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INCOME TAXES (Reconciliation of the Provision for Income Taxes) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019
INCOME TAXES [Abstract] |  |
Benefit at federal rate | $ (2,231) | $ (2,796)
State income taxes-net of federal benefit | (379) | (517)
Miscellaneous permanent differences | 48 | 78
Warrant liability revaluation | (3) | (104)
Meals and entertainment | 18 |
Impairment of in-process research and development |  | (70)
Change in valuation allowance | $ 2,547 | 3,339
Income Tax Expense (Benefit), Total |  | $ (70)

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