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Long-Term Debt And Lease Liabilities (Maturity Analysis For Operating and Finance Lease Liabilities) (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Long-Term Debt And Lease Liabilities [Abstract]
2020	$ 16
2021	43
Total lease payments	59
Less imputed interest	(1)
Total operating lease liabilities	58	$ 41
2020	21
2021	67
2022	15
Total lease payments	103
Less imputed interest	(3)
Total finance lease liabilities	$ 100	$ 102

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Long-Term Debt and Lease Liabilities [Abstract]

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Present value of lessee's discounted obligation for lease payments from finance lease.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
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-URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918701-209980

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Amount of lessee's undiscounted obligation for lease payments for finance lease.

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Amount of lessee's undiscounted obligation for lease payment for finance lease to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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