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Income Taxes (Narrative) (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Operating Loss Carryforwards [Line Items]    
Unrecognized tax benefits at end of year $ 0 $ 0
Unrecognized tax benefits that are expected to significantly increase or decrease within the next twelve months 0  
State and local jurisdiction    
Operating Loss Carryforwards [Line Items]    
State net operating loss carryforwards 7,700 $ 8,400
Other tax carryforward, valuation allowance $ 0