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Goodwill And Other Intangible Assets (Narrative) (Details) (USD $)	3 Months Ended	9 Months Ended		9 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended
	Aug. 31, 2013	May 31, 2014	May 31, 2014 Trade Names [Member]	May 31, 2014 Customer Lists [Member]	Aug. 31, 2013 2000 Flushes [Member] Income Approach Valuation Technique [Member]	Aug. 31, 2013 2000 Flushes [Member] Trade Names [Member]	Aug. 31, 2013 Minimum [Member] 2000 Flushes [Member] Income Approach Valuation Technique [Member]	Aug. 31, 2013 Maximum [Member] 2000 Flushes [Member] Income Approach Valuation Technique [Member]
Finite Lived Intangible Assets [Line Items]
Impairment on definite-lived intangible assets	$ 1,100,000					$ 1,100,000
Finite-Lived Intangible Asset, Useful Life				5 years
Finite Lived Intangible Assets Net	24,292,000	24,403,000	22,735,000	1,668,000		7,900,000
Fair Value Inputs, Discount Rate					11.30%
Fair Value Inputs, Long-term Revenue Growth Rate					1.50%		(13.60%)	1.50%
Purchases of intangible assets		$ 1,789,000

X

- Definition

Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (bbb)

-URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19207-110258

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- Definition

Percentage of assumed long-term growth in revenues, used as an input to measure fair value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (bbb)

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- Definition

Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 2

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275

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- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of a finite-lived intangible asset to fair value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 3

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- Definition

The cash outflow to acquire asset without physical form usually arising from contractual or other legal rights, excluding goodwill.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Investing Activities

-URI http://asc.fasb.org/extlink&oid=6516133



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