Loans Loan Categories and Past Due Loans(Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Past Due 30 - 59 Days	$ 5,205	$ 4,303
Loans Past Due 60 - 89 Days	2,881	4,388
Loans Past Due 90 or More Days	5,382	5,422
Total Loans Past Due	13,468	14,113
Current Loans	1,399,800	1,252,359
Total Loans	1,413,268	1,266,472
Loans 90 or More Days Past Due and Still Accruing Interest	537	652
Nonaccrual Loans	6,899	6,479
Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Past Due 30 - 59 Days	124	304
Loans Past Due 60 - 89 Days	154	601
Loans Past Due 90 or More Days	345	177
Total Loans Past Due	623	1,082
Current Loans	98,888	86,811
Total Loans	99,511	87,893
Loans 90 or More Days Past Due and Still Accruing Interest	0	28
Nonaccrual Loans	473	352
Commercial Construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Past Due 30 - 59 Days	0	0
Loans Past Due 60 - 89 Days	0	0
Loans Past Due 90 or More Days	0	0
Total Loans Past Due	0	0
Current Loans	18,815	27,815
Total Loans	18,815	27,815
Loans 90 or More Days Past Due and Still Accruing Interest	0	0
Nonaccrual Loans	0	0
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Past Due 30 - 59 Days	432	200
Loans Past Due 60 - 89 Days	7	1,200
Loans Past Due 90 or More Days	1,832	2,034
Total Loans Past Due	2,271	3,434
Current Loans	319,026	284,685
Total Loans	321,297	288,119
Loans 90 or More Days Past Due and Still Accruing Interest	0	0
Nonaccrual Loans	2,071	2,048
Other Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Past Due 30 - 59 Days	30	37
Loans Past Due 60 - 89 Days	4	19
Loans Past Due 90 or More Days	3	0
Total Loans Past Due	37	56
Current Loans	7,628	7,593
Total Loans	7,665	7,649
Loans 90 or More Days Past Due and Still Accruing Interest	0	0
Nonaccrual Loans	4	0
Automobile [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Past Due 30 - 59 Days	4,137	3,233
Loans Past Due 60 - 89 Days	1,221	1,041
Loans Past Due 90 or More Days	203	98
Total Loans Past Due	5,561	4,372
Current Loans	423,815	389,832
Total Loans	429,376	394,204
Loans 90 or More Days Past Due and Still Accruing Interest	0	0
Nonaccrual Loans	411	219
Residential [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Past Due 30 - 59 Days	482	529
Loans Past Due 60 - 89 Days	1,495	1,527
Loans Past Due 90 or More Days	2,999	3,113
Total Loans Past Due	4,976	5,169
Current Loans	531,628	455,623
Total Loans	536,604	460,792
Loans 90 or More Days Past Due and Still Accruing Interest	537	624
Nonaccrual Loans	$ 3,940	$ 3,860