XML 57 R43.htm IDEA: XBRL DOCUMENT v3.20.4
STOCK-BASED COMPENSATION PLANS - Summary of stock option activity (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Summary of stock option activity under the option Plan    
Outstanding and Exercisable at ending balance 1,006  
Number of Shares, Exercisable 575  
Weighted Average Remaining Contractual Life, Exercisable (Years) 5 years 4 months 6 days  
Employee Stock Option [Member]    
Summary of stock option activity under the option Plan    
Outstanding at beginning balance 1,855 1,885
Number of Shares, Granted 14 653
Number of Warrants, Exercised (622) (503)
Number of Shares, Expired   (6)
Number of Shares, Forfeited (241) (174)
Outstanding and Exercisable at ending balance 1,006 1,855
Number of Shares, Exercisable 575  
Weighted Average Exercise Price, Outstanding at beginning balance $ 2.48 $ 0.80
Weighted Average Exercise Price, Granted 10.15 5.81
Weighted Average Exercise Price, Exercised 0.90 0.44
Weighted Average Exercise Price, Expired   1.00
Weighted Average Exercise Price, Forfeited 4.68 2.64
Weighted Average Exercise Price, Outstanding at ending balance 3.04 2.48
Weighted Average Exercise Price, Exercisable at ending balance $ 1.62 $ 2.48
Weighted Average Remaining Contractual Life, Outstanding 6 years 5 months 19 days  
Weighted Average Remaining Contractual Life, Exercisable (Years) 5 years 4 months 6 days 6 years 5 months 1 day
Aggregate Intrinsic Value, Outstanding $ 10,483 $ 10,032
Aggregate Intrinsic Value, Exercisable $ 6,807