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Investment in Subsidiaries - Additional Information (Detail) (USD $)	9 Months Ended	12 Months Ended				12 Months Ended
	Jun. 30, 2013	Sep. 30, 2011	Jan. 31, 2011 Preferred Stock B and C	Jun. 30, 2013 Calando Pharmaceuticals, Inc.	Jan. 31, 2011 Calando Pharmaceuticals, Inc.	Sep. 30, 2011 Ablaris Therapeutics, Inc.	Jun. 30, 2013 Ablaris Therapeutics, Inc.	Jun. 30, 2013 Leonardo Biosystems, Inc.
Schedule Of Investments [Line Items]
Ownership percentage in subsidiary	100.00%
Investment in preferred stock			$ 9,100,000			$ 1,300,000
Cash investment in subsidiary					1,000,000
Investment in subsidiary through conversion of intercompany debt					8,100,000
Amount owed by subsidiary				3,900,000			1,300,000	858,000
Stated percentage of notes and advances				8.00%
Percentage of outstanding shares				79.00%			64.00%	3.00%
Percentage of investment ownership				76.00%			64.00%
Aggregate purchase price of preferred shares		1,618,509				2,900,000
Investment in preferred stock by outsider						$ 1,600,000

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