INCOME TAXES - Summary of Reconciliation of the Benefit (Provision) for Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Income Tax Disclosure [Abstract]
Indicated benefit (provision) at federal statutory rate	$ 1,648	$ 8,514	$ 6,671
Stock compensation	168	(226)	(140)
Other permanent differences	608	(106)	(76)
State income taxes, net of federal benefit	116	1,393	663
Changes related to prior years	0	489	0
Changes in valuation allowances	(2,927)	(10,139)	(7,319)
Other	17	74	(61)
Total income tax (provision) benefit	$ (370)	$ (1)	$ (262)