Properties And Equipments (Schedule Of The Gross And Carrying Amounts Of The Properties Leased Of Held-For-Leasing) (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Properties And Equipments [Abstract]
Gross balance	$ 67,887	$ 71,749
Accumulated depreciation	17,709	17,585
Net Book Value	$ 50,178	$ 54,164