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STOCK-BASED COMPENSATION, Stock-Based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Stock-Based Compensation Expense [Abstract]
Stock-based compensation expense	$ 476	$ 1,729	$ 2,538	$ 3,302
Research and Development [Member]
Stock-Based Compensation Expense [Abstract]
Stock-based compensation expense	183	448	1,075	1,018
General and Administrative [Member]
Stock-Based Compensation Expense [Abstract]
Stock-based compensation expense	$ 293	$ 1,281	$ 1,463	$ 2,284

X

- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)(i)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

+ Details

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- References

No definition available.

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