Loans Loan Categories and Past Due Loans(Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Past Due 30 - 59 Days	$ 3,460	$ 4,303	$ 3,075
Loans Past Due 60 - 89 Days	2,887	4,388	4,580
Loans Past Due 90 or more Days	5,647	5,422	4,754
Total Loans Past Due	11,994	14,113	12,409
Current Loans	1,369,446	1,252,359	1,230,961
Total Loans	1,381,440	1,266,472	1,243,370
Loans 90 Days or More Past Due and Still Accruing Interest	571	652	927
Nonaccrual Loans	7,048	6,479	6,171
Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Past Due 30 - 59 Days	109	304	595
Loans Past Due 60 - 89 Days	210	601	750
Loans Past Due 90 or more Days	485	177	53
Total Loans Past Due	804	1,082	1,398
Current Loans	96,042	86,811	85,719
Total Loans	96,846	87,893	87,117
Loans 90 Days or More Past Due and Still Accruing Interest	328	28	0
Nonaccrual Loans	241	352	269
Commercial Construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Past Due 30 - 59 Days	0	0	0
Loans Past Due 60 - 89 Days	0	0	0
Loans Past Due 90 or more Days	0	0	0
Total Loans Past Due	0	0	0
Current Loans	26,709	27,815	33,960
Total Loans	26,709	27,815	33,960
Loans 90 Days or More Past Due and Still Accruing Interest	0	0	0
Nonaccrual Loans	0	0	0
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Past Due 30 - 59 Days	0	200	0
Loans Past Due 60 - 89 Days	232	1,200	1,173
Loans Past Due 90 or more Days	1,832	2,034	1,847
Total Loans Past Due	2,064	3,434	3,020
Current Loans	311,835	284,685	260,084
Total Loans	313,899	288,119	263,104
Loans 90 Days or More Past Due and Still Accruing Interest	0	0	0
Nonaccrual Loans	2,073	2,048	1,930
Other Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Past Due 30 - 59 Days	24	37	50
Loans Past Due 60 - 89 Days	8	19	4
Loans Past Due 90 or more Days	9	0	0
Total Loans Past Due	41	56	54
Current Loans	7,372	7,593	7,516
Total Loans	7,413	7,649	7,570
Loans 90 Days or More Past Due and Still Accruing Interest	0	0	0
Nonaccrual Loans	10	0	3
Automobile [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Past Due 30 - 59 Days	2,938	3,233	2,230
Loans Past Due 60 - 89 Days	1,058	1,041	654
Loans Past Due 90 or more Days	257	98	133
Total Loans Past Due	4,253	4,372	3,017
Current Loans	415,300	389,832	389,335
Total Loans	419,553	394,204	392,352
Loans 90 Days or More Past Due and Still Accruing Interest	0	0	11
Nonaccrual Loans	428	219	240
Residential [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Past Due 30 - 59 Days	389	529	200
Loans Past Due 60 - 89 Days	1,379	1,527	1,999
Loans Past Due 90 or more Days	3,064	3,113	2,721
Total Loans Past Due	4,832	5,169	4,920
Current Loans	512,188	455,623	454,347
Total Loans	517,020	460,792	459,267
Loans 90 Days or More Past Due and Still Accruing Interest	243	624	916
Nonaccrual Loans	$ 4,296	$ 3,860	$ 3,729