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Loans and the Allowance for Loan Losses, Activity In Period (Details) (USD $)
In Thousands, unless otherwise specified
9 Months Ended 12 Months Ended
Sep. 30, 2013
Dec. 31, 2012
Allowance for loan losses by segment [Roll Forward]    
Beginning Balance $ 7,324 $ 8,498
Charges-offs (1,462) (3,969)
Recoveries 318 395
Provision for loan losses 800 2,400
Ending balance 6,980 7,324
Ending balances individually evaluated for impairment 1,920 444
Ending balances collectively evaluated for impairment 5,060 6,880
Ending balance 6,980 7,324
Loan Balances [Abstract]    
Ending balance individually evaluated for impairment 18,011 17,568
Ending balance collectively evaluated for impairment 462,156 453,565
Ending balance 480,167 471,133
Calculated provision based on prior methodology 856  
Changes for allowance for loan losses (56)  
Commercial [Member]
   
Allowance for loan losses by segment [Roll Forward]    
Beginning Balance 677 1,011
Charges-offs (120) (138)
Recoveries 67 67
Provision for loan losses (368) (263)
Ending balance 256 677
Ending balances individually evaluated for impairment 0 33
Ending balances collectively evaluated for impairment 256 644
Ending balance 256 677
Loan Balances [Abstract]    
Ending balance individually evaluated for impairment 0 97
Ending balance collectively evaluated for impairment 29,880 25,244
Ending balance 29,880 25,341
Calculated provision based on prior methodology (346)  
Changes for allowance for loan losses (22)  
Real Estate - Construction [Member]
   
Allowance for loan losses by segment [Roll Forward]    
Beginning Balance 187 323
Charges-offs (99) (831)
Recoveries 4 30
Provision for loan losses 516 665
Ending balance 608 187
Ending balances individually evaluated for impairment 149 0
Ending balances collectively evaluated for impairment 459 187
Ending balance 608 187
Loan Balances [Abstract]    
Ending balance individually evaluated for impairment 2,546 3,064
Ending balance collectively evaluated for impairment 10,078 8,941
Ending balance 12,624 12,005
Calculated provision based on prior methodology 371  
Changes for allowance for loan losses 145  
Real Estate - Mortgage [Member]
   
Allowance for loan losses by segment [Roll Forward]    
Beginning Balance 6,179 6,735
Charges-offs (1,037) (2,554)
Recoveries 137 162
Provision for loan losses 504 1,836
Ending balance 5,783 6,179
Ending balances individually evaluated for impairment 1,771 411
Ending balances collectively evaluated for impairment 4,012 5,768
Ending balance 5,783 6,179
Loan Balances [Abstract]    
Ending balance individually evaluated for impairment 15,449 14,390
Ending balance collectively evaluated for impairment 396,475 384,132
Ending balance 411,924 398,522
Calculated provision based on prior methodology 859  
Changes for allowance for loan losses (355)  
Consumer [Member]
   
Allowance for loan losses by segment [Roll Forward]    
Beginning Balance 204 300
Charges-offs (83) (259)
Recoveries 60 70
Provision for loan losses (13) 93
Ending balance 168 204
Ending balances individually evaluated for impairment 0 0
Ending balances collectively evaluated for impairment 168 204
Ending balance 168 204
Loan Balances [Abstract]    
Ending balance individually evaluated for impairment 16 17
Ending balance collectively evaluated for impairment 10,244 13,129
Ending balance 10,260 13,146
Calculated provision based on prior methodology (64)  
Changes for allowance for loan losses 51  
Other [Member]
   
Allowance for loan losses by segment [Roll Forward]    
Beginning Balance 77 129
Charges-offs (123) (187)
Recoveries 50 66
Provision for loan losses 161 69
Ending balance 165 77
Ending balances individually evaluated for impairment 0 0
Ending balances collectively evaluated for impairment 165 77
Ending balance 165 77
Loan Balances [Abstract]    
Ending balance individually evaluated for impairment 0 0
Ending balance collectively evaluated for impairment 15,479 22,119
Ending balance 15,479 22,119
Calculated provision based on prior methodology 36  
Changes for allowance for loan losses $ 125