Annual report pursuant to Section 13 and 15(d)

Stock Based Compensation - Stock Options With Company's Market-based Option Activity (Details)

v3.20.4
Stock Based Compensation - Stock Options With Company's Market-based Option Activity (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Aggregate intrinsic value    
Aggregate intrinsic value $ 0  
Aggregate intrinsic value of options exercisable $ 65  
Market Based Options    
Number of shares    
Balance, beginning of period (in shares) 300,000  
Granted (in shares) 1,000,000  
Forfeited (in shares) (300,000)  
Balance, end of period (in shares) 1,000,000 300,000
Exercisable (in shares) 500,000  
Weighted average exercise price per share    
Balance, beginning of period (in dollars per share) $ 4.98  
Granted (in dollars per share) 3.29  
Forfeited (in dollars per share) 4.98  
Balance, end of period (in dollars per share) 3.29 $ 4.98
Exercisable (in dollars per share) $ 2.51  
Weighted average remaining contractual term (in years)    
Weighted average remaining contractual term 9 years 6 months 9 years 4 months 24 days
Exercisable 9 years 6 months