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STOCKHOLDERS' EQUITY - WARRANT EXERCISES (Details) - USD ($) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2022 | Sep. 30, 2022 | Sep. 30, 2021 | May 27, 2020
Class of Warrant or Right [Line Items] |  |  |  |
Proceeds from exercise of warrants |  | $ 3,638,000 | $ 2,479,000 |
Purchase Warrants [Member] |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |
Proceeds from exercise of warrants | $ 3,638,000 |  |  |
2020 Public Offering of Common Stock and Warrants |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |
Warrant to purchase common stock, shares | 52,975,463 | 52,975,463 |  |
2020 Public Offering of Common Stock and Warrants | 2020 Pre-Funded Warrant |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |
Warrant to purchase common stock, shares | 8,335,239 | 8,335,239 |  | 8,335,239
Underwritten Public Offering | Stock Purchase Warrants |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |
Warrants to purchase common stock exercised, shares | 2,798,003 | 2,798,003 |  |

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- Definition Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI https://asc.fasb.org/extlink&oid=126973232&loc=d3e21475-112644 + Details
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- Definition The cash inflow associated with the amount received from holders exercising their stock warrants. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3255-108585 + Details
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