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Summary Of Significant Accounting Policies (Narrative) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Summary Of Significant Accounting Policies [Line Items]    
Maximum maturing period for cash and cash equivalents 90 days  
Duration of loans interest stops accruing 90 days  
Duration of consecutive payments before future payments assured 6 months  
Duration of consumer term loans charged-off 120 days  
Duration of consumer revolving credit loans charged-off 180 days  
Impaired loans TDR $ 455 $ 646
Minimum principal loan balance for individual impairment test 100,000  
Unrecognized tax liabilities 0 0
Advertising expense $ 686 $ 466
Equipment [Member] | Maximum [Member]    
Summary Of Significant Accounting Policies [Line Items]    
Estimated useful life 7 years  
Equipment [Member] | Minimum [Member]    
Summary Of Significant Accounting Policies [Line Items]    
Estimated useful life 3 years  
Building and Building Improvements [Member] | Maximum [Member]    
Summary Of Significant Accounting Policies [Line Items]    
Estimated useful life 39 years 6 months  
Building and Building Improvements [Member] | Minimum [Member]    
Summary Of Significant Accounting Policies [Line Items]    
Estimated useful life 10 years