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Stock-Based and Other Long-Term Incentive Compensation (Stock Option Activity) (Details) - USD ($)
$ / shares in Units, $ in Thousands
9 Months Ended 12 Months Ended
Sep. 30, 2020
Dec. 31, 2019
Number ofStock Options    
Outstanding, beginning of period (in shares) 208,334  
Granted (in shares) 5,000  
Canceled/Forfeited (in shares) (7,000)  
Expired (in shares) (40,000)  
Outstanding, end of period (in shares) 166,334 208,334
Number of stock options, exercisable (in shares) 161,334  
Weighted AverageExercise Price    
Outstanding, beginning of period (in USD per share) $ 23.67  
Granted (in USD per share) 4.91  
Canceled/Forfeited (in USD per share) 31.12  
Expired (in USD per share) 19.11  
Outstanding, end of period (in USD per share) 23.89 $ 23.67
Weighted average exercise price, exercisable (in USD per share) $ 24.48  
WeightedAverageRemainingContractual Life (years)    
Outstanding 3 years 10 months 28 days 3 years 7 months 28 days
Granted 9 years 6 months 21 days  
Exercisable 3 years 8 months 26 days  
Aggregate Intrinsic Value    
Outstanding, beginning of period $ 0  
Granted 18  
Exercised 0  
Outstanding, end of period 18 $ 0
Exercisable $ 0