Accumulated Other Comprehensive Loss (Schedule Of Changes In Accumulated Other Comprehensive Loss) (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Accumulated Other Comprehensive Loss [Line Items]
Accumulated other comprehensive loss, beginning of period			$ (2,037,000)
Other comprehensive income (loss), net of tax	$ 17,000	$ (217,000)	(347,000)	$ (1,484,000)
Accumulated other comprehensive income (loss), end of period	(2,384,000)		(2,384,000)
Unrealized Gains and Losses on Available-for-Sale Securities [Member]
Accumulated Other Comprehensive Loss [Line Items]
Accumulated other comprehensive loss, beginning of period	(2,401,000)	(1,437,000)	(2,037,000)	(170,000)
Other comprehensive gain (loss) before reclassifications	17,000	(217,000)	(347,000)	(1,484,000)
Other comprehensive income (loss), net of tax	17,000	(217,000)	(347,000)	(1,484,000)
Accumulated other comprehensive income (loss), end of period	(2,384,000)	(1,654,000)	(2,384,000)	(1,654,000)
Accumulated other comprehensive loss, end of period	$ 0	$ 0	$ 0	$ 0