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Shareholders' Equity (Changes in Shares of Common Stock) (Details) - shares
 3 Months Ended 6 Months Ended
Jun. 30, 2023
Mar. 31, 2023
Jun. 30, 2022
Mar. 31, 2022
Jun. 30, 2023
Shareholders Equity [Line Items]          
Treasury stock, beginning balance   759,555     759,555
Shares issued, beginning balance 16,099,556 16,099,556 16,099,556 16,099,556 16,099,556
Treasury stock purchases         766,447
Treasury stock, ending balance 697,756       697,756
Shares issued, ending balance 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 15,375,479 15,340,001 15,299,077 15,745,453 15,340,001
Restricted stock awards issued 20,185   11,300    
Stock awards 5,945   3,848    
Restricted stock units released 296 58,188 31,141 23,271  
Treasury stock purchases (105) (22,710) (11,275) (469,647)  
Shares outstanding, ending balance 15,401,800 15,375,479 15,334,091 15,299,077 15,401,800
Treasury Stock [Member]          
Shareholders Equity [Line Items]          
Treasury stock, beginning balance 724,077 759,555 800,479 354,103 759,555
Restricted stock awards issued (20,185)   (11,300)    
Stock awards (5,945)   (3,848)    
Restricted stock units released (296) (58,188) (31,141) (23,271)  
Treasury stock purchases 105 22,710 11,275 469,647  
Treasury stock, ending balance 697,756 724,077 765,465 800,479 697,756