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Income Taxes (Narrative) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Operating Loss Carryforwards [Line Items]    
Unrecognized tax benefits at end of year $ 0 $ 27
Unrecognized tax benefits, additions for tax positions of prior years 0  
Unrecognized tax benefits, reductions for tax positions of prior years 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 10,700 12,900
Operating loss carryforwards, valuation allowance   $ (68)
Other tax carryforward, valuation allowance $ 0