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Pension (Schedule Of Net Periodic Pension Costs) (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Pension [Abstract]
Service cost	$ 80	$ 90
Interest cost	158	138
Expected return on plan assets	(270)	(279)
Recognized net actuarial loss	152	176
Net period cost	$ 120	$ 125	$ 500

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Amount of expected return (loss) recognized in net periodic benefit (cost) credit, calculated based on expected long-term rate of return and market-related value of plan assets of defined benefit plan.

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