Annual report pursuant to Section 13 and 15(d)

Stock Plans - stock option activity (Details)

v3.21.1
Stock Plans - stock option activity (Details) - $ / shares
shares in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Stock Plans    
Number of options outstanding at Beginning of year 40  
Shares, Granted 2  
Shares, Cancelled (14)  
Number of Options and Awards outstanding at end of year 28 40
Shares, Exercisable at end of year 27  
Weighted Average Exercise Price, Outstanding at Beginning of year $ 187.09  
Weighted Average Exercise Price, Granted 7.95  
Weighted Average Exercise Price, Cancelled 49.76  
Weighted Average Exercise Price, Outstanding at End of year 242.70 $ 187.09
Weighted Average Exercise Price, Exercisable at end of year $ 247.27  
Weighted Average Remaining Contractual Term, Outstanding (Years) 6 years 4 months 6 days 0 years
Weighted Average Remaining Contractual Term, Exercisable at end of year 6 years 3 months 15 days