Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation - Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions (Details)

v3.20.4
Stock-Based Compensation - Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions (Details)
6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Share-based Payment Arrangement [Abstract]    
Risk-free interest rate 1.20% 2.51%
Expected life 5 years 10 months 25 days 6 years
Expected volatility 124.16% 127.81%
Dividend yield 0.00% 0.00%