SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Employee Benefit Plans (Details) - USD ($)	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Accounting Policies [Abstract]
Employers match percentage	25.00%	25.00%	25.00%
Maximum annual percentage contribution per employee	6.00%	6.00%	6.00%
Company contributions to the 401(k) plan (less than)	$ 100,000	$ 100,000	$ 100,000
Group health benefit plan, individual deductible	2,500	2,500	2,500
Group health benefit plan, family deductible	2,500	2,500	2,500
Group health benefit plan, third party insurance company coverage beginning amount, individual	2,500	2,500	2,500
Group health benefit plan, third party insurance company coverage beginning amount, family	10,000	10,000	10,000
Self-insured liability, health insurance (less than)	100,000	100,000
Aggregate stock-based compensation expense	$ 600,000	$ 0	$ 0