Loans (Troubled Debt Restructurings on Financing Receivables) (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2015
USD ($)
loan
Dec. 31, 2014
USD ($)
loan
Financing receivable post modification recorded investment | $ $ 18,568 $ 18,136
Less: TDRs included in non-accrual loans | $ (5,435) (4,887)
Accrual TDR loans | $ $ 13,133 $ 13,249
Number of TDR loans | loan 30 24
Number of non-accrual TDR loans | loan (7) (5)
Number of accrual TDR loans | loan 23 19
Commercial Equipment [Member]    
Financing receivable post modification recorded investment | $ $ 123 $ 154
Number of TDR loans | loan 2 2
Commercial Loans [Member]    
Financing receivable post modification recorded investment | $ $ 1,384 $ 2,262
Number of TDR loans | loan 7 6
Construction and Land Development [Member]    
Financing receivable post modification recorded investment | $ $ 4,283 $ 4,376
Number of TDR loans | loan 5 4
Residential First Mortgages [Member]    
Financing receivable post modification recorded investment | $ $ 881 $ 906
Number of TDR loans | loan 3 3
Commercial Real Estate [Member]    
Financing receivable post modification recorded investment | $ $ 11,897 $ 10,438
Number of TDR loans | loan 13 9