INCOME TAXES - Summary of Net Deferred Tax Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Jun. 30, 2022
Deferred tax assets:
Net operating loss carryforwards	$ 42,614	$ 47,984
Asset reserves	6,500	6,666
Deferred research and development	2,856	1,503
Stock-based compensation	3,798	3,416
Other	(978)	(143)
Deferred tax assets, gross	54,790	59,426
Deferred tax liabilities:
Intangibles	(3,689)	(4,316)
Deferred tax assets, net	51,101	55,110
Valuation allowance	(51,376)	(55,296)
Deferred tax liabilities	$ (275)	$ (186)