Quarterly report pursuant to Section 13 or 15(d)

Stock Plans - Our option activity (Details)

v3.22.1
Stock Plans - Our option activity (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2022
Dec. 31, 2021
Stock Plans    
Number of options Outstanding at December 31, 2020 682,000  
Shares, Granted 310,000  
Shares, Forfeited or expired (2,000)  
Number of Options Outstanding at December 31, 2021 990,000 682,000
Shares, Exercisable at September 30, 2021 511,000  
Weighted Average Exercise Price, Outstanding at December 31, 2020 $ 12.53  
Weighted Average Exercise Price, Granted 1.18  
Weighted Average Exercise Price, Forfeited or expired 531.11  
Weighted Average Exercise Price, Outstanding at December 31, 2021 8.28 $ 12.53
Weighted Average Exercisable at December 31, 2021 $ 14.01  
Weighted Average Remaining Contractual Term, Outstanding (Years) 9 years 25 days 8 years 11 months 23 days
Weighted Average Remaining Contractual Term, Exercisable at end of year 8 years 8 months 15 days  
Aggregate Intrinsic Value, Outstanding at December 31, 2020 $ 0  
Aggregate Intrinsic Value, Outstanding at December 31, 2021 0 $ 0
Aggregate Intrinsic Value, Exercisable at September 30, 2021 $ 0