Statements of Operations - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2016	Mar. 31, 2015
Operating expenses:
Research and development	$ (3,420)	$ (6,775)	$ (9,418)	$ (20,044)
General and administrative	(1,990)	(2,185)	(5,765)	(7,039)
Total operating expenses	(5,410)	(8,960)	(15,183)	(27,083)
Loss from operations	(5,410)	(8,960)	(15,183)	(27,083)
Other income (expense):
Interest and dividend income	39	30	92	52
Income tax expense			(1)	(1)
Net loss	$ (5,371)	$ (8,930)	$ (15,092)	$ (27,032)
Net loss per share, basic and diluted	$ (0.16)	$ (0.27)	$ (0.44)	$ (1.03)
Weighted average shares outstanding - basic and diluted	34,422,663	33,471,920	34,393,087	26,183,435