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Summary Of Significant Accounting Policies (Narrative) (Details) (USD $)
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Significant Accounting Policies [Line Items]    
Days past due when loans are generally placed on nonaccrual status, in days 90 days  
Days past due when loans are generally charged-off in full, in days 120 days  
General period after loans become current, accrual status returned, in months 6 months  
Other real estate owned $ 194,000us-gaap_OtherRealEstate $ 333,000us-gaap_OtherRealEstate
Number of consecutive years used for compensation calculation 5 years  
FHLB stock 15,100,000us-gaap_FederalHomeLoanBankStock 15,800,000us-gaap_FederalHomeLoanBankStock
FRB stock 3,900,000us-gaap_FederalReserveBankStock 3,900,000us-gaap_FederalReserveBankStock
Equity method investments, asset amount $ 4,900,000us-gaap_EquityMethodInvestmentSummarizedFinancialInformationAssets $ 4,800,000us-gaap_EquityMethodInvestmentSummarizedFinancialInformationAssets
Minimum [Member]    
Significant Accounting Policies [Line Items]    
Standby letters of credit outstanding original term, in years 1 year  
Loss rate look-back period 24 months  
Loss emergence period 12 months  
Minimum [Member] | Building And Building Improvements [Member]    
Significant Accounting Policies [Line Items]    
Premise and equipment, estimated useful lives, in years 15 years  
Minimum [Member] | Software Furniture And Equipment [Member]    
Significant Accounting Policies [Line Items]    
Premise and equipment, estimated useful lives, in years 3 years  
Maximum [Member]    
Significant Accounting Policies [Line Items]    
Standby letters of credit outstanding original term, in years 5 years  
Loss rate look-back period 48 months  
Loss emergence period 24 months  
Maximum [Member] | Building And Building Improvements [Member]    
Significant Accounting Policies [Line Items]    
Premise and equipment, estimated useful lives, in years 39 years  
Maximum [Member] | Software Furniture And Equipment [Member]    
Significant Accounting Policies [Line Items]    
Premise and equipment, estimated useful lives, in years 10 years  
Other Intangible Assets [Member]    
Significant Accounting Policies [Line Items]    
Estimated average life 20 years  
Core Deposits [Member]    
Significant Accounting Policies [Line Items]    
Estimated average life 9 years 6 months