INCOME TAXES - Reconciliation of Expected Tax Expense (Benefit) to Actual Tax Expense (Benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Income Tax Disclosure [Abstract]
Expected tax expense (benefit)	$ 3,660	$ (4,199)	$ 2,018
State taxes, net of federal effect	171	(1,042)	(5)
Foreign taxes, net of federal credits	1,424	1,210	(1,055)
Change in valuation allowance	0	1,996	1,744
Tax reserve adjustments	(63)	1,946	(66)
Return to provision and other adjustments	165	372	(57)
Goodwill impairment	0	130	0
Tax rate change applied to deferred tax balances	(675)	54	(129)
Global intangible low taxed income	(2,622)	1,558	1,121
Other permanent items	(167)	(183)	(40)
Actual tax expense	$ 1,893	$ 1,842	$ 3,531