Accumulated Other Comprehensive Income (Loss) (Schedule Of Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024	Mar. 31, 2024	Dec. 31, 2023
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total shareholders' equity	$ 151,391	$ 144,716	$ 134,237	$ 132,136
Accumulated Other Comprehensive (Loss) Income, Debt Securities [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Accumulated other comprehensive loss, Before tax	(38,526)	(43,149)
Accumulated other comprehensive loss, Tax effect	8,090	9,061
Total shareholders' equity	(30,436)	(34,088)
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Accumulated other comprehensive loss, Before tax	(1,797)	(1,797)
Accumulated other comprehensive loss, Tax effect	377	377
Total shareholders' equity	(1,420)	(1,420)
Accumulated Other Comprehensive Income (Loss) [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total shareholders' equity	$ (31,856)	$ (35,508)	$ (41,234)	$ (40,940)