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Loss Per Share (Tables)
 12 Months Ended
Dec. 31, 2014
Loss Per Share [Abstract]  
Loss Per Share [Text Block]
Loss Per Share
 
For the years ended December 31, 2014, 2013, and 2012 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, 2014, 2013, and 2012 the Company excluded the following potentially dilutive securities:
 
December 31,
 
2014
 
2013
 
2012
Stock Options
4,427,276

 
2,932,191

 
2,168,668

Warrants
3,550,956

 
4,898,266

 
5,528,761

Restricted Shares
280,481

 
78,500

 
34,250
ScheduleOfDilutiveSecuritiesExcludedFromComputationOfEarningsPerShare [Table Text Block]
At December 31, 2014, 2013, and 2012 the Company excluded the following potentially dilutive securities:
 
December 31,
 
2014
 
2013
 
2012
Stock Options
4,427,276

 
2,932,191

 
2,168,668

Warrants
3,550,956

 
4,898,266

 
5,528,761

Restricted Shares
280,481

 
78,500

 
34,250