REVENUE RECOGNITION - Receivables, Broker Fees and Deferred Revenue (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Jun. 30, 2021
Revenue from Contract with Customer [Abstract]
Receivables from contracts with customers, net	$ 14,612	$ 19,112
Broker fees	18,272	19,254
Deferred revenue
Current	8,082	8,164
Non-current	36,925	38,936
Gift card liability
Deferred revenue
Current	2,150	2,240
Deferred franchise fees unopened salons
Deferred revenue
Current	31	40
Non-current	5,824	6,571
Deferred franchise fees open salons
Deferred revenue
Current	5,901	5,884
Non-current	$ 31,101	$ 32,365