LOSS PER SHARE - Schedule of Antidilutive Securities Excluded from Calculation of Diluted Net Loss Per Share (Details) - shares	6 Months Ended	12 Months Ended
	Dec. 31, 2021	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potential common shares considered anti-dilutive (in shares)	353,781	489,249	586,250	847,000
Stock options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potential common shares considered anti-dilutive (in shares)	272,504	392,504	536,250	846,500
RSUs
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potential common shares considered anti-dilutive (in shares)	51,277	36,745	0	0
PRAs
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potential common shares considered anti-dilutive (in shares)	30,000	60,000	50,000	500