INCOME TAXES - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2014	Jun. 30, 2017
Income Tax Disclosure [Abstract]
Reduction valuation allowances recorded in prior periods				$ 64,000
Provision (benefit) for income taxes	$ 1	$ 262	$ (101)
Benefit for income taxes, alternative minimum tax credit			$ 100
Federal statutory rate	21.00%	21.00%	27.50%
Federal operating loss carryforwards	$ 182,000
State operating loss carryforwards	221,000
Unrecognized tax benefits	207	$ 210	$ 0		$ 0
Accrued interest and penalties	$ 30