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Inventories (Detail) (USD $) In Millions, unless otherwise specified	Jun. 30, 2014	Sep. 30, 2013
Inventory Disclosure [Abstract]
Finished goods inventory that has been shipped, but for which all revenue recognition criteria has not been met	$ 0.2	$ 0.5
Reservce for obsolescence	$ 4.6	$ 4.6

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- Definition

Amount of valuation reserve for inventory.

+ References

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

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-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

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-Publisher FASB

-Name Accounting Standards Codification

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Reference 6: http://www.xbrl.org/2003/role/presentationRef

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-Name Regulation S-X (SX)

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- Definition

Gross amount of an expenditure that is incurred which is not expensed in the current period but rather capitalized as a component of inventory.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 6

-Subparagraph a

-Article 5



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.6(a)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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