Consolidated Statements of Operations - USD ($)	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
REVENUES:
License and contract	$ 60,300,476	$ 67,134,758	$ 44,723,827
OPERATING EXPENSES:
Research and development	14,857,095	32,566,217	45,683,174
General and administrative	9,699,061	8,641,976	9,610,147
Total operating expenses	24,556,156	41,208,193	55,293,321
Income (loss) from operations	35,744,320	25,926,565	(10,569,494)
OTHER INCOME (EXPENSE):
Investment income	446,268	310,663	26,270
Interest expense	(417,561)	(1,452,014)	(2,288,309)
Total other income (expense), net	28,707	(1,141,351)	(2,262,039)
Income (loss) before income taxes	35,773,027	24,785,214	(12,831,533)
Income tax expense	0	(82,500)	(500,000)
NET INCOME (LOSS)	$ 35,773,027	$ 24,702,714	$ (13,331,533)
Basic net income (loss) per common share	$ 0.17	$ 0.12	$ (0.07)
Diluted net income (loss) income per common share	$ 0.16	$ 0.12	$ (0.07)
Weighted average number of common shares outstanding used in computing basic net income (loss) per common share	207,670,607	198,101,060	184,087,719
Weighted average number of common shares outstanding used in computing diluted income (loss) income per common share	217,133,374	207,007,558	184,087,719