STOCKHOLDERS' EQUITY - STOCK-BASED COMPENSATION TO SERVICE PROVIDERS (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Stock-Based Compensation to Service Providers
Stock-based compensation for services by non-employees	$ 91	$ 85	$ 68
Consultants \| Stock Options
Stock-Based Compensation to Service Providers
Stock-based compensation for services by non-employees	$ 62	$ 56	$ 24

Fair value of share-based compensation granted to nonemployees as payment for services rendered or acknowledged claims.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585

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