Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Revenue:
Total revenue	$ 2,453	$ 41,692
Operating expenses:
Research and development	35,778	33,183
General and administrative and other	13,617	12,859
Total operating expenses	49,395	46,042
Loss from operations	(46,942)	(4,350)
Other income (expense), net:
Investment income, net	1,185	2,009
Other income (expense), net	(5)	446
Total other income (expense), net	1,180	2,455
Loss before provision for income taxes	(45,762)	(1,895)
Provision for income taxes	83	76
Loss before equity in net losses of an affiliate	(45,845)	(1,971)
Equity in net losses of an affiliate	(47)	(35)
Net loss	$ (45,892)	$ (2,006)
Weighted average shares outstanding:
Basic	21,102	18,157
Diluted	21,102	18,157
Net loss per common share:
Basic	$ (2.17)	$ (0.11)
Diluted	$ (2.17)	$ (0.11)
Collaboration [Member]
Revenue:
Total revenue	$ 2,297	$ 41,128
Grant and Other [Member]
Revenue:
Total revenue	$ 156	$ 564