16. CONSOLIDATED QUARTERLY FINANCIAL DATA UNAUDITED (Details) - USD ($)	3 Months Ended												12 Months Ended
	Jun. 30, 2020		Mar. 31, 2020		Dec. 31, 2019		Sep. 30, 2019		Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Quarterly Financial Information Disclosure [Abstract]
Revenues	$ 0		$ 0		$ 21,000		$ 97,000		$ 60,265,000	$ 0	$ 0	$ 35,000	$ 117,989	$ 60,300,476		$ 67,134,758
Operating expenses	7,390,000		5,713,000		5,662,000		4,960,000		8,080,000	5,763,000	5,050,000	5,663,000	23,724,769	24,556,156		41,208,193
Other expense, net	91,000		331,000		397,000		362,000		39,000	36,000	8,000	(54,000)	1,180,757	28,707		(1,141,351)
Loss before income taxes	(7,299,000)		(5,382,000)		(5,244,000)		(4,501,000)		52,224,000	(5,727,000)	(5,042,000)	(5,682,000)	(22,426,023)	35,773,027		24,785,214
Income taxes	0		0		0		0		0	0	0	0	0	0		(82,500)
Net Loss	$ (7,299,000)		$ (5,382,000)		$ (5,244,000)		$ (4,501,000)		$ 52,224,000	$ (5,727,000)	$ (5,042,000)	$ (5,682,000)	$ (22,426,023)	$ 35,773,027	$ 24,702,714	$ 24,702,714
Basic net loss per common share	$ (0.03)	[1]	$ (0.02)	[1]	$ (0.02)	[1]	$ (0.02)	[1]	$ 0.25	$ (0.03)	$ (0.02)	$ (0.03)	$ (0.10)	$ 0.17	$ .12	$ 0.12
Diluted net loss per common share	$ (0.03)	[1]	$ (0.02)	[1]	$ (0.02)	[1]	$ (0.02)	[1]	$ 0.23	$ (0.03)	$ (0.02)	$ (0.03)	$ (0.10)	$ 0.16	$ 0.12	$ 0.12
Weighted average number of common shares outstanding used in computing basic net loss per common share	235,394,831		235,322,087		234,923,592		233,113,241		212,253,194	207,016,304	206,487,984	205,009,278	234,684,776	207,670,607	198,101,060	198,101,060
Weighted average number of common shares outstanding used in computing diluted net loss per common share	235,394,831		235,322,087		234,923,592		233,113,241		228,526,106	207,016,304	206,487,984	205,009,278	234,684,776	217,133,374	207,007,538	207,007,558

[1] Sum of quarters does not equal annual total due to rounding.