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Stock Options (Narrative) (Details) |  |  |  | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Mar. 21, 2016 | Jan. 04, 2016 $ / shares shares | Feb. 01, 2008 shares | Dec. 31, 2015 USD ($) $ / shares | Dec. 31, 2014 USD ($) $ / shares | Dec. 31, 2013 USD ($) | Oct. 25, 2000 shares
Stock Options [Line Items] |  |  |  |  |  |  |
Number of shares that may be granted | shares |  |  |  |  |  |  | 7,000,000
Number of additional shares that may be granted | shares |  |  | 3,500,000 |  |  |  |
Stock Incentive Plan term |  |  |  | 10 years |  |  |
Purchase price floor of fair market value |  |  |  | 85.00% |  |  |
Weighted average fair value of options granted | $ / shares |  |  |  | $ 2.40 | $ 2.20 |  |
Compensation expense |  |  |  | $ 12,000 | $ 32,000 | $ 50,000 |
Expected volatility |  |  |  | 61.70% | 53.30% | 47.60% |
Risk free interest rate |  |  |  | 2.53% | 3.27% | 2.97% |
Stock Options [Member] |  |  |  |  |  |  |
Stock Options [Line Items] |  |  |  |  |  |  |
Compensation expense |  |  |  | $ 12,000 | $ 32,000 | $ (28,000) |
Current year compensation expense |  |  |  |  |  | 32,000 |
Reversal of compensation expense |  |  |  |  |  | $ 59,500 |
Minimum [Member] |  |  |  |  |  |  |
Stock Options [Line Items] |  |  |  |  |  |  |
Voting power |  |  |  | 10.00% |  |  |
option life remaining |  |  |  | 3 months 18 days | 1 month 6 days | 1 month 6 days |
Maximum [Member] |  |  |  |  |  |  |
Stock Options [Line Items] |  |  |  |  |  |  |
option life remaining |  |  |  | 4 years 9 months 18 days | 4 years 9 months 18 days | 4 years 9 months 18 days |
Voluntary Resignation [Member] |  |  |  |  |  |  |
Stock Options [Line Items] |  |  |  |  |  |  |
Stock Incentive Plan exercisable period |  |  |  | 3 months |  |  |
10% Of Total Voting Power [Member] |  |  |  |  |  |  |
Stock Options [Line Items] |  |  |  |  |  |  |
Stock Incentive Plan exercisable period |  |  |  | 5 years |  |  |
Purchase price floor of fair market value |  |  |  | 110.00% |  |  |
Subsequent Event [Member] |  |  |  |  |  |  |
Stock Options [Line Items] |  |  |  |  |  |  |
Options issued to purchase | shares |  | 2,500 |  |  |  |  |
Price per share | $ / shares |  | $ 1.20 |  |  |  |  |
Reverse stock split | 0.1 |  |  |  |  |  |

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