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STOCKHOLDERS' EQUITY (Common Stock, 2018 Purchase Agreement and LP Purchase Agreement) (Details) $ / shares in Units, $ in Thousands |  | 3 Months Ended | 9 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | ---
Sep. 21, 2023 | Sep. 30, 2023 $ / shares shares | Sep. 30, 2022 USD ($) shares | Sep. 30, 2023 USD ($) $ / shares shares | Sep. 30, 2022 USD ($) shares | Dec. 31, 2022 shares | Dec. 20, 2018 shares | Dec. 19, 2018 shares
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Common stock, shares authorized (in shares) |  |  | 150,000,000 |  | 150,000,000 |  | 150,000,000 | 250,000,000 | 150,000,000
Proceeds from exercise of warrants | $ |  |  |  |  |  | $ 11 |  |  |
Reverse stock split |  | 0.05 |  |  |  |  |  |  |
Shares issued (in shares) |  |  | 1,380,555 |  | 1,380,555 |  | 1,141,013 |  |
Common stock, shares outstanding (in shares) |  |  | 1,380,555 |  | 1,380,555 |  | 1,141,013 |  |
Issuance of common stock, net of issuance costs | $ |  |  |  |  | $ 2,245 | $ 129 |  |  |
Common Stock [Member] |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Proceeds upon issuance of common stock from exercise of warrants (in shares) | [1] |  |  | 1,327 |  | 1,340 |  |  |
Shares issued (in shares) | [1] |  |  |  | 30,852 | 4,251 |  |  |
Restricted shares issued (in shares) | [1] |  | 2,492 |  | 2,492 |  |  |  |
Common Stock [Member] |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Proceeds upon issuance of common stock from exercise of warrants (in shares) |  |  | 0 | 1,327 | 0 | 1,340 |  |  |
Warrant exercises in period |  |  |  | 1,327 |  | 1,340 |  |  |
Preferred Class B |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Conversion price (in dollars per share) | $ / shares |  |  | $ 8.00 |  | $ 8.00 |  |  |  |
Maximum [Member] | Common Stock [Member] |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Proceeds from exercise of warrants | $ |  |  |  | $ 11 |  | $ 11 |  |  |
[1] | The common stock and additional paid-in capital for all periods presented reflect the one-for-twenty reverse stock split, which was effected on September 21, 2023.

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