Commitments and Contingencies - Additional Information (Detail)	1 Months Ended	3 Months Ended		6 Months Ended	9 Months Ended	12 Months Ended
	Sep. 30, 2014 USD ($)	Sep. 30, 2015 USD ($) € / $	Sep. 30, 2014 USD ($)	Mar. 31, 2015 USD ($)	Jun. 30, 2015 USD ($)	Sep. 30, 2015 USD ($) € / $	Sep. 30, 2015 EUR (€)	Sep. 30, 2013 USD ($)	Sep. 29, 2015 USD ($)
Commitments And Contingencies [Line Items]
Agreed to pay the customer and settlement of claim									$ 2,500,000
Undisputed royalties earned									$ 500,000
Revenue recognized by company		$ 500,000
Pre tax compensation expense		$ 2,500,000
License agreement commencement date						2006-03	2006-03
Annual minimum payments for licenses						$ 223,000	€ 200,000
Exchange rate relating to license payment | € / $		1.11707				1.11707
Future minimum payments associated with license	$ 2,700,000		$ 2,700,000
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
Rent expense related to operating leases	$ 100,000					$ 100,000		$ 100,000
Maximum [Member]
Commitments And Contingencies [Line Items]
Rights to receive contingent consideration			$ 100,000
Patents [Member]
Commitments And Contingencies [Line Items]
Patent expiry date						2027-09	2027-09
January 2009 through September 2014 [Member]
Commitments And Contingencies [Line Items]
Royalties overpaid				$ 5,700,000	$ 5,700,000