STOCK-BASED COMPENSATION (Details 3) - USD ($)	3 Months Ended
Mar. 31, 2021	Mar. 31, 2020
Stock-based compensation	$ 859	$ 467
Selling, General and Administrative
Stock-based compensation	602	429
Research and Development
Stock-based compensation	$ 257	$ 38

Amount of noncash expense for share-based payment arrangement.

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 (a)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585

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