Loans and Allowance for Loan Losses (Details 3) - Commercial [Member] - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Outstanding commercial and consumer loans which include loans on nonaccrual status
Current	$ 968,549	$ 905,335
30-59 days past due	861	545
60-89 days past due
Greater than 90 days	295	1,073
Total commercial loans	969,705	906,953
Owner occupied RE [Member]
Outstanding commercial and consumer loans which include loans on nonaccrual status
Current	338,915	316,818
30-59 days past due	529
60-89 days past due
Greater than 90 days
Total commercial loans	339,444	316,818
Non-owner occupied RE [Member]
Outstanding commercial and consumer loans which include loans on nonaccrual status
Current	339,038	312,477
30-59 days past due		129
60-89 days past due
Greater than 90 days	193	192
Total commercial loans	339,231	312,798
Construction [Member]
Outstanding commercial and consumer loans which include loans on nonaccrual status
Current	56,210	51,179
30-59 days past due
60-89 days past due
Greater than 90 days
Total commercial loans	56,210	51,179
Business [Member]
Outstanding commercial and consumer loans which include loans on nonaccrual status
Current	234,386	224,861
30-59 days past due	332	416
60-89 days past due
Greater than 90 days	102	881
Total commercial loans	$ 234,820	$ 226,158