Long-Term Debt (Supplemental Balance Sheet Information Related To Leases) (Details) $ in Thousands	Dec. 31, 2019 USD ($)
Long-Term Debt [Abstract]
Right of use asset - operating leases	$ 41
Lease liabilities - current	41
Total operating lease liabilities	41
Other property and equipment, gross	295
Accumulated depreciation	(146)
Other property and equipment, net	149
Lease liabilities - current	61
Lease liabilities - noncurrent	41
Total finance lease liabilities	$ 102