Pension (Schedule Of Net Periodic Pension Costs) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Pension [Abstract]
Service cost	$ 83	$ 92	$ 164	$ 192
Interest cost	180	172	360	350
Expected return on plan assets	(290)	(296)	(583)	(592)
Recognized net actuarial loss	120	123	231	254
Net periodic pension cost	$ 93	$ 91	$ 172	$ 204	$ 387