Quarterly report pursuant to Section 13 or 15(d)

Stock Plans - Option activity (Details)

v3.20.2
Stock Plans - Option activity (Details) - USD ($)
$ / shares in Units, $ in Thousands
6 Months Ended 12 Months Ended
Jun. 30, 2020
Dec. 31, 2019
Stock Plans    
Number of options outstanding at Beginning of year 1,192,000  
Shares, Granted 50,000  
Shares, Forfeited or expired (324,000)  
Number of Options and Awards outstanding at end of year 918,000 1,192,000
Shares, Exercisable at end of year 824,000  
Weighted Average Exercise Price, Outstanding at Beginning of year $ 6.23  
Weighted Average Exercise Price, Granted 0.28  
Weighted Average Exercise Price,Forfeited or expired 1.88  
Weighted Average Exercise Price, Outstanding at End of year 7.44 $ 6.23
Weighted Average Exercise Price, Exercisable at end of year $ 8.19  
Weighted Average Remaining Contractual Term, Outstanding (Years) 7 years 7 years 10 months 24 days
Weighted Average Remaining Contractual Term, Exercisable at end of year 6 years 9 months 18 days  
Aggregate Intrinsic Value, Outstanding at End of year $ 1