v3.20.1
Compensation Plans - Valuation Assumptions (Details)
12 Months Ended
Dec. 31, 2019
Expected volatility 85.00%
Expected dividend yield 0.00%
Risk-free interest rate, minimum 1.49%
Risk-free interest rate, maximum 2.49%
Minimum  
Expected term 2 years 6 months
Maximum  
Expected term 7 years 9 months