Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Summary Of Share-Based Transactions ) (Details)

v3.20.2
Stock-Based Compensation (Summary Of Share-Based Transactions ) (Details) - Stock Option [Member] - USD ($)
6 Months Ended 12 Months Ended
Jun. 30, 2020
Dec. 31, 2019
Number of Options, Oustanding 204,574  
Number of Options, Granted  
Number of Options, Exercised  
Number of Options, Expired (2,996)  
Number of Options, Cancelled (55,354)  
Number of Options, Oustanding 146,224 204,574
Weighted Average Exercise Price, Outstanding $ 35.60  
Weighted Average Exercise Price, Granted  
Weighted Average Exercise Price, Exercised  
Weighted Average Exercise Price, Expired (156.41)  
Weighted Average Exercise Price, Cancelled 59.54  
Weighted Average Exercise Price, Outstanding $ 24.06 $ 35.60
Weighted Average Remaining Contractual Term, Outstanding 7 years 7 months 6 days 7 years 3 months 18 days
Aggregate Intrinsic Value, Outstanding
Number of Options, Exercisable 98,834  
Weighted Average Exercise Price, Exercisable $ 28.65  
Weighted Average Remaining Contractual Term, Exercisable 7 years 3 months 18 days  
Aggregate Intrinsic Value, Exercisable