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Earnings Per Common Share (Weighted Average Number Of Shares Used In Computing Earnings Per Share) (Details) - shares
3 Months Ended 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Earnings Per Share [Abstract]        
Potentially dilutive securities outstanding     0 0
Average number of common shares outstanding used to calculate basic earnings per share 3,556,935 3,526,934 3,557,069 3,524,695
Average number of common shares outstanding used to calculate diluted earnings per share 3,556,935 3,526,934 3,557,069 3,524,695