DESCRIPTION OF OPERATIONS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Property and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020
Property and Equipment
Property and equipment, net	$ 12	$ 28
Capitalized Fees Paid to a Related Party
Capitalized fees paid to a related party, useful life	15 years
Equipment, furniture and fixtures \| Minimum
Property and Equipment
Estimated useful life	5 years
Equipment, furniture and fixtures \| Maximum
Property and Equipment
Estimated useful life	7 years
Software and computer equipment
Property and Equipment
Estimated useful life	3 years

Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant