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Stock Options Outstanding Table (Details) - $ / shares
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Beginning outstanding, shares 103,641 351,561 395,353 540,441
Weighted Average Exercise Price $ 97.01 $ 96.97 $ 96.37 $ 96.35
Exercise price $95.69        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Beginning outstanding, shares 54,282      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term 1 year 3 months 18 days      
Weighted Average Exercise Price $ 95.69      
Number Exercisable 54,282      
Exercisable, Weighted Average Exercise Price $ 95.69      
Exercise Price $98.46        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Beginning outstanding, shares 49,359      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term 1 year 1 month 6 days      
Weighted Average Exercise Price $ 98.46      
Number Exercisable 49,359      
Exercisable, Weighted Average Exercise Price $ 98.46