NET LOSS PER SHARE - (Details) - shares shares in Thousands	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potential common stock equivalents were excluded from the computation of diluted net loss per share	2,537	1,581
Warrants
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potential common stock equivalents were excluded from the computation of diluted net loss per share	1,252	618
Employee stock options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potential common stock equivalents were excluded from the computation of diluted net loss per share	1,285	963