Investment in Subsidiaries - Additional Information (Detail) (USD $)	12 Months Ended
Sep. 30, 2014	Sep. 30, 2011
Schedule Of Investments [Line Items]
Ownership percentage in subsidiary	100.00%
Ablaris Therapeutics
Schedule Of Investments [Line Items]
Ownership percentage in subsidiary	64.00%
Issuance of preferred stock in subsidiary		$ 2,900,000
Investment in preferred stock		1,300,000
Investment in preferred stock by outsider		1,600,000
Percentage of investment ownership	64.00%
Calando Pharmaceuticals Inc
Schedule Of Investments [Line Items]
Ownership percentage in subsidiary	79.00%
Percentage of investment ownership	76.00%
Deconsolidation, Revaluation of Retained Investment, Gain (Loss), Amount	87,000
Amount owed by subsidiary	$ 4,500,000
Stated percentage of notes and advances	8.00%

Amount owed by subsidiary.

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- Definition

Equity method investment ownership percentage on dilutive basis.

+ References

No definition available.

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- Definition

Investment in preferred stock.

+ References

No definition available.

+ Details

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- Definition

Investment in preferred stock by outsider.

+ References

No definition available.

+ Details

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- Definition

Ownership percentage in subsidiary.

+ References

No definition available.

+ Details

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- Definition

Stated percentage of notes and advances.

+ References

No definition available.

+ Details

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- Definition

In connection with deconsolidation of a subsidiary or derecognition of a group of assets, the portion of any gain (loss) recognized by the parent, during the period, which is related to the remeasurement of any retained investment in the former subsidiary or group of assets to its fair value.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 810

-SubTopic 10

-Section 50

-Paragraph 1B

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=18733093&loc=SL4582445-111684

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- Definition

Proceeds from issuance of capital stock which provides for a specific dividend that is paid to the shareholders before any dividends to common stockholders and which takes precedence over common stockholders in the event of liquidation.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Financing Activities

-URI http://asc.fasb.org/extlink&oid=6513228

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 14

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3255-108585

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