REVENUE RECOGNITION - Receivables, Broker Fees and Deferred Revenue (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Jun. 30, 2023	Dec. 31, 2022	Jun. 30, 2022
Revenue from Contract with Customer [Abstract]
Receivables from contracts with customers, net	$ 7,275	$ 5,683
Broker fees	10,945	12,471	$ 14,006	$ 15,592
Deferred revenue
Current	6,857	7,148
Non-current	20,035	23,151
Gift card liability
Deferred revenue
Current	1,816	1,823
Deferred franchise fees unopened salons
Deferred revenue
Non-current	2,148	2,312
Deferred franchise fees open salons
Deferred revenue
Current	5,041	5,325
Non-current	$ 17,887	$ 20,839