Loans and Allowance for Credit Losses (Details 1) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans individually evaluated for impairment	$ 32,362	$ 30,141
Loans collectively evaluated for impairment	708,668	680,605
Total loans	741,030	710,746
Allowance for credit losses allocated to:
Loans individually evaluated for impairment	1,062	1,273
Loans collectively evaluated for impairment	6,855	6,422
Total allowance for credit losses	7,917	7,695
Construction [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans individually evaluated for impairment	12,400	10,067
Loans collectively evaluated for impairment	68,315	59,090
Total loans	80,715	69,157
Allowance for credit losses allocated to:
Loans individually evaluated for impairment	696	41
Loans collectively evaluated for impairment	1,156	1,262
Total allowance for credit losses	1,852	1,303
Residential real estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans individually evaluated for impairment	10,726	10,403
Loans collectively evaluated for impairment	267,872	262,933
Total loans	278,598	273,336
Allowance for credit losses allocated to:
Loans individually evaluated for impairment	336	1,099
Loans collectively evaluated for impairment	1,982	1,735
Total allowance for credit losses	2,318	2,834
Commercial real estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans individually evaluated for impairment	8,896	9,359
Loans collectively evaluated for impairment	308,235	296,429
Total loans	317,131	305,788
Allowance for credit losses allocated to:
Loans individually evaluated for impairment	21	129
Loans collectively evaluated for impairment	2,595	2,250
Total allowance for credit losses	2,616	2,379
Commercial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans individually evaluated for impairment	217	188
Loans collectively evaluated for impairment	57,083	52,483
Total loans	57,300	52,671
Allowance for credit losses allocated to:
Loans individually evaluated for impairment	9	1
Loans collectively evaluated for impairment	496	447
Total allowance for credit losses	505	448
Consumer [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans individually evaluated for impairment	123	124
Loans collectively evaluated for impairment	7,163	9,670
Total loans	7,286	9,794
Allowance for credit losses allocated to:
Loans individually evaluated for impairment	0	3
Loans collectively evaluated for impairment	168	226
Total allowance for credit losses	168	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	458	502
Total allowance for credit losses	$ 458	$ 502