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Capital Stock, Stock Plans and Stock-Based Compensation (Details Narrative) - USD ($) |  |  |  | 3 Months Ended | 6 Months Ended
--- | --- | --- | --- | --- | ---
May 01, 2018 | Jan. 18, 2018 | Jan. 13, 2017 | Jan. 13, 2017 | Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017
Non-qualified stock options, shares, granted |  |  |  |  |  |  | 6,000 | 6,000
Stock options, grants in period, exercise price |  |  |  |  |  |  | $ 4.05 | $ 3.79
Unrecognized compensation cost related to unvested options |  |  |  |  | $ 503,000 |  | $ 503,000 |
Employee and director service share-based compensation nonvested awards, compensation not yet recognized, stock options, remainder of fiscal year |  |  |  |  | 75,000 |  | 75,000 |
Employee and director service share-based compensation nonvested awards, compensation not yet recognized, stock options, year two |  |  |  |  | 126,000 |  | 126,000 |
Employee and director service share-based compensation nonvested awards, compensation not yet recognized, stock options, year three |  |  |  |  | 114,000 |  | 114,000 |
Employee and director service share-based compensation nonvested awards, compensation not yet recognized, stock options, year four |  |  |  |  | 114,000 |  | 114,000 |
Employee and director service share-based compensation nonvested awards, compensation not yet recognized, stock options, year five |  |  |  |  | 74,000 |  | 74,000 |
Allocated share-based compensation expense |  |  |  |  | 45,000 | $ 19,000 | $ 91,000 | $ 41,000
Exercised option to purchase of common stock |  |  |  |  |  |  | 10,000 |
Exercised option price per share |  |  |  |  |  |  | $ 3.65 |
Employee Stock Options [Member] |  |  |  |  |  |  |  |
Allocated share-based compensation expense |  |  |  |  | $ 37,000 | $ 11,000 | $ 73,000 | $ 21,000
2003 Outside Directors Stock Plan [Member] |  |  |  |  |  |  |  |
Stock issued during period, shares, issued for services |  |  |  |  |  |  | 31,567 |
Allocated share-based compensation expense |  |  |  |  |  |  | $ 130,000 |
2003 Outside Directors Stock Plan [Member] | New Director [Member] |  |  |  |  |  |  |  |
Non-qualified stock options, shares, granted |  | 6,000 | 6,000 |  |  |  |  |
Stock options granted contractual term |  | 10 years | 10 years |  |  |  |  |
Stock options, grants in period, exercise price |  | $ 4.05 | $ 3.79 |  |  |  |  |
2003 Outside Directors Stock Plan [Member] | New Director [Member] | Employee Stock Options [Member] |  |  |  |  |  |  |  |
Stock options granted vesting period |  | 6 months |  | 6 months |  |  |  |
2017 Stock Option Plan [Member] | Robert Ferguson [Member] |  |  |  |  |  |  |  |
Exercised option to purchase of common stock | 10,000 |  |  |  |  |  |  |
Exercised option price per share | $ 3.65 |  |  |  |  |  |  |
Proceeds from stock option exercised | $ 36,500 |  |  |  |  |  |  |

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