Commitments and Contingencies - Additional Information (Detail)	1 Months Ended	3 Months Ended	12 Months Ended
	Jul. 31, 2013 USD ($)	Sep. 30, 2013 USD ($)	Sep. 30, 2013 USD ($)	Sep. 30, 2013 EUR (€)	Sep. 30, 2012 USD ($)	Sep. 30, 2011 USD ($)	Sep. 30, 2013 Patents [Member]
Commitments and Contingencies [Line Items]
Accrual in discontinued operations		$ 100,000	$ 100,000
Unreimbursed legal expenses	1,300,000
Payment received on unreimbursed legal expenses		1,000,000
Reimbursement of legal fee, Percentage			75.00%	75.00%
Legal expenses		600,000
Additional shares of common stock to stockholders			480,059	480,059
License agreement commencement date			2006-03	2006-03
Annual minimum payments for licenses			270,000	200,000
Exchange rate relating to license payment		$ 1.352	$ 1.352
Future minimum payments associated with license		3,800,000	3,800,000
Patent expiry date							2027-09
Additional maximum amount payable on successful achievement of specified milestones to sellers of PR Pharma		2,500,000	2,500,000
Indemnification period			5 years	5 years
Accrual for contingency		0	0
Rent expense related to operating leases			$ 100,000		$ 100,000	$ 200,000