DISCONTINUED OPERATIONS - Major Classes of Assets and Liabilities to be Transferred (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Liabilities:
Current liabilities held for sale	$ 321	$ 483
Support Com | Discontinued Operations, Held-for-sale
Assets:
Prepaid expenses and other current assets	38	47
Current assets held for sale	38	47
Other assets	457	454
Long-term assets held for sale	457	454
Loss on classification to held for sale	(495)	(501)
Assets held for sale	0	0
Liabilities:
Accounts payable	18	21
Accrued expenses	303	462
Current liabilities held for sale	$ 321	$ 483