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Warrants (Tables) (Warrant [Member])
3 Months Ended
Mar. 31, 2014
Warrant [Member]
 
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Significant assumptions used to measure the fair value of warrants
 
  
2014
  
2013
 
Stock price
 
$
0.25
  
$
0.21
 
Term
 
1.58 - 4.25 Years
  
1.83 – 4.79 Years
 
Volatility
  
  50
%
  
50
%
Risk-free interest rate
  
 0.44 - 1.73
%
  
0.38 – 1.75
%
Exercise prices
 
$
0.25-0.4488
  
$
0.25-0.4488
 
Dividend yield
  
  0.00
%
  
0.00
%
Delta
  
0.03 - 0.08
   
0.03 – 0.08
 
Up ratio
  
1.081 - 1.138
   
1.087 – 1.137
 
Down ratio
  
  0.864 – 0.919
   
0.861 – 0.913
 
Up transition probability
  
  0.500
   
0.500