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STOCKHOLDERS' EQUITY - Schedule of Variables used in Black-Scholes Model (Details)	Sep. 30, 2021	Jul. 01, 2021	Dec. 31, 2020
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Expected life (years)	3 years 3 months 21 days	5 years	4 years 21 days
Discount rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants measurement input	0.53%		0.27%
Expected volatility
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants measurement input	130.23%		130.56%
Expected dividend
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrants measurement input	0.00%		0.00%

X

- Definition

Warrants Outstanding, Measurement Input

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Period between issuance and expiration of outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258

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