$ 49,524	$ 54,876

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Obsolescence reserve

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Other FIFO Inventory

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- Definition

The amount of FIFO (first in first out) inventory present at the reporting date when inventory is also valued using different valuation methods.

+ References

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-Publisher AICPA

-Name Accounting Research Bulletin (ARB)

-Number 43

-Chapter 3

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-Paragraph 9

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



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Reflects the difference between (a) inventory at the lower of LIFO cost or market and (b) inventory at replacement cost or at the lower of some acceptable inventory accounting method (such as FIFO or average cost), or market. If material, reflects an excess of replacement or current cost over stated LIFO value parenthetically on the balance sheet or in a note to the financial statements.

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Carrying amount (lower of cost or market) as of the balance sheet date of inventories less all valuation and other allowances. Excludes noncurrent inventory balances (expected to remain on hand past one year or one operating cycle, if longer).

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The amount of LIFO (last in first out) inventory present at the reporting date when inventory is also valued using different valuation methods.

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



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The amount of weighted average cost inventory present at the reporting date when inventory is valued using different valuation methods.

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



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