INCOME TAXES - Narrative (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Jun. 30, 2018
Income Tax Disclosure [Abstract]
Net operating loss carryforwards	$ 5,000
Tax credit carryforward, amount	500
Tax credit carryforward subject to expiration	400
Tax credit carryforward not subject to expiration	100
Deferred tax assets for recoverable alternative minimum tax credits	100	$ 200
Deferred tax liability related to indefinite lived assets	300	200
Deferred tax liability	$ 243
Deferred tax asset		$ 8