Loans and Allowance for Credit Losses (Details 1) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans individually evaluated for impairment	$ 29,574	$ 30,141
Loans collectively evaluated for impairment	747,488	680,605
Total loans	777,062	710,746
Allowance for credit losses allocated to:
Loans individually evaluated for impairment	1,228	1,273
Loans collectively evaluated for impairment	6,870	6,422
Total allowance for credit losses	8,098	7,695
Construction [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans individually evaluated for impairment	11,766	10,067
Loans collectively evaluated for impairment	74,782	59,090
Total loans	86,548	69,157
Allowance for credit losses allocated to:
Loans individually evaluated for impairment	676	41
Loans collectively evaluated for impairment	1,166	1,262
Total allowance for credit losses	1,842	1,303
Residential real estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans individually evaluated for impairment	10,753	10,403
Loans collectively evaluated for impairment	292,384	262,933
Total loans	303,137	273,336
Allowance for credit losses allocated to:
Loans individually evaluated for impairment	363	1,099
Loans collectively evaluated for impairment	1,928	1,735
Total allowance for credit losses	2,291	2,834
Commercial real estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans individually evaluated for impairment	6,768	9,359
Loans collectively evaluated for impairment	316,392	296,429
Total loans	323,160	305,788
Allowance for credit losses allocated to:
Loans individually evaluated for impairment	189	129
Loans collectively evaluated for impairment	2,622	2,250
Total allowance for credit losses	2,811	2,379
Commercial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans individually evaluated for impairment	165	188
Loans collectively evaluated for impairment	56,964	52,483
Total loans	57,129	52,671
Allowance for credit losses allocated to:
Loans individually evaluated for impairment	0	1
Loans collectively evaluated for impairment	499	447
Total allowance for credit losses	499	448
Consumer [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans individually evaluated for impairment	122	124
Loans collectively evaluated for impairment	6,966	9,670
Total loans	7,088	9,794
Allowance for credit losses allocated to:
Loans individually evaluated for impairment	0	3
Loans collectively evaluated for impairment	156	226
Total allowance for credit losses	156	229
Unallocated [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans individually evaluated for impairment	0	0
Loans collectively evaluated for impairment	0	0
Total loans	0	0
Allowance for credit losses allocated to:
Loans individually evaluated for impairment	0	0
Loans collectively evaluated for impairment	499	502
Total allowance for credit losses	$ 499	$ 502