DEBT AND OTHER FINANCING ARRANGEMENTS - Interest Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Debt Instrument [Line Items]
Interest expense	$ 4,013	$ 2,597	$ 2,992
Line of Credit | 2020 Antara Term Facility | Term Facility
Debt Instrument [Line Items]
Interest expense	2,779	1,218	0
Line of Credit | 2021 JPMorgan Credit Facility
Debt Instrument [Line Items]
Interest expense	1,006	0	0
Line of Credit | 2018 JPMorgan Revolving Credit Facility | Revolving Credit Facility
Debt Instrument [Line Items]
Interest expense	0	303	658
Line of Credit | 2018 JPMorgan Term Loan | Term Facility
Debt Instrument [Line Items]
Interest expense	0	160	1,232
PPP and other loans
Debt Instrument [Line Items]
Interest expense	$ 228	$ 916	$ 1,102