Loans Allowance for Loan Losses (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Rollfoward of the Allowance for Loan Losses [Roll Forward]
Allowance for Credit Losses, Beginning Balance	$ 15,298	$ 15,003	$ 14,689
Charge-offs	(1,411)	(782)	(774)
Recoveries	347	232	243
Provision	200	845	845
Allowance for Credit Losses, Ending Balance	14,434	15,298	15,003
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Allowance for Loan Losses - Loans Individually Evaluated for Impairment	0	853
Allowance for Loan Losses - Loans Collectively Evaluated for Impairment	14,434	14,445
Ending Loan Balance - Individually Evaluated for Impairment	4,488	5,253
Ending Loan Balance - Collectively Evaluated for Impairment	1,261,984	1,167,088
Commercial [Member]
Rollfoward of the Allowance for Loan Losses [Roll Forward]
Allowance for Credit Losses, Beginning Balance	2,344	1,927	2,037
Charge-offs	(926)	(90)	(105)
Recoveries	88	23	17
Provision	380	484	(22)
Allowance for Credit Losses, Ending Balance	1,886	2,344	1,927
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Allowance for Loan Losses - Loans Individually Evaluated for Impairment	0	853
Allowance for Loan Losses - Loans Collectively Evaluated for Impairment	1,886	1,491
Ending Loan Balance - Individually Evaluated for Impairment	221	1,432
Ending Loan Balance - Collectively Evaluated for Impairment	87,672	104,104
Commercial Construction [Member]
Rollfoward of the Allowance for Loan Losses [Roll Forward]
Allowance for Credit Losses, Beginning Balance	601	602	135
Charge-offs	0	0	0
Recoveries	0	0	0
Provision	(184)	(1)	467
Allowance for Credit Losses, Ending Balance	417	601	602
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Allowance for Loan Losses - Loans Individually Evaluated for Impairment	0	0
Allowance for Loan Losses - Loans Collectively Evaluated for Impairment	417	601
Ending Loan Balance - Individually Evaluated for Impairment	0	0
Ending Loan Balance - Collectively Evaluated for Impairment	27,815	29,149
Commercial Real Estate [Member]
Rollfoward of the Allowance for Loan Losses [Roll Forward]
Allowance for Credit Losses, Beginning Balance	3,050	3,136	2,993
Charge-offs	(11)	(206)	0
Recoveries	0	0	0
Provision	506	120	143
Allowance for Credit Losses, Ending Balance	3,545	3,050	3,136
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Allowance for Loan Losses - Loans Individually Evaluated for Impairment	0	0
Allowance for Loan Losses - Loans Collectively Evaluated for Impairment	3,545	3,050
Ending Loan Balance - Individually Evaluated for Impairment	1,785	2,528
Ending Loan Balance - Collectively Evaluated for Impairment	286,334	242,649
Other Consumer [Member]
Rollfoward of the Allowance for Loan Losses [Roll Forward]
Allowance for Credit Losses, Beginning Balance	304	350	328
Charge-offs	(28)	(52)	(42)
Recoveries	3	9	28
Provision	(7)	(3)	36
Allowance for Credit Losses, Ending Balance	272	304	350
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Allowance for Loan Losses - Loans Individually Evaluated for Impairment	0	0
Allowance for Loan Losses - Loans Collectively Evaluated for Impairment	272	304
Ending Loan Balance - Individually Evaluated for Impairment	0	0
Ending Loan Balance - Collectively Evaluated for Impairment	7,649	6,684
Automobile [Member]
Rollfoward of the Allowance for Loan Losses [Roll Forward]
Allowance for Credit Losses, Beginning Balance	4,536	4,496	4,760
Charge-offs	(431)	(401)	(480)
Recoveries	256	200	198
Provision	(155)	241	18
Allowance for Credit Losses, Ending Balance	4,206	4,536	4,496
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Allowance for Loan Losses - Loans Individually Evaluated for Impairment	0	0
Allowance for Loan Losses - Loans Collectively Evaluated for Impairment	4,206	4,536
Ending Loan Balance - Individually Evaluated for Impairment	173	203
Ending Loan Balance - Collectively Evaluated for Impairment	394,031	348,897
Residential [Member]
Rollfoward of the Allowance for Loan Losses [Roll Forward]
Allowance for Credit Losses, Beginning Balance	3,405	3,414	3,163
Charge-offs	(15)	(33)	(147)
Recoveries	0	0	0
Provision	(364)	24	398
Allowance for Credit Losses, Ending Balance	3,026	3,405	3,414
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Allowance for Loan Losses - Loans Individually Evaluated for Impairment	0	0
Allowance for Loan Losses - Loans Collectively Evaluated for Impairment	3,026	3,405
Ending Loan Balance - Individually Evaluated for Impairment	2,309	1,090
Ending Loan Balance - Collectively Evaluated for Impairment	458,483	435,605
Unallocated [Member]
Rollfoward of the Allowance for Loan Losses [Roll Forward]
Allowance for Credit Losses, Beginning Balance	1,058	1,078	1,273
Charge-offs	0	0	0
Recoveries	0	0	0
Provision	24	(20)	(195)
Allowance for Credit Losses, Ending Balance	1,082	1,058	1,078
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Allowance for Loan Losses - Loans Individually Evaluated for Impairment	0	0
Allowance for Loan Losses - Loans Collectively Evaluated for Impairment	1,082	1,058
Ending Loan Balance - Individually Evaluated for Impairment	0	0
Ending Loan Balance - Collectively Evaluated for Impairment	$ 0	$ 0