NET LOSS PER SHARE - Schedule of basic and diluted net loss per share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Calculation of Numerators:
Net loss for calculation of basic net loss per share	$ (51,787)	$ (41,060)
Gain from change in fair value of derivative liability		(6,565)
Underwriting discount on issuance of derivative		2,495
Net loss for the calculation of diluted net loss per share	$ (51,787)	$ (45,130)
Calculation of Denominators:
Weighted average shares for basic net loss per share	51,187	18,197
Weighted average shares for diluted net loss per share	51,187	19,487
Net loss per share of common stock - basic (in dollars per share)	$ (1.01)	$ (2.26)
Net loss per share of common stock - diluted (in dollars per share)	$ (1.01)	$ (2.32)
2021 Pre-Funded Warrants
Calculation of Denominators:
Weighted average shares for basic net loss per share	1,661	1,179
Class A Warrants
Calculation of Denominators:
Weighted average shares for basic net loss per share	1,974	314
Class B Warrants
Calculation of Denominators:
Weighted average shares for basic net loss per share	10,947	450
Weighted average adjustment		1,290
Common Stock
Calculation of Denominators:
Weighted average shares for basic net loss per share	36,605	16,254