Stock Based Compensation (Summary Of Options Outstanding) (Details)	12 Months Ended
	Dec. 31, 2025 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options Outstanding and Exercisable | shares	30,600
Weighted Average Exercise Price | $ / shares	$ 31.90
Weighted Average Remaining Life (years)	1 year 8 months 12 days
Incentive Stock Options One [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options Outstanding and Exercisable | shares	1,500
Weighted Average Exercise Price | $ / shares	$ 21.27
Weighted Average Remaining Life (years)	2 months 12 days
Incentive Stock Options Two [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options Outstanding and Exercisable | shares	11,700
Weighted Average Exercise Price | $ / shares	$ 30.00
Weighted Average Remaining Life (years)	1 year 2 months 12 days
Incentive Stock Options Three [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options Outstanding and Exercisable | shares	17,400
Weighted Average Exercise Price | $ / shares	$ 34.10
Weighted Average Remaining Life (years)	2 years 2 months 12 days