STOCK-BASED COMPENSATION - Stock Options (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Shares/Units
Options outstanding (in shares)	2,991	1,495
Granted (in shares)	1,644
Forfeited/ Expired (in shares)	(148)
Exercised (in shares)	0
Exercisable at the end of the period (in shares)	645
Unvested awards, net of estimated forfeitures (in shares)	1,958
Weighted Average Exercise Price
Outstanding balance at the beginning of the period (in dollars per share)	$ 1.61	$ 1.81
Granted (in dollars per share)	1.43
Forfeited/ Expired (in dollars per share)	1.59
Exercised (in dollars per share)	0
Exercisable at the end of the period (in dollars per share)	1.54
Unvested options, net of estimated forfeitures (in dollars per share)	$ 1.63
Weighted Average Remaining Contractual Life
Outstanding at the end of the period	8 years 11 months 23 days
Exercisable at the end of the period	9 years 18 days
Unvested options, net of estimated forfeitures	8 years 11 months 19 days
Aggregate Intrinsic Value (in thousands)
Outstanding balance at end of period	$ 1,496
Exercisable	277
Unvested awards, net of estimated forfeitures	$ 1,018