Related Party Transaction - Additional Information (Detail) (USD $)	1 Months Ended			2 Months Ended	12 Months Ended		151 Months Ended			48 Months Ended	1 Months Ended			48 Months Ended		1 Months Ended				1 Months Ended
	Jul. 31, 2006	Dec. 31, 2003	May 31, 2002	Aug. 31, 2011	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Dec. 18, 2006	Nov. 30, 2003	Jun. 30, 2009 License agreement for Triphendiol and NV-143	Aug. 31, 2009 License Agreement For NV-128	Mar. 31, 2012 Novogen	May 31, 2012 Novogen	Jun. 30, 2007 Novogen	Dec. 05, 2012 Novogen Warrants Cancelled	Nov. 30, 2012 Series A Preferred Stock	Jun. 30, 2013 Series A Preferred Stock	Jun. 30, 2012 Series A Preferred Stock	Dec. 31, 2010 Series A Preferred Stock	Dec. 31, 2011 Securities Subscription Agreement With Novogen	Dec. 28, 2011 Securities Subscription Agreement With Novogen	Sep. 27, 2011 Securities Subscription Agreement With Novogen	Sep. 30, 2011 Securities Subscription Agreement With Novogen
Related Party Transaction [Line Items]
Preferred shares issued																	1,000	1,000	1,000
Common stock issued up on Conversion of preferred stock																804,500
License agreement expenses							$ 21,500,000			$ 4,000,000	$ 1,500,000			$ 16,000,000
Number of shares of common stock in each unit	1	0.17										0.0833
Number of warrants in each unit	0.06	1										1
Number of shares each warrant to purchase of common stock		0.17										0.04167
Number of subscription right unit issued													8,988,675
stock issued		239,200		215,667									749,056							323,625			222,222
Warrants issued													374,528
Warrant exercisable period													5 years
Exercise price per share					130.20		130.20	540.00	240.00				7.14
Warrants to purchase common stock															166,666
Issuance of Common Stock					17,116,571	3,416,491	17,116,571														323,625	222,222
Purchase Price of common stock issued																					$ 6.18	$ 9.00
Proceeds from issuance of common stock			$ 9,000,000		$ 39,453,000	$ 9,831,000	$ 126,387,000													$ 2,000,000	$ 2,000,000	$ 2,000,000	$ 2,000,000