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Stockholders' Equity (Details 2)
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Equity [Abstract]    
Risk-free interest rate 0.78% 2.59%
Dividend yield 0.00% 0.00%
Expected volatility 52.00% 51.00%
Expected life 6 years 6 months 4 years