Loans and Allowance for Loan Losses (Details 7) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Summary of key information for impaired loans
Unpaid Principal Balance	$ 16,605	$ 18,301
Impaired Loans	12,311	13,883
Impaired loans with related allowance for loan losses	5,687	9,363
Related allowance for loan losses	2,917	4,224
Commercial [Member]
Summary of key information for impaired loans
Unpaid Principal Balance	15,034	16,719
Impaired Loans	10,743	12,303
Impaired loans with related allowance for loan losses	4,691	8,357
Related allowance for loan losses	2,276	3,544
Commercial [Member] | Owner occupied RE [Member]
Summary of key information for impaired loans
Unpaid Principal Balance	635	964
Impaired Loans	612	863
Impaired loans with related allowance for loan losses	158	863
Related allowance for loan losses	95	260
Commercial [Member] | Non-owner occupied RE [Member]
Summary of key information for impaired loans
Unpaid Principal Balance	9,124	9,144
Impaired Loans	5,671	5,792
Impaired loans with related allowance for loan losses	2,530	4,161
Related allowance for loan losses	861	1,321
Commercial [Member] | Construction [Member]
Summary of key information for impaired loans
Unpaid Principal Balance	1,850	1,855
Impaired Loans	1,768	1,787
Impaired loans with related allowance for loan losses	382	397
Related allowance for loan losses	32	31
Commercial [Member] | Business [Member]
Summary of key information for impaired loans
Unpaid Principal Balance	3,425	4,756
Impaired Loans	2,692	3,861
Impaired loans with related allowance for loan losses	1,621	2,936
Related allowance for loan losses	1,288	1,932
Consumer [Member]
Summary of key information for impaired loans
Unpaid Principal Balance	1,571	1,582
Impaired Loans	1,568	1,580
Impaired loans with related allowance for loan losses	996	1,006
Related allowance for loan losses	641	680
Consumer [Member] | Real estate [Member]
Summary of key information for impaired loans
Unpaid Principal Balance	1,118	1,121
Impaired Loans	1,118	1,121
Impaired loans with related allowance for loan losses	802	805
Related allowance for loan losses	456	489
Consumer [Member] | Home equity [Member]
Summary of key information for impaired loans
Unpaid Principal Balance	260	260
Impaired Loans	257	$ 258
Impaired loans with related allowance for loan losses	194
Related allowance for loan losses	$ 185
Consumer [Member] | Construction [Member]
Summary of key information for impaired loans
Unpaid Principal Balance
Impaired Loans
Impaired loans with related allowance for loan losses
Related allowance for loan losses
Consumer [Member] | Other [Member]
Summary of key information for impaired loans
Unpaid Principal Balance	$ 193	$ 201
Impaired Loans	$ 193	201
Impaired loans with related allowance for loan losses		201
Related allowance for loan losses		$ 191