Commitments and Contingencies - Additional Information (Detail)	3 Months Ended	9 Months Ended
	Mar. 31, 2015 USD ($)	Jun. 30, 2015 USD ($) shares	Jun. 30, 2015 EUR (€) shares
Commitments and Contingencies [Line Items]
Additional shares of common stock to stockholders | shares		480,059	480,059
License agreement commencement date		2006-03	2006-03
Annual minimum payments for licenses		$ 222,000	€ 200,000
Exchange rate relating to license payment		1.10944
Future minimum payments associated with license		$ 2,700,000
January 2009 through September 2014 [Member]
Commitments and Contingencies [Line Items]
Hydrophilic coating royalties overpaid	$ 5,700,000
Patents [Member]
Commitments and Contingencies [Line Items]
Patent expiry date		2027-09	2027-09