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Capital Stock (Tables) | 12 Months Ended
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Dec. 31, 2018
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, 2016 |  | 4,096,818 |  |  | 3.94 |  | 1,072,653 |  |  | 3.15 |  | 182,150 |  |  | 4.81
| Granted |  | 237,700 |  |  | 3.24 |  | 1,298,371 |  |  | 2.49 |  | - |  |  | -
| Exercised |  | (143,391) |  |  | 2.48 |  | - |  |  | - |  | - |  |  | -
| Vested (RSUs) |  | - |  |  | - |  | (488,570) |  |  | 3.08 |  | - |  |  | -
| Cancelled / forfeited |  | (410,883) |  |  | 3.93 |  | (85,527) |  |  | 3.05 |  | (18,023) |  |  | 4.81
Balance at December 31, 2017 |  | 3,780,244 |  | $ | 3.95 |  | 1,796,927 |  | $ | 2.69 |  | 164,127 |  | $ | 4.81
| Granted |  | 104,585 |  |  | 4.48 |  | 639,126 |  |  | 4.31 |  | 156,944 |  |  | 4.19
| Exercised |  | (1,696,255) |  |  | 3.50 |  | - |  |  | - |  | - |  |  | -
| Vested (RSUs) |  | - |  |  | - |  | (845,326) |  |  | 2.88 |  | (69,667) |  |  | 4.81
| Cancelled / forfeited |  | (231,842) |  |  | 4.96 |  | (356,965) |  |  | 2.84 |  | (134,460) |  |  | 4.63
Balance at December 31, 2018 |  | 1,956,732 |  | $ | 4.25 |  | 1,233,762 |  | $ | 3.36 |  | 116,944 |  | $ | 4.19
Stock Based Compensation Expense Activity By Function [Table Text Block] |
|  | Year Ended
|  | December 31,
|  | 2018 |  |  | 2017
| (in thousands)
Cost of revenues | $ | 64 |  | $ | 61
Sales and marketing |  | 431 |  |  | 488
General and administrative |  | 2,232 |  |  | 2,695
Research and development |  | 167 |  |  | 139
Discontinued operations |  | 150 |  |  | 117
Total stock-based compensation | $ | 3,044 |  | $ | 3,500
Basic and Diluted Shares [Table Text Block] |
|  | Year Ended |
|  | December 31, |
|  | 2018 |  | 2017 |
Basic |  | 36,453,126 |  | 34,753,325 |
Effect of assumed conversion of employee and director stock options, restricted stock units and Market Condition RSUs |  | - |  | - |
Diluted |  | 36,453,126 |  | 34,753,325 |
Schedule of Summary of Outstanding and Exercisable Options [Table Text Block] |
|  |  | Options Outstanding |  | Options Exercisable
|  |  |  |  | Weighted |  |  |  |  |  |  |  | Weighted |  |  |  |
|  |  |  |  | Average |  | Weighted |  |  |  |  |  | Average |  | Weighted |  |
| Range of |  | Shares |  | Remaining |  | Average |  | Aggregate |  | Shares |  | Remaining |  | Average |  | Aggregate
| Exercise |  | Outstanding at |  | Contractual Life |  | Exercise |  | Intrinsic |  | Exercisable at |  | Contractual Life |  | Exercise |  | Intrinsic
| Price |  | Dec. 31, 2018 |  | in Years |  | Price |  | Value |  | Dec. 31, 2018 |  | in Years |  | Price |  | Value
$ | 2.28-3.29 |  | 204,476 |  | 4.74 | $ | 2.71 | $ | 96 |  | 160,851 |  | 3.89 | $ | 2.66 | $ | 84
| 3.30-3.49 |  | 175,200 |  | 8.83 |  | 3.33 |  | - |  | 58,400 |  | 8.83 |  | 3.33 |  | -
| 3.50-3.92 |  | 159,037 |  | 5.95 |  | 3.68 |  | - |  | 114,452 |  | 4.41 |  | 3.64 |  | -
| 3.93-4.08 |  | 79,019 |  | 2.42 |  | 4.04 |  | - |  | 79,019 |  | 2.42 |  | 4.04 |  | -
| 4.09-4.17 |  | 402,325 |  | 5.41 |  | 4.12 |  | - |  | 402,325 |  | 5.41 |  | 4.12 |  | -
| 4.18-4.26 |  | 49,000 |  | 5.75 |  | 4.21 |  | - |  | 49,000 |  | 5.75 |  | 4.21 |  | -
| 4.27-4.38 |  | 350,000 |  | 4.88 |  | 4.31 |  | - |  | 350,000 |  | 4.88 |  | 4.31 |  | -
| 4.39-5.39 |  | 146,550 |  | 6.65 |  | 4.95 |  | - |  | 121,550 |  | 6.09 |  | 5.05 |  | -
| 5.40-5.54 |  | 203,625 |  | 6.18 |  | 5.51 |  | - |  | 144,375 |  | 6.18 |  | 5.51 |  | -
| 5.55-5.75 |  | 187,500 |  | 6.77 |  | 5.58 |  | - |  | 125,625 |  | 6.43 |  | 5.56 |  | -
$ | 2.28-5.75 |  | 1,956,732 |  | 5.79 | $ | 4.25 | $ | 96 |  | 1,605,597 |  | 5.26 | $ | 4.26 | $ | 84
Black-Scholes option pricing model [Member] |
Share-Based Compensation Arrangement By Share-Based Payment Award [Line Items] |
Table Of Assumptions [Table Text Block] |
|  | Year Ended
|  | December 31,
|  | 2018 |  | 2017
Volatility |  | 43.28 | % |  | 41.63 | %
Risk-free interest rate |  | 2.84 | % |  | 2.03 | %
Expected holding period (in years) |  | 4.83 | years |  | 5.41 | 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] |
| Year Ended |
| December 31, |
| 2018 |
Volatility | 44.02 | % |
Risk-free interest rate | 2.27 | % |
Correlation coefficient | 0.07 | % |
Dividend yield | - | % |

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