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Share-Based Payment Arrangements Stock Option Activity (Details) - USD ($)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]    
Number of Options Outstanding, Beginning 9,780  
Number of Options, Granted 0  
Number of Options, Exercised 0  
Number of Options, Forfeited (3,950)  
Number of Options, Expired (140)  
Number of Options Outstanding, Ending 5,690 9,780
Number of Options, Exercisable 5,690  
Number of Options, Expected to Vest after end of period 0  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]    
Weighted Average Exercise Price, Outstanding, Beginning (in dollars per share) $ 113.66  
Weighted Average Exercise Price, Granted (in dollars per share) 0  
Weighted Average Exercise Price, Exercised (in dollars per share) 0  
Weighted Average Exercise Price, Forfeited (in dollars per share) 108.28  
Weighted Average Exercise Price, Expired (in dollars per share) 409.79  
Weighted Average Exercise Price, Outstanding, Ending (in dollars per share) 110.10 $ 113.66
Weighted Average Exercise Price, Exercisable (in dollars per share) 110.10  
Weighted Average Exercise Price, Expected to Vest After End of Period (in dollars per share) $ 0  
Weighted Average Remaining Contractual Life (in years), Outstanding 3 years 3 months 10 days 4 years 3 months
Weighted Average Remaining Contractual Life (in years), Exercisable 3 years 3 months 10 days  
Weighted Average Remaining Contractual Life (in years), Expected to Vest after end of period 0 years  
Aggregate Intrinsic Value, Outstanding $ 0 $ 0
Aggregate Intrinsic Value, Exercisable 0  
Aggregate Intrinsic Value, Expected to Vest $ 0