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STOCKHOLDERS' EQUITY (Common Stock, 2018 Purchase Agreement and LP Purchase Agreement) (Details) - USD ($) | 1 Months Ended | 3 Months Ended | 4 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | ---
May 12, 2023 | Mar. 31, 2023 | Mar. 31, 2022 | May 12, 2023 | Dec. 31, 2022 | Dec. 20, 2018 | Dec. 19, 2018
Class of Stock [Line Items] |  |  |  |  |  |  |
Common stock, shares authorized (in shares) |  | 150,000,000 |  |  | 150,000,000 | 250,000,000 | 150,000,000
Issuance of common stock in connection with at the market offering, net of issuance costs |  | $ 438,000 |  |  |  |  |
Shares issued (in shares) |  | 23,364,086 |  |  | 22,820,260 |  |
Common stock, shares outstanding (in shares) |  | 23,364,086 |  |  | 22,820,260 |  |
Issuance of common stock, net of issuance costs |  | $ 438,000 |  |  |  |  |
Common Stock [Member] |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |
Proceeds upon issuance of common stock from exercise of warrants (in shares) |  |  | 266 |  |  |  |
Issuance of common stock in connection with at the market offering, net of issuance costs |  | $ 5,000 |  |  |  |  |
Shares issued (in shares) |  | 543,826 |  |  |  |  |
Common Stock [Member] |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |
Proceeds upon issuance of common stock from exercise of warrants (in shares) |  | 0 | 266 |  |  |  |
Warrant exercises in period |  | 0 | 266 |  |  |  |
Preferred Class B |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |
Conversion price (in dollars per share) |  | $ 0.40 |  |  |  |  |
Subsequent Events [Member] |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |
Shares issued (in shares) | 72,712 |  |  | 5,202,561 |  |  |
Maximum [Member] | Common Stock [Member] |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |
Proceeds from exercise of warrants |  |  | $ 1,000 |  |  |  |

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