Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation - Schedule of Assumptions Used in Black-Scholes Option-Pricing Method (Details)

v3.20.1
Stock-Based Compensation - Schedule of Assumptions Used in Black-Scholes Option-Pricing Method (Details) - $ / shares
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Expected dividend yield 0.00% 0.00%
Expected stock-price volatility 80.33%  
Expected stock-price volatility, minimum   13.52%
Expected stock-price volatility, maximum   23.39%
Risk-free interest rate 1.60%  
Risk-free interest rate, minimum   2.41%
Risk-free interest rate, maximum   2.60%
Expected average term of options 5 years 7 years 6 months
Stock price $ 0.23  
Minimum [Member]    
Stock price   $ 0.60
Maximum [Member]    
Stock price   $ 0.87