Quarterly report pursuant to Section 13 or 15(d)

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

v3.20.1
Capital Stock, Stock Plans and Stock Based Compensation - Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions (Details) - $ / shares
Feb. 04, 2020
Jan. 17, 2019
Outside Director Stock Options Granted [Member]    
Weighted-average fair value per option $ 4.89  
Risk -free interest rate [1] 1.61%  
Expected volatility of stock [2] 55.83%  
Dividend yield 0.00%  
Expected option life [3] 10 years  
Employee Stock Option Granted [Member]    
Weighted-average fair value per option   $ 1.42
Risk -free interest rate [1]   2.58%
Expected volatility of stock [2]   48.67%
Dividend yield   0.00%
Expected option life [3]   5 years
[1] The risk-free interest rate is based on the U.S. Treasury yield in effect at the grant date over the expected term of the option.
[2] The expected volatility is based on historical volatility from our traded Common Stock over the expected term of the option.
[3] The expected option life is based on historical exercises and post-vesting data.