Stock Options And Restricted Stock Awards (Summary of Stock Option Activity) (Details) - Employee Stock Option - $ / shares	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options, Outstanding, beginning of period shares	468,000	493,000
Options, Granted shares	0
Options, Exercised shares	(13,000)
Options, Outstanding, end of period shares	455,000	468,000
Options, Exercisable, end of period shares	415,000
Weighted Average Exercise Price, Outstanding, beginning of period	$ 45.72
Weighted Average Exercise Price, Exercised	24.38
Weighted Average Exercise Price, Outstanding, end of period	46.33	$ 45.72
Weighted Average Exercise Price, Exercisable, end of period	$ 42.21
Weighted Average Remaining Contractual Term, Outstanding	4 years 3 months 18 days	5 years 2 months 12 days
Weighted Average Remaining Contractual Term, Exercisable	4 years