Intravaginal Ring Technology License - Additional Information (Detail)	9 Months Ended
	Sep. 30, 2017 USD ($)
License Agreements [Line Items]
License agreement notice period	90 days
License fee payment	$ 50,000
License fee payment beginning on the sixth anniversary	100,000
Milestone payment	$ 1,200,000
Financial Default [Member]
License Agreements [Line Items]
Cure period	15 days
Non Financial Default [Member]
License Agreements [Line Items]
Cure period	60 days