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Shareholders' Equity (Changes in Shares of Common Stock) (Details) - shares
 3 Months Ended 9 Months Ended
Sep. 30, 2024
Jun. 30, 2024
Mar. 31, 2024
Sep. 30, 2023
Jun. 30, 2023
Mar. 31, 2023
Sep. 30, 2024
Shareholders Equity [Line Items]              
Treasury stock, beginning balance     692,150       692,150
Shares issued, beginning balance 16,099,556 16,099,556 16,099,556 16,099,556 16,099,556 16,099,556 16,099,556
Treasury stock purchases             0
Treasury stock, ending balance 625,242           625,242
Shares issued, ending balance 16,099,556 16,099,556 16,099,556 16,099,556 16,099,556 16,099,556 16,099,556
Common Stock [Member]              
Shareholders Equity [Line Items]              
Shares outstanding, beginning balance 15,472,395 15,446,949 15,407,406 15,401,800 15,375,479 15,340,001 15,407,406
Restricted stock awards issued   22,011     20,185    
Restricted stock awards forfeited   (1,000)          
Stock awards   4,141     5,945    
Restricted stock units released 3,000 500 60,989   296 58,188  
Treasury stock purchases (1,081) (206) (21,446) 0 (105) (22,710)  
Shares outstanding, ending balance 15,474,314 15,472,395 15,446,949 15,401,800 15,401,800 15,375,479 15,474,314
Treasury Stock [Member]              
Shareholders Equity [Line Items]              
Treasury stock, beginning balance 627,161 652,607 692,150 697,756 724,077 759,555 692,150
Restricted stock awards issued   (22,011)     (20,185)    
Restricted stock awards forfeited   1,000          
Stock awards   (4,141)     (5,945)    
Restricted stock units released (3,000) (500) (60,989)   (296) (58,188)  
Treasury stock purchases 1,081 206 21,446 0 105 22,710  
Treasury stock, ending balance 625,242 627,161 652,607 697,756 697,756 724,077 625,242