FAIR VALUE MEASUREMENTS (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Warrant liability	$ 4,444	$ 4,144
Total liabilities	4,444	4,144
Level 1
Warrant liability	0	0
Total liabilities	0	0
Level 2
Warrant liability	0	0
Total liabilities	0	0
Level 3
Warrant liability	4,444	4,144
Total liabilities	$ 4,444	$ 4,144

Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled within one year or normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant