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Stockholders' Equity (Deficit) (Tables)
6 Months Ended 12 Months Ended
Jun. 30, 2015
Dec. 31, 2014
Stockholders' Equity [Abstract]    
Schedule of warrant related activity

 

  Warrant 
Shares
  Weighted 
Average

Exercise Price
 
Outstanding, December 31, 2014  21,212,813  $1.19 
Exercised warrants  (2,500)  0.28 
Warrants issued to vendor  104,315   0.68 
Outstanding, June 30, 2015  21,314,628  $1.19 
Expiring in 2015  285,345     
Expiring in 2016  6,000,000     
Expiring in 2017  7,235,622     
Expiring thereafter  7,793,661
  Warrant Shares  Weighted Average
Exercise Price
 
Outstanding, January 1, 2013  11,916,801   1.71 
Issued  5,100,800   0.28 
Outstanding, December 31, 2013  17,017,601   1.29 
Issued  6,191,500   0.75 
Exercised or cancelled  (1,996,288)  0.36 
Outstanding, December 31, 2014  21,212,813   1.19 
Expiring in 2015  285,345     
Expiring in 2016  -     
Expiring in 2017  7,235,622     
Expiring thereafter  13,691,846