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Stockholder's Equity - Schedule of Weighted-average Assumptions Used in Black-scholes Valuation Method (Details)
6 Months Ended
Jun. 30, 2019
$ / shares
Warrant [Member]  
Risk-free interest rate 2.51%
Expected term (in years) 3 years
Expected dividend yield 0.00%
Expected volatility 31.00%
Fair value of common stock $ 6.10
Stock Option [Member]  
Risk-free interest rate 2.22%
Expected term (in years) 6 years 6 months
Expected dividend yield 0.00%
Expected volatility 31.00%