Investments (Schedule Of Changes In Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Investments [Abstract]
Unrealized holding gains (losses) arising during the period	$ 211	$ (284)
Less: Reclassification of gains included in net income	(1,449)	(1,163)
Net Decrease in Unrealized Gains	(1,238)	(1,447)
Increase (decrease) in deferred taxes on unrealized gains (losses) arising during the period	80	(108)
Less: Reclassification of taxes on gains included in net income	(551)	(442)
Net Decrease in Deferred Taxes	(471)	(550)
Other Comprehensive Loss	$ (767)	$ (897)