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Stockholders' Equity (Details 2) (Stock Option [Member], USD $)
6 Months Ended 12 Months Ended
Jun. 30, 2014
Dec. 31, 2013
Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Current price of common stock $ 2.00 $ 0.80 $ 0.03
Risk free interest rate   1.40% 0.60%
Dividend yield 0.00% 0.00% 0.00%
Volatility     82.00%
Volatility, minimum 76.00% 73.00%  
Volatility, maximum 77.00% 80.00%  
Expected term (in years) 6 years 3 months   5 years 9 months
Maximum [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Risk free interest rate 1.60%    
Expected term (in years)   10 years  
Minimum [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Risk free interest rate 1.50%    
Expected term (in years)   5 years 9 months