Statements of Operations (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended		160 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014
Operating expenses:
Research and development	$ (5,415)	$ (1,543)	$ (12,918)	$ (4,433)	$ (63,106)
General and administrative	(1,991)	(1,225)	(5,751)	(3,557)	(33,659)
License fees					(21,500)
Total operating expenses	(7,406)	(2,768)	(18,669)	(7,990)	(118,265)
Loss from operations	(7,406)	(2,768)	(18,669)	(7,990)	(118,265)
Other income (expense):
Interest and dividend income	19	15	62	20	2,998
Fair value of derivative liabilities in excess of proceeds					(508)
Adjustments to fair value of derivative liabilities					1,188
Financing costs					(406)
Gain on sale of investment					100
Income tax expense				(1)	(11)
Net loss arising during development stage	$ (7,387)	$ (2,753)	$ (18,607)	$ (7,971)	$ (114,904)
Net loss per share, basic and diluted	$ (0.34)	$ (0.18)	$ (0.95)	$ (1.00)
Shares used to calculate basic and diluted net loss per share	21,502,542	15,022,854	19,547,968	7,941,275