Quarterly report pursuant to Section 13 or 15(d)

Shareholders' Equity and Capital Stock - assumptions (Details)

v3.20.1
Shareholders' Equity and Capital Stock - assumptions (Details)
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Expected option life (in years) 3 years 8 months 5 days  
Expected warrant life (years)   3 years
Expected volatility 59.00%  
Risk-free interest rate 1.60%  
Forfeiture rate (options)   5.80%
Forfeiture rate (RSUs)   5.50%
Maximum    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Expected option life (in years)   3 years 9 months 15 days
Expected volatility   57.00%
Risk-free interest rate   2.20%
Minimum    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Expected option life (in years)   3 years 8 months 27 days
Expected volatility   54.00%
Risk-free interest rate   1.90%