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Income Taxes (Narrative) (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2018
USD ($)
Operating Loss Carryforwards [Line Items]  
Net operating loss carryforward $ 4,970
Net operating loss carryforward, expiration date Dec. 31, 2035
Earliest Tax Year [Member]  
Operating Loss Carryforwards [Line Items]  
Open Tax Year 2015