Loans and Allowance for Loan Losses (Details 5) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Summary of key information for impaired loans
Unpaid Principal Balance	$ 18,719	$ 19,865
Impaired Loans	14,846	15,212
Impaired loans with related allowance for loan losses	9,794	10,636
Related allowance for loan losses	4,704	5,046
Commercial [Member]
Summary of key information for impaired loans
Unpaid Principal Balance	16,395	17,588
Impaired Loans	12,560	12,935
Impaired loans with related allowance for loan losses	8,075	8,680
Related allowance for loan losses	3,700	3,960
Commercial [Member] | Owner occupied RE [Member]
Summary of key information for impaired loans
Unpaid Principal Balance	1,531	1,122
Impaired Loans	1,506	1,122
Impaired loans with related allowance for loan losses	1,506	1,060
Related allowance for loan losses	490	371
Commercial [Member] | Non-owner occupied RE [Member]
Summary of key information for impaired loans
Unpaid Principal Balance	8,342	5,813
Impaired Loans	4,997	4,522
Impaired loans with related allowance for loan losses	3,091	2,777
Related allowance for loan losses	778	801
Commercial [Member] | Construction [Member]
Summary of key information for impaired loans
Unpaid Principal Balance	1,931	5,268
Impaired Loans	1,931	2,726
Impaired loans with related allowance for loan losses	532	1,315
Related allowance for loan losses	166	324
Commercial [Member] | Business [Member]
Summary of key information for impaired loans
Unpaid Principal Balance	4,591	5,385
Impaired Loans	4,126	4,565
Impaired loans with related allowance for loan losses	2,946	3,528
Related allowance for loan losses	2,266	2,464
Consumer [Member]
Summary of key information for impaired loans
Unpaid Principal Balance	2,324	2,277
Impaired Loans	2,286	2,277
Impaired loans with related allowance for loan losses	1,719	1,956
Related allowance for loan losses	1,004	1,086
Consumer [Member] | Real estate [Member]
Summary of key information for impaired loans
Unpaid Principal Balance	1,702	1,620
Impaired Loans	1,664	1,620
Impaired loans with related allowance for loan losses	1,346	1,299
Related allowance for loan losses	631	585
Consumer [Member] | Home equity [Member]
Summary of key information for impaired loans
Unpaid Principal Balance	406	347
Impaired Loans	406	347
Impaired loans with related allowance for loan losses	157	347
Related allowance for loan losses	$ 157	$ 191
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	$ 216	$ 310
Impaired Loans	216	310
Impaired loans with related allowance for loan losses	216	310
Related allowance for loan losses	$ 216	$ 310