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Liquidity (Details Narrative) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017 | Dec. 31, 2017 | Dec. 31, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract] |  |  |  |  |  |
Cash and cash equivalents | $ 2,993 | $ 1,814 | $ 2,993 | $ 1,814 | $ 3,277 | $ 2,518
Working capital | 3,600 |  | 3,600 |  |  |
Net loss | $ (467) | $ 382 | 950 | 787 |  |
Cash in operating activities |  |  | $ 928 | $ 706 |  |

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