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Stockholders' Equity (Details Narrative) - USD ($) $ / shares in Units, $ in Thousands |  |  |  | 1 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | ---
Nov. 02, 2016 | Jun. 16, 2016 | Jun. 03, 2016 | Apr. 30, 2015 | Sep. 30, 2014 | Aug. 30, 2014 | Jun. 30, 2010 | Sep. 30, 2004 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2013 | Dec. 31, 2009
Common stock at purchase price per share | $ 6.64 |  |  |  |  |  |  |  |  |  |  |
Sale of stock common, shares | 412,071 |  |  |  |  |  |  |  |  |  |  |
Proceeds from offering expenses | $ 2,700 |  |  |  |  |  |  |  |  |  |  |
Reverse stock split |  | On June 16, 2016 (the “Effective Date”), the Company filed with the Secretary of State of Delaware the amendment to its restated certificate of incorporation to effect the reverse/forward split. The 1-100 reverse split was effective at 6:00 p.m. Eastern Time on the Effective Date and the 2-for-1 forward split was effective at 6:01 p.m. Eastern Time on the Effective Date. | At the Company’s annual meeting of stockholders held on June 3, 2016, the Company’s stockholders approved an amendment to the Company’s restated certificate of incorporation to give effect to, first, a reverse split of the Company’s outstanding common stock at an exchange ratio of 1-for-100 and, then, immediately following such reverse split, a forward split of its outstanding common stock at a ratio that is not less than 2-for-1 nor greater than 4-for-1, with the final ratio to be selected by the Company’s board of directors in its sole discretion. The board of directors set the final ratio of the forward split at 2-for-1. The Company refers to the reverse split and to the forward split, together, as the “reverse/forward split.” |  |  |  |  |  | As of immediately prior to the reverse split/forward split on the Effective Date, the Company had 92,439,174 of common stock outstanding, and subsequent to the reverse/forward split, it had 1,848,597 shares of common stock outstanding. Approximately $3,000 was paid to cashed-out stockholders who owned less than 100 shares immediately prior to the reverse split on the Effective Date. |  |  |
Fractional share cash for each such share held price per share |  | $ 0.12 |  |  |  |  |  |  |  |  |  |
Common stock, shares outstanding |  | 92,439,174 |  |  |  |  |  |  | 2,261,000 | 1,849,000 |  |
Paid to cashed out stockholders |  |  |  |  |  |  |  |  | $ 3 |  |  |
Number of shares owned by stockholders |  |  |  |  |  |  |  |  | 100,000 |  |  |
Common stock par value |  |  |  |  |  |  |  |  | $ 0.005 | $ 0.005 |  |
Option issued to purchase number of additional common stock |  |  |  |  |  |  |  |  |  | 2,000 |  |
Stock-based compensation |  |  |  |  |  |  |  |  | $ 419 | $ 456 |  |
Closing stock price per share |  |  |  |  |  |  |  |  | $ 8.50 |  |  |
Aggregate intrinsic value of options exercised |  |  |  |  |  |  |  |  | $ 7 |  |  |
Number of common stock issued during period |  |  |  |  |  |  |  |  | 18,000 | 360 |  |
Option exercised during period, value |  |  |  |  |  |  |  |  |  | $ 1 |  |
Number of option exercised during period |  |  |  |  |  |  |  |  |  | 43 |  |
Weighted average grant-date fair value per share price |  |  |  |  |  |  |  |  | $ 6.48 | $ 12.74 |  |
Unamortized compensation expense |  |  |  |  |  |  |  |  | $ 647 |  |  |
Unamortized compensation expense remaining service period |  |  |  |  |  |  |  |  | 2 years 1 month 2 days |  |  |
Preferred Stock authorized |  |  |  |  |  |  |  |  | 5,000,000 | 5,000,000 |  |
Preferred stock shares issued |  |  |  |  |  |  |  |  | 156,000 | 156,000 |  |
Preferred Stock, shares outstanding |  |  |  |  |  |  |  |  | 156,000 | 156,000 |  |
Payment of dividend |  |  |  |  |  |  |  |  | $ 16 |  |  |
Common stock shares issued |  |  |  |  |  |  |  |  | 2,261,000 | 1,849,000 |  |
Preferred Stock, Liquidation Preference Per Share |  |  |  |  |  |  |  |  | $ 156 | $ 156 |  |
Preferred Stock |  |  |  |  |  |  |  |  |  |  |  |
Preferred Stock authorized |  |  |  |  |  |  |  |  | 10,000,000 |  |  |
Series A Cumulative Convertible Preferred Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |
Option exercised during period, value |  |  |  |  |  |  |  |  |  |  |  |
Preferred Stock authorized |  |  |  |  |  |  |  |  | 5,000,000 |  |  |
Preferred stock shares issued |  |  |  |  |  |  |  |  | 156,000 | 156,000 |  |
Preferred Stock, shares outstanding |  |  |  |  |  |  |  |  | 156,000 | 156,000 |  |
Dividends payable per share |  |  |  |  |  |  |  |  | $ 0.10 | $ 0.10 |  |
Common Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |
Option exercised during period, value |  |  |  |  |  |  |  |  |  |  |  |
Common stock shares issued |  |  |  |  |  |  |  |  |  | 1,000 |  |
Preferred Stock, Liquidation Preference Per Share |  |  |  |  |  |  |  |  | $ 1.00 |  |  |
Warrants [Member] |  |  |  |  |  |  |  |  |  |  |  |
Warrants issued to purchase number of common stock |  |  |  |  |  |  |  |  |  |  | 72,000 | 60,000
Fair value of the warrants |  |  |  |  |  |  |  |  |  |  | $ 1,379 | $ 537
Risk-free interest rates |  |  |  |  |  |  |  |  |  |  | 1.06% | 2.79%
Dividend yield |  |  |  |  |  |  |  |  |  |  | 0.00% | 0.00%
Expected volatility |  |  |  |  |  |  |  |  |  |  | 80.25% | 78.10%
Term of weighted-average assumptions |  |  |  |  |  |  |  |  |  |  | 5 years | 8 years
2004 Performance Incentive Plan [Member] |  |  |  |  |  |  |  |  |  |  |  |
Maximum number of shares authorized to issue |  |  |  |  |  |  |  | 50,000 |  |  |  |
Options outstanding |  |  |  |  |  |  |  |  | 1,000 |  |  |
2010 Amended Performance Incentive Plan [Member] |  |  |  |  |  |  |  |  |  |  |  |
Maximum number of shares authorized to issue |  |  |  |  |  |  | 120,000 |  |  |  |  |
Options outstanding |  |  |  |  |  |  |  |  | 79,000 |  |  |
Incentive plan expiry description |  |  |  |  |  |  | The Amended 2010 Plan expires in February 2020. |  |  |  |  |
2010 Amended Performance Incentive Plan [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |
Maximum number of shares authorized to issue |  |  |  |  |  |  | 120,000 |  |  |  |  |
2010 Amended Performance Incentive Plan [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |
Maximum number of shares authorized to issue |  |  |  |  |  |  | 240,000 |  |  |  |  |
2014 Inducement Plan [Member] |  |  |  |  |  |  |  |  |  |  |  |
Maximum number of shares authorized to issue |  |  |  |  |  | 85,000 |  |  |  |  |  |
Incentive plan expiry description |  |  |  |  |  | The 2014 Plan expires in September 2024. |  |  |  |  |  |
2014 Inducement Plan [Member] | Mr Krishnan [Member] |  |  |  |  |  |  |  |  |  |  |  |
Option issued to purchase number of additional common stock |  |  |  | 15,000 | 70,000 |  |  |  |  |  |  |
2014 Inducement Plan [Member] | First Anniversary [Member] |  |  |  |  |  |  |  |  |  |  |  |
Option expected to vest during period, percentage |  |  |  | 25.00% |  |  |  |  |  |  |  |
2014 Inducement Plan [Member] | 36 Substantially Equal Monthly Installments Thereafter [Member] |  |  |  |  |  |  |  |  |  |  |  |
Option expected to vest during period, percentage |  |  |  | 75.00% |  |  |  |  |  |  |  |

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