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Significant Accounting Policies (Details Textual) $ in Thousands | 12 Months Ended
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Dec. 31, 2018 USD ($) Segments shares | Dec. 31, 2017 USD ($) shares | Dec. 31, 2016 USD ($) shares
Significant Accounting Policies (Textual) |  |  |
Inventory write-off | $ 52 | $ 75 |
WACC | 15.00% |  |
Long-term growth rate | 2.00% |  |
Severance costs | $ 210 | 451 | $ 240
Allowance for doubtful accounts | $ 17 | $ 27 | $ 10
Number of operating segments | Segments | 2 |  |
Anti-dilutive securities | shares | 294,250 | 314,125 | 283,670
Derivative liability | $ 87 | $ 30 |
Material assumptions used for income approach period | 5 years |  |
Income tax likelihood percentage, description | The tax benefit as the largest amount which is more than 50% likely of being realized upon ultimate settlement. |  |
Fair value of goodwill |  | $ 4,700 |
Deferred revenues | $ 243 |  |
Deferred revenues from service contracts | $ 408 |  |

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