Accumulated Other Comprehensive Income (Schedule Of Accumulated Other Comprehensive Income) (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive income (loss), beginning of period			$ 96,000
Other comprehensive income (loss), net of tax	$ (17,000)	$ (26,000)	(46,000)	$ 118,000
Accumulated other comprehensive income, end of period	50,000		50,000
Unrealized Gains and Losses on Available-for-Sale Securities [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive income (loss), beginning of period	67,000	172,000	96,000	28,000
Other comprehensive income (loss) before reclassifications	(17,000)	(26,000)	(46,000)	118,000
Other comprehensive income (loss), net of tax	(17,000)	(26,000)	(46,000)	118,000
Accumulated other comprehensive income, end of period	50,000	146,000	50,000	146,000
Amount reclassified out of other comprehensive income	$ 0	$ 0	$ 0	$ 0