SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES, Loss per Common Share (Details) - shares	3 Months Ended
Mar. 31, 2023	Mar. 31, 2022
Loss Per Common Share [Abstract]
Potentially dilutive securities (in shares)	28,346,315	27,047,033
Stock Options [Member]
Loss Per Common Share [Abstract]
Potentially dilutive securities (in shares)	9,945,703	8,686,068
Restricted Stock Units [Member]
Loss Per Common Share [Abstract]
Potentially dilutive securities (in shares)	4,875,464	4,729,758
Warrants [Member]
Loss Per Common Share [Abstract]
Potentially dilutive securities (in shares)	13,525,148	13,631,207

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration