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Federal Income Taxes (Schedule Of Components Of Income Tax Expense (Benefit)) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Federal Income Taxes [Abstract]    
Current tax expense (benefit) $ 2,210 $ 996
Tax benefit NOL carryback (1,113)  
Deferred tax expense (benefit) (839) 1,884
Income tax provision $ 258 $ 2,880