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Stock-Based Compensation (Summary of Stock Option Activity) (Details)
$ / shares in Units, $ in Thousands
 9 Months Ended 12 Months Ended
Sep. 30, 2023
USD ($)
$ / shares
shares
Dec. 31, 2022
USD ($)
$ / shares
shares
Stock-Based Compensation [Abstract]    
Options, beginning of year | shares 218,975  
Options, Granted | shares 2,500  
Options, Exercised | shares (16,125)  
Options, Forfeited | shares (4,500)  
Options, end of year | shares 200,850 218,975
Options, Exercisable, end of period | shares 164,850  
Weighted Average Exercise Price Per Share, Outstanding, beginning of period | $ / shares $ 28.70  
Weighted Average Exercise Price Per Share, Granted | $ / shares 29.60  
Weighted Average Exercise Price Per Share, Exercised | $ / shares 22.76  
Weighted Average Exercise Price Per Share, Forfeited | $ / shares 33.53  
Weighted Average Exercise Price Per Share, Outstanding, end of period | $ / shares 29.07 $ 28.70
Weighted Average Exercise Price Per Share, Exercisable, end of period | $ / shares $ 28.16  
Weighted Average Remaining Contractual Term, Outstanding 6 years 1 month 6 days 6 years 9 months 18 days
Weighted Average Remaining Contractual Term, Granted in Period 9 years 6 months  
Weighted Average Remaining Contractual Term, Exercised During Period 5 years 1 month 6 days  
Weighted Average Remaining Contractual Term, Forfeited During Period 9 years 2 months 12 days  
Weighted Average Remaining Contractual Term, Exercisable at End of Period 5 years 6 months  
Aggregate Intrinsic Value, Outstanding, beginning of period | $ $ 1,100  
Aggregate Intrinsic Value, Outstanding, end of period | $ 193 $ 1,100
Aggregate Intrinsic Value, Exercisable at end of period | $ $ 193