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REVENUE RECOGNITION - Schedule of Receivables, Broker Fees and Deferred Revenue (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Jun. 30, 2024	Sep. 30, 2023	Jun. 30, 2023
Revenue from Contract with Customer [Abstract]
Receivables from contracts with customers, net	$ 6,799	$ 6,887
Broker fees	8,560	9,369	$ 11,623	$ 12,471
Deferred revenue
Current deferred revenue	4,883	5,104
Non-current deferred revenue	15,363	16,755
Gift card liability
Deferred revenue
Current deferred revenue	334	366
Deferred franchise fees open salons
Deferred revenue
Current deferred revenue	4,549	4,738
Non-current deferred revenue	13,608	14,972
Deferred franchise fees unopened salons
Deferred revenue
Non-current deferred revenue	$ 1,755	$ 1,783