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Earnings Per Common Share (Narrative) (Details) - $ / shares
3 Months Ended 12 Months Ended
Dec. 31, 2021
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Earnings Per Share [Abstract]        
Weighted average stock options with an anti dilutive effect excluded from calculation of earnings per share (in shares)   3,175 7,481 2,575
Quarterly common stock cash dividend (in dollars per share) $ 0.12 $ 0.40 $ 0.28 $ 0.28