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Income Taxes (Schedule Of Effective Income Tax Rate Reconciliation) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Income Taxes [Abstract]    
Computed "Expected" Federal Tax Expense (Benefit From) $ (4) $ 156
State Income Taxes, net of Federal Benefit 1 3
Credits (41) (46)
Domestic Production Activities Deduction 0 (19)
Permanent Differences 7 4
Effect of U.S. Tax Law Changes (35% to 21%) 0 49
Other 29 16
Total Federal and State Income Taxes (8) 163
Accrued interest or penalties related to uncertain tax positions $ 0 $ 0