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Loans And Leases (Narrative) (Details)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2016
USD ($)
loan
Sep. 30, 2015
USD ($)
loan
Sep. 30, 2016
USD ($)
loan
Sep. 30, 2015
USD ($)
loan
Dec. 31, 2015
USD ($)
Accounts Notes And Loans Receivable [Line Items]          
Loans $ 329,376   $ 329,376   $ 297,064
Cash payments of interest 60 $ 83 174 $ 251  
Loans 90 days or more past due and still accruing interest    
Number of days of default payment     90 days    
Total TDR's 3,648   $ 3,648   5,276
Allocated specific reserves to modified TDRs 25   25   20
Commitment to lend additional amounts 0   $ 0   0
Number of loans modified as a TDR | loan   0      
Number of TDRs in payment default | loan     1 0  
Recorded investment of loans undergoing modifications, not TDRs 18,255 $ 6,915 $ 18,255 $ 6,915  
Accruing TDR's 3,330   $ 3,330   $ 4,920
Period of timely payments before reversion to accruing status     6 months    
Northpointe [Member] | Mortgage Purchase Program Member [Member]          
Accounts Notes And Loans Receivable [Line Items]          
Percent of loans risk rated for capital adequacy     100.00%    
Percent of participation agreement interest         95.00%
Ownership interest in each loan it participates     5.00%    
Home Equity Lines of Credit [Member]          
Accounts Notes And Loans Receivable [Line Items]          
Total TDR's   9   $ 9  
Number of loans modified as a TDR | loan       1  
Single-Family Residential [Member]          
Accounts Notes And Loans Receivable [Line Items]          
Total TDR's   $ 9   $ 9  
Number of loans modified as a TDR | loan       1  
Single-Family Residential [Member] | Northpointe [Member] | Mortgage Purchase Program Member [Member]          
Accounts Notes And Loans Receivable [Line Items]          
Loans 43,056   $ 43,056   $ 43,517
Commercial [Member]          
Accounts Notes And Loans Receivable [Line Items]          
Total TDR's $ 339   $ 339    
Number of loans modified as a TDR | loan 1   1