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Shareholders' Equity (Details Narrative) - USD ($) $ / shares in Units, $ in Thousands |  |  | 1 Months Ended | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | --- | --- | ---
Jan. 05, 2018 | Dec. 21, 2016 | May 31, 2018 | Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017 | Dec. 31, 2017
Proceeds from issuance of common stock |  |  |  |  |  | $ 1,666 |  |
Number of share issued |  |  |  |  |  | 1,288,537 |  |
Warrant liability |  |  |  | $ 722 |  | $ 722 |  | $ 1,200
Stock options granted |  |  |  |  |  |  |  |
Stock options exercised |  |  |  |  |  |  |  |
Stock options forfeited |  |  |  |  |  |  |  |
Stock options expired |  |  |  |  |  | 69,225 | 69,225 |
Unrecognized share based compensation |  |  |  |  |  |  |  |
Stock-based compensation |  |  |  | $ 13 | $ 77 | $ 623 | $ 289 |
Common Stock Sales Agreement [Member] |  |  |  |  |  |  |  |
Proceeds from issuance of common stock | $ 2,500 |  |  |  |  |  |  |
Employees [Member] |  |  |  |  |  |  |  |
Number of common stock granted |  |  | 485,168 |  |  |  |  |
Stock-based compensation |  |  | $ 596 |  |  |  |  |
Market Offering [Member] |  |  |  |  |  |  |  |
Net share price |  |  |  | $ 1.41 |  | $ 1.41 |  |
Net proceeds from offering |  |  |  |  |  | $ 1,800 |  |
Available issued by leaving amount |  |  |  |  |  | $ 700 |  |
Registered Direct Offering [Member] |  |  |  |  |  |  |  |
Number of share issued |  | 1,000,000 |  |  |  |  |  |
Net share price |  | $ 1.50 |  |  |  |  |  |
Net proceeds from offering |  | $ 1,320 |  |  |  |  |  |
Common Stock [Member] |  |  |  |  |  |  |  |
Proceeds from issuance of common stock |  |  |  | $ 500 |  |  |  |
Number of share issued |  |  |  | 357,680 |  |  |  |
Net share price |  |  |  | $ 1.52 |  | $ 1.52 |  |
Common Stock [Member] | Registered Direct Offering [Member] |  |  |  |  |  |  |  |
Net proceeds from offering |  | $ 80 |  |  |  |  |  |
Warrant [Member] |  |  |  |  |  |  |  |
Net share price |  | $ 1.28 |  | $ 1.02 |  | $ 1.02 |  |
Warrant [Member] | Registered Direct Offering [Member] |  |  |  |  |  |  |  |
Net proceeds from offering |  | $ 1,240 |  |  |  |  |  |
Number of warrant called |  | 1,000,000 |  |  |  |  |  |
Warrant exercise price |  | $ 2.05 |  |  |  |  |  |
Warrant term |  | 5 years |  |  |  |  |  |
Stock Options [Member] |  |  |  |  |  |  |  |
Unrecognized share based compensation |  |  |  | $ 58 |  | $ 58 |  |
Reduced Original Warrant Agreement [Member] |  |  |  |  |  |  |  |
Warrant exercise price |  |  |  | $ 1.13 |  | $ 1.13 |  |

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