Allowance for Loan and Lease Losses (Details 1) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016	Mar. 31, 2016	Dec. 31, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]
Ending balance	$ 36,166	$ 35,755
Originated Loans and Leases
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	269	417
Collectively evaluated for impairment	35,646	35,181
Ending balance	35,915	35,598	$ 31,981	$ 31,312
Originated Loans and Leases | Commercial and industrial, total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	45	95
Collectively evaluated for impairment	10,228	9,294
Ending balance	10,273	9,389	9,291	10,495
Originated Loans and Leases | Commercial real estate, total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	224	322
Collectively evaluated for impairment	18,890	19,514
Ending balance	19,114	19,836	17,108	15,479
Originated Loans and Leases | Residential real estate, total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	5,386	5,149
Ending balance	5,386	5,149	4,275	4,070
Originated Loans and Leases | Consumer and other, total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	1,142	1,224
Ending balance	1,142	1,224	1,307	1,268
Originated Loans and Leases | Leases
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	0	0
Ending balance	0	0	0	0
Total Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	196	76
Collectively evaluated for impairment	55	81
Ending balance	251	157	549	692
Total Acquired Loans | Commercial and industrial, total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	0	0
Ending balance	0	0	433	433
Total Acquired Loans | Commercial real estate, total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	76	76
Collectively evaluated for impairment	0	21
Ending balance	76	97	33	61
Total Acquired Loans | Residential real estate, total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	120	0
Collectively evaluated for impairment	49	54
Ending balance	169	54	59	198
Total Acquired Loans | Consumer and other, total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	6	6
Ending balance	6	6	24	0
Total Acquired Loans | Leases
Accounts, Notes, Loans and Financing Receivable [Line Items]
Ending balance	0	0	$ 0	$ 0
Total Acquired Loans | Covered Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	$ 0	0
Ending balance		$ 0