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Stockholders' Equity (Details 2)
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Annual dividend 0.00% 0.00%
Risk free interest rate, minimum 1.20% 1.50%
Risk free interest rate, maximum 2.20% 1.90%
Expected volatility, minimum 42.00% 47.70%
Expected volatility, maximum 49.80% 65.00%
Minimum [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Expected life (in years) 5 years 3 months 5 years 6 months
Maximum [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Expected life (in years) 6 years 3 months 6 years 3 months