LEASES - Components of Lease Costs and Other Lease Information (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2023	Dec. 31, 2022	Jun. 30, 2021
Assets:
Right-of-use assets - operating lease		$ 1,371	$ 1,293
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]		Other non-current assets	Other non-current assets
Liabilities:
Current		$ 312	$ 124
Non-current		1,091	1,177
Operating lease liabilities		$ 1,403	$ 1,301
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]		Other current liabilities	Other current liabilities
Statements of operations:
Operating lease cost	$ 84	$ 389	$ 153	$ 165
Short-term lease cost	67	168	106	79
Sublease income	62	0	51	121
Other information:
Right-of-use assets obtained in exchange for new operating lease liabilities	0	323	1,339	15
Operating cash flows from operating leases	$ 86	$ 365	$ 143	$ 166
Weighted-average remaining lease term (in months)	3 months	60 months	80 months	11 months
Weighted-average discount rate	10.00%	10.00%	10.00%	10.00%