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BUSINESS DESCRIPTION (Narrative) (Details) - USD ($) |  | 12 Months Ended |  |
--- | --- | --- | --- | ---
Apr. 02, 2021 | Dec. 31, 2021 | Dec. 31, 2020 | Apr. 30, 2020 | Apr. 13, 2020
Business Acquisition [Line Items] |  |  |  |  |
Net loss |  | $ 8,500,000 |  |  |
Working deficiency |  | 9,300,000 |  |  |
Net cash used in operating activities |  | (6,577,000) | $ (7,434,000) |  |
Proceeds from issuance of common stock |  | $ 16,207,000 | $ 8,929,000 |  |
Common stock, par value |  | $ 0.01 | $ 0.01 |  |
Sales Agreement with Alliance Global Partners |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Proceeds from issuance of common stock | $ 15,400,000 |  |  |  |
Maximum aggregate initial offering price |  |  |  |  | $ 50,000,000.0
Common stock, par value | $ 0.01 |  |  |  |
Sale of common stock | 4,501,000 |  |  |  |
Additional shares available for future sales | $ 6,600,000 |  |  |  |
Sales Agreement with Alliance Global Partners | Maximum [Member] |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Proceeds from issuance of common stock | $ 22,000,000.0 |  |  |  |
Joint Venture [Member] |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Percentage of interest in joint venture |  |  |  | 49.00% |
Joint Venture [Member] | Popular Healthcare PLLC [Member] |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Percentage of interest in joint venture |  |  |  | 51.00% |
Joint Venture [Member] | Poplar Put Right [Member] | Scenario, Plan [Member] |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Percentage of interest in joint venture |  |  |  | 100.00% |
Price per share |  |  |  | $ 1.00 |
Purchase price |  |  |  | $ 51 |

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