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Allowance for Loan Losses (Rollforward of the Allowance for Loan Losses by Portfolio Segment) (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Balance at beginning of period $ 10,109 $ 10,960 $ 10,104 $ 12,571
Charge-offs (52) (59) (269) (1,606)
Recoveries 93 94 315 280
Provision (credit) for loan losses    150    (100)
Balance at end of period 10,150 11,145 10,150 11,145
Commercial [Member]
        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Balance at beginning of period 3,065 2,667 2,844 2,596
Charge-offs       (72)   
Recoveries 55 20 105 31
Provision (credit) for loan losses 134 93 377 153
Balance at end of period 3,254 2,780 3,254 2,780
Commercial loans secured by real estate [Member]
        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Balance at beginning of period 4,662 5,989 4,885 7,796
Charge-offs       (66) (1,480)
Recoveries 19 34 172 142
Provision (credit) for loan losses (206) (40) (516) (475)
Balance at end of period 4,475 5,983 4,475 5,983
Real estate-mortgage [Member]
        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Balance at beginning of period 1,273 1,267 1,260 1,269
Charge-offs (30) (18) (73) (47)
Recoveries 11 12 25 67
Provision (credit) for loan losses 47 18 89 (10)
Balance at end of period 1,301 1,279 1,301 1,279
Consumer [Member]
        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Balance at beginning of period 139 147 136 150
Charge-offs (22) (41) (58) (79)
Recoveries 8 28 13 40
Provision (credit) for loan losses 20 12 54 35
Balance at end of period 145 146 145 146
Allocation for general risk [Member]
        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Balance at beginning of period 970 890 979 760
Charge-offs            
Recoveries            
Provision (credit) for loan losses 5 67 (4) 197
Balance at end of period $ 975 $ 957 $ 975 $ 957