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Stockholders' Equity - Schedule of Fair Value of Option Grant Estimated Using Black-Scholes Option Pricing Model (Details)
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Annual dividend 0.00% 0.00%
Risk free interest rate, minimum 2.50% 1.80%
Risk free interest rate, maximum 2.90% 2.30%
Expected volatility, minimum 46.00% 44.20%
Expected volatility, maximum 49.60% 53.00%
Maximum [Member]    
Expected life (in years) 6 years 3 months 6 years 3 months
Minimum [Member]    
Expected life (in years) 5 years 3 months 5 years 3 months