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INCOME TAXES (Narrative) (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Income tax expense | $ (70) | $ (279) |
Income tax, interest and penalties | 0 | 0 |
Net deferred tax assets | 10,704 | 8,708 |
Deferred Tax Assets, Valuation Allowance | 10,704 | 8,778 |
Deferred Tax Liabilities, Deferred Expense, Capitalized Research and Development Costs |  | 70 |
Increase in valuation allowance | 1,900 |  |
Gross federal and state net operating loss ("NOL") carryforwards |  | 61,000 | $ 39,000
Intangible assets | 4,148 | 2,084 |
Federal losses | (70) | (279) |
Federal |  |  |
Federal losses |  | 31,000 |
Internal Revenue Service (IRS) [Member] |  |  |
Operating Loss Carryforwards | $ 59,011 | $ 38,049 |

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