STOCKHOLDERS’ EQUITY - Schedule of the Warrants granted, exercised, forfeited and expired (Details) - USD ($)	12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2020
Number of Warrants
Granted (in shares)		0
Weighted-Average Grant- Date Fair Value
Weighted-Average Remaining Contractual Term (in years), Granted	3 years
Warrant
Number of Warrants
Beginning balance (in shares)	8,296,408	7,858,741
Granted (in shares)	300,000	1,439,556
Exercised (in shares)	0	(166,667)
Forfeited (in shares)	0	0
Expired (in shares)	(1,825,185)	(835,222)
Ending balance (in shares)	6,771,223	8,296,408	7,858,741
Number of Option Shares	5,770,263
Non-vested ending balance (in shares)	1,000,960
Weighted-Average Exercise Price
Beginning balance (in usd per share)	$ 1.05	$ 1.52
Granted (in usd per share)	0.36	1.00
Exercised (in usd per share)	0	0.75
Forfeited (in usd per share)	0	0
Expired (in usd per share)	0.75	5.48
Ending balance (in usd per share)	1.05	1.05	$ 1.52
Vested and exercisable ending balance (in usd per share)	0.99
Non-vested ending balance (in usd per share)	1.35
Weighted-Average Grant- Date Fair Value
Beginning balance (in usd per share)	1.90	1.92
Granted (in usd per share)	0.26	3.00
Exercised (in usd per share)	0	0
Forfeited (in usd per share)	0	0
Expired (in usd per share)	0.28	4.17
Ending balance (in usd per share)	1.94	$ 1.90	$ 1.92
Vested and exercisable (in usd per share)	1.90
Non-vested (in usd per share)	$ 2.20
Aggregate Intrinsic Value of Outstanding Warrant Shares, Outstanding Beginning Balance	$ 12,158,467	$ 9,234,295
Aggregate Intrinsic Value of Outstanding Warrant Shares, Granted	35,500	3,938,467
Aggregate Intrinsic Value of Outstanding Warrant Shares, Exercised	0	0
Aggregate Intrinsic Value of Outstanding Warrant Shares, Forfeited	0	0
Aggregate Intrinsic Value of Outstanding Warrant Shares, Expired	(1,950,000)	(1,014,295)
Aggregate Intrinsic Value of Outstanding Warrant Shares, Outstanding Ending Balance	10,243,967	$ 12,158,467	$ 9,234,295
Aggregate Intrinsic Value of Outstanding Warrant Shares, Vested and exercisable Ending Balance	8,710,260
Aggregate Intrinsic Value of Outstanding Warrant Shares, Non-vested Ending Balance	$ 1,533,707
Weighted-Average Remaining Contractual Term (in years), Outstanding Beginning Balance	2 years 4 months 24 days	2 years 2 months 12 days	3 years
Weighted-Average Remaining Contractual Term (in years), Granted	9 years 10 months 24 days	9 months 18 days
Weighted-Average Remaining Contractual Term (in years), Outstanding Ending Balance	2 years 4 months 24 days
Weighted-Average Remaining Contractual Term (in years), Non-vested Ending Balance	3 years 6 months