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STOCKHOLDERS' EQUITY - WARRANT EXERCISES (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Class of Warrant or Right [Line Items] |  |  |
Proceeds from exercise of warrants | $ 105,912,000 | $ 15,163,000 | $ 2,479,000
Common stock outstanding warrants to purchase | 53,904,980 |  |
Pre-Funded Warrants |  |  |
Class of Warrant or Right [Line Items] |  |  |
Warrants exercise price | $ 0.001 |  |
Common stock outstanding warrants to purchase | 51,430,477 |  |
2020 Public Offering of Common Stock and Warrants | 2020 Pre-Funded Warrant |  |  |
Class of Warrant or Right [Line Items] |  |  |
Warrants to purchase common stock, shares |  | 8,335,239 |
2020 Public Offering of Common Stock and Warrants | Stock Purchase Warrants |  |  |
Class of Warrant or Right [Line Items] |  |  |
Warrants exercise price | $ 1.3 |  |
Common stock outstanding warrants to purchase | 2,474,503 |  |
Warrants expiration date | Dec. 31, 2025 |  |
Underwritten Public Offering | 2020 Stock Purchase Warrant |  |  |
Class of Warrant or Right [Line Items] |  |  |
Warrants to purchase common stock exercised, shares |  | 11,663,387 |
Proceeds from exercise of warrants |  | $ 15,163,000 |
Warrants to purchase common stock, shares |  | 44,110,079 |
Underwritten Public Offering | Stock Purchase Warrants |  |  |
Class of Warrant or Right [Line Items] |  |  |
Warrants to purchase common stock exercised, shares | 77,349,859 |  |
Proceeds from exercise of warrants | $ 105,912,000 |  |

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- Definition Exercise price per share or per unit of warrants or rights outstanding. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481112/505-10-50-3 + Details
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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 -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481112/505-10-50-3 + Details
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