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Long-Term Debt And Lease Liabilities (Supplemental Cash Flow Information Related To Leases) (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2019
Long-Term Debt And Lease Liabilities [Abstract]    
Operating cash flows from operating leases $ 15 $ 45
Operating cash flows from finance leases 1 4
Finance cash flows from finance leases $ 9 40
Right of use assets obtained in exchange for lease obligations, Operating leases   $ 98