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Capital Stock (Tables) | 3 Months Ended
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Mar. 31, 2019
Capital Stock Disclosure [Abstract] |
Schedule Of Stock Options And Restricted Stock Units Activity Rollforward [Table Text Block] |
|  |  | Stock Options |  | Restricted Stock Units |  | Market Condition RSU's
|  |  |  |  |  | Weighted |  |  |  |  |  |  |  |  |  |
|  |  | Stock |  |  | Average |  | Restricted |  |  |  |  | Market |  |  |
|  |  | Options |  |  | Exercise |  | Stock Units |  |  | Grant Date |  | Condition RSU's |  |  | Grant Date
|  |  | Outstanding |  |  | Price |  | Outstanding |  |  | Fair Value |  | Outstanding |  |  | Fair Value
Balance at December 31, 2018 |  | 1,956,732 |  | $ | 4.25 |  | 1,233,762 |  | $ | 3.36 |  | 116,944 |  | $ | 4.19
| Granted |  | 559,909 |  |  | 3.80 |  | 383,827 |  |  | 3.67 |  | 75,514 |  |  | 4.16
| Exercised |  | (2,500) |  |  | 3.25 |  | - |  |  | - |  | - |  |  | -
| Vested (RSUs) |  | - |  |  | - |  | (439,875) |  |  | 3.26 |  | - |  |  | -
| Cancelled / forfeited |  | (75,000) |  |  | 4.66 |  | (95,509) |  |  | 2.83 |  | (22,500) |  |  | 4.19
Balance at March 31, 2019 |  | 2,439,141 |  | $ | 4.13 |  | 1,082,205 |  | $ | 3.56 |  | 169,958 |  | $ | 4.18
Stock Based Compensation Expense Activity By Function [Table Text Block] |
|  | Three Months Ended |
|  | March 31, |
|  | 2019 |  |  | 2018 |
|  | (in thousands)
Cost of revenues | $ | 13 |  | $ | 11 |
Sales and marketing |  | (7) |  |  | 124 |
General and administrative |  | 551 |  |  | 697 |
Research and development |  | 34 |  |  | 30 |
Discontinued operations |  | - |  |  | 150 |
Total stock-based compensation | $ | 591 |  | $ | 1,012 |
Basic and Diluted Shares [Table Text Block] |
|  | Three Months Ended
|  | March 31,
|  | 2019 |  | 2018
Basic |  | 37,644,684 |  | 35,462,989
Effect of assumed conversion of employee and director stock options, restricted stock units and Market Condition RSUs |  | - |  | -
Diluted |  | 37,644,684 |  | 35,462,989
Black-Scholes option pricing model [Member] |
Share-Based Compensation Arrangement By Share-Based Payment Award [Line Items] |
Table Of Assumptions [Table Text Block] |
| Three Months Ended
| March 31,
| 2019 |
Volatility | 45.58 | % |
Risk-free interest rate | 2.44 | % |
Expected holding period (in years) | 4.73 | years |
Dividend yield | - | % |
Monte-Carlo valuation simulation [Member] |
Share-Based Compensation Arrangement By Share-Based Payment Award [Line Items] |
Table Of Assumptions [Table Text Block] |
| Three Months Ended |
| March 31, |
| 2019 |
Volatility | 48.00 | % |
Risk-free interest rate | 2.50 | % |
Correlation coefficient | 0.27 | % |
Dividend yield | - | % |

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