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Loss Per Share | 12 Months Ended
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Dec. 31, 2015
Loss Per Share [Abstract] |
Loss Per Share [Text Block] | Loss Per Share For the years ended December 31, 2015, 2014, and 2013 the Company incurred net losses and therefore no common stock equivalents were utilized in the calculation of loss per share as they are anti-dilutive in the periods presented. At December 31, 2015, 2014, and 2013 the Company excluded the following potentially dilutive securities:
| December 31,
| 2015 |  | 2014 |  | 2013
Stock Options | 6,663,270 |  |  | 4,427,276 |  |  | 2,932,191 |
Warrants | 3,214,033 |  |  | 3,550,956 |  |  | 4,898,266 |
Restricted Shares | 202,776 |  |  | 280,481 |  |  | 78,500 |
ScheduleOfDilutiveSecuritiesExcludedFromComputationOfEarningsPerShare [Table Text Block] | At December 31, 2015, 2014, and 2013 the Company excluded the following potentially dilutive securities:
| December 31,
| 2015 |  | 2014 |  | 2013
Stock Options | 6,663,270 |  |  | 4,427,276 |  |  | 2,932,191 |
Warrants | 3,214,033 |  |  | 3,550,956 |  |  | 4,898,266 |
Restricted Shares | 202,776 |  |  | 280,481 |  |  | 78,500 |

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