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Warrants (Tables) (Warrant [Member])
12 Months Ended
Dec. 31, 2013
Warrant [Member]
 
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Significant assumptions used to measure the fair value of warrants
  
2013
  
2012
 
Stock price
 
$
0.21
  
$
0.30
 
Term
 
1.83-4.79 Years
  
2.84-5 Years
 
Volatility
  
50
%
  
50
%
Risk-free interest rate
  
0.38-1.75
%
  
0.36-0.72
%
Exercise prices
 
$
0.25-0.4488
  
$
0.25-0.4488
 
Dividend yield
  
0.00
%
  
0.00
Delta
  
0.03-0.08
   
0.08
 
Up ratio
  
1.087-1.137
   
1.144
 
Down ratio
  
0.861-0.913
   
0.857
 
Up transition probability
  
0.500
   
0.500