Accumulated Other Comprehensive Loss (Schedule Of Changes In Accumulated Other Comprehensive Loss) (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Accumulated Other Comprehensive Loss [Line Items]
Accumulated other comprehensive loss, beginning of period			$ (2,290,000)
Net current-period other comprehensive gain (loss)	$ 277,000	$ 17,000	330,000	$ (347,000)
Accumulated other comprehensive loss, end of period	(1,960,000)		(1,960,000)
Unrealized Gains and (Losses) on Available-for-Sale Securities [Member]
Accumulated Other Comprehensive Loss [Line Items]
Accumulated other comprehensive loss, beginning of period	(2,237,000)	(2,401,000)	(2,290,000)	(2,037,000)
Other comprehensive gain (loss) before reclassifications	277,000	17,000	330,000	(347,000)
Net current-period other comprehensive gain (loss)	277,000	17,000	330,000	(347,000)
Accumulated other comprehensive loss, end of period	(1,960,000)	(2,384,000)	(1,960,000)	(2,384,000)
Accumulated other comprehensive loss, end of period	$ 0	$ 0	$ 0	$ 0