Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation and Other Benefit Plans (Stock Option Valuation Assumptions) (Details)

v3.21.2
Stock-Based Compensation and Other Benefit Plans (Stock Option Valuation Assumptions) (Details) - $ / shares
6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Valuation of the options granted    
Weighted average exercise price - ($/share) $ 3.14 $ 1.23
Expected life in years 6 years 6 years
Average expected volatility 75.00% 74.00%
Risk-free interest rate 0.95% 0.42%
Weighted average grant date fair value - ($/share) $ 2.07 $ 0.79