Loans - Schedule of Loan Portfolio Summarized By The Past Due Status (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015	Sep. 30, 2015
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	$ 5,897	$ 8,271
Current	866,126	844,689
Total Loans Receivable	872,023	852,960	$ 825,252
Loans Receivable greater than 90 Days and Accruing	1,840	2,132
30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	359	1,991
60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,672	1,382
Greater than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	3,866	4,898
Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,353	1,548
Current	121,573	116,144
Total Loans Receivable	122,926	117,692	103,245
Loans Receivable greater than 90 Days and Accruing	5	0
Commercial and industrial | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	48	16
Commercial and industrial | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	51	61
Commercial and industrial | Greater than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,254	1,471
Commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	727	1,867
Current	308,434	288,032
Total Loans Receivable	309,161	289,899	279,614
Loans Receivable greater than 90 Days and Accruing	0	0
Commercial real estate | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	152	77
Commercial real estate | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	575	1,047
Commercial real estate | Greater than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	743
Commercial real estate construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	300	374
Current	12,943	13,055
Total Loans Receivable	13,243	13,429	15,057
Loans Receivable greater than 90 Days and Accruing	0	0
Commercial real estate construction | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Commercial real estate construction | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Commercial real estate construction | Greater than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	300	374
Residential mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	3,064	4,016
Current	343,358	353,212
Total Loans Receivable	346,422	357,228	352,651
Loans Receivable greater than 90 Days and Accruing	1,522	1,904
Residential mortgage | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	31	1,686
Residential mortgage | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,034	248
Residential mortgage | Greater than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,999	2,082
Home equity lines of credit
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	422	414
Current	65,267	59,710
Total Loans Receivable	65,689	60,124	59,639
Loans Receivable greater than 90 Days and Accruing	313	228
Home equity lines of credit | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	109	186
Home equity lines of credit | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Home equity lines of credit | Greater than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	313	228
Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	31	52
Current	14,551	14,536
Total Loans Receivable	14,582	14,588	$ 15,046
Loans Receivable greater than 90 Days and Accruing	0	0
Consumer | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	19	26
Consumer | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	12	26
Consumer | Greater than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	$ 0	$ 0