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Shareholders' Equity (Details Narrative) - USD ($) $ / shares in Units, $ in Thousands | 1 Months Ended | 12 Months Ended
--- | --- | ---
Oct. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2018 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2013
Sale of stock common, shares |  |  | 346,000 |  |  |
Common stock at purchase price per share |  |  | $ 4.50 |  |  |
Proceeds from offering expenses |  |  | $ 1,375 |  | $ 1,375 |
Share based compensation |  |  |  | $ 206 | $ 443 |
Weighted average grant-date fair value per share price |  |  |  | $ 2.49 | $ 3.90 |
Unamortized compensation expense |  |  |  | $ 8 |  |
Unamortized compensation expense remaining service period |  |  |  | 10 months 25 days |  |
Equity percentage |  |  |  | 51.00% |  |
Restricted stock units vested and settled |  |  |  | 38,000 | 13,000 |
Common stock issued, withholding taxes |  |  |  | 26,000 | 9,000 |
Preferred stock series A, shares authorized |  |  |  | 156,000 | 156,000 |
Preferred stock series A, shares issued |  |  |  | 156,000 | 156,000 |
Preferred stock series A, shares outstanding |  |  |  | 156,000 | 156,000 |
Number of shares converted |  |  |  |  |  |
Restricted Stock Units (RSUs) [Member] |  |  |  |  |  |
Weighted average grant-date fair value per share price |  |  |  | $ 3.35 | $ 5.13 |
Restricted stock units awarded |  |  |  | 77,000 | 74,000 |
Restricted Stock Units [Member] |  |  |  |  |  |
Weighted average grant-date fair value per share price |  |  |  | $ 3.35 | $ 5.13 |
Restricted stock units awarded |  |  |  | 30,000 |  |
Restricted Stock Units [Member] | Six Month Anniversary [Member] |  |  |  |  |  |
Number of restricted stock vesting, percentage |  |  |  | 16.67% |  |
Restricted Stock Units [Member] | Former Chief Executive Officer [Member] |  |  |  |  |  |
Accelerate restricted stock units outstanding | 5,000 | 5,000 |  | 10,000 |  |
Warrants [Member] |  |  |  |  |  |
Warrants issued to purchase number of common stock |  |  |  |  |  | 72,000
Fair value of the warrants |  |  |  |  |  | $ 1,379
Warrants [Member] | Risk Free Interest Rate [Member] |  |  |  |  |  |
Fair value assumptions, measurement input, percentages |  |  |  |  |  | 1.06%
Warrants [Member] | Dividend Yield [Member] |  |  |  |  |  |
Fair value assumptions, measurement input, percentages |  |  |  |  |  | 0.00%
Warrants [Member] | Expected Volatility [Member] |  |  |  |  |  |
Fair value assumptions, measurement input, percentages |  |  |  |  |  | 80.25%
Warrants [Member] | Expected Term [Member] |  |  |  |  |  |
Fair value assumptions, measurement input, term |  |  |  |  |  | 5 years
Series A Cumulative Convertible Preferred Stock [Member] |  |  |  |  |  |
Preferred stock series A, shares authorized |  |  |  | 156,000 | 156,000 |
Preferred stock series A, shares issued |  |  |  | 156,000 | 156,000 |
Preferred stock series A, shares outstanding |  |  |  | 156,000 | 156,000 |
Share price |  |  |  | $ 0.10 |  |
Payment of dividend |  |  |  | $ 16 | $ 16 |
Preferred Stock, Liquidation Preference Per Share |  |  |  | $ 1.00 |  |
Debt instrument, conversion price |  |  |  | $ 13.439 |  |
Number of shares converted |  |  |  | 12,000 |  |
2019 Performance Incentive Plan [Member] |  |  |  |  |  |
Stock option granted terms description |  |  |  | Stock options granted under the 2019 Plan may either be incentive stock options or nonqualified stock options, have a term of up to ten years, and are exercisable at a price per share not less than the fair market value on the date of grant. |  |
2019 Performance Incentive Plan [Member] | Restricted Stock Units (RSUs) [Member] |  |  |  |  |  |
Stock option to purchase common stock |  |  |  | 30,000 |  |
2019 Performance Incentive Plan [Member] | Common Stock [Member] |  |  |  |  |  |
Stock option to purchase common stock |  |  |  | 2,000 |  |
2019 Performance Incentive Plan [Member] | Maximum [Member] |  |  |  |  |  |
Number of option available for grants |  |  |  | 240,000 |  |
2010 Performance Incentive Plan [Member] | Common Stock [Member] |  |  |  |  |  |
Stock option to purchase common stock |  |  |  | 55,000 |  |
2010 Performance Incentive Plan [Member] | Restricted Stock Units [Member] |  |  |  |  |  |
Stock option to purchase common stock |  |  |  | 27,000 |  |
2014 Inducement Plan [Member] | New Employee [Member] |  |  |  |  |  |
Share-based awards, expiration date |  |  |  | Sep. 30, 2024 |  |
2014 Inducement Plan [Member] | Common Stock [Member] |  |  |  |  |  |
Stock option to purchase common stock |  |  |  | 85,000 |  |
2014 Inducement Plan [Member] | Maximum [Member] | New Employee [Member] |  |  |  |  |  |
Number of option available for grants |  |  |  | 85,000 |  |

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