Loans and Allowance for Loan Losses (Details 4) - USD ($) $ in Thousands	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013
Ending allowance balance attributable to loans:
Individually evaluated for impairment	$ 1,511		$ 1,464
Collectively evaluated for impairment	3,943		3,738
Total ending allowance balance	5,454	$ 5,365	5,202	$ 4,134	$ 4,051	$ 3,764
Loan Portfolio:
Individually evaluated for impairment	7,246		7,752
Collectively evaluated for impairment	350,627		352,433
Total ending loans balance	357,873		360,185
Commercial
Ending allowance balance attributable to loans:
Individually evaluated for impairment	1,308		1,316
Collectively evaluated for impairment	807		748
Total ending allowance balance	2,115	1,990	2,064	749	684	593
Loan Portfolio:
Individually evaluated for impairment	1,850		2,023
Collectively evaluated for impairment	55,645		70,307
Total ending loans balance	57,495		72,330
Commercial real estate
Ending allowance balance attributable to loans:
Individually evaluated for impairment	203		148
Collectively evaluated for impairment	2,750		2,606
Total ending allowance balance	2,953	2,983	2,754	2,891	2,897	2,638
Loan Portfolio:
Individually evaluated for impairment	5,396		5,729
Collectively evaluated for impairment	228,135		217,807
Total ending loans balance	233,531		223,536
Residential real estate
Ending allowance balance attributable to loans:
Collectively evaluated for impairment	223		229
Total ending allowance balance	223	231	229	295	293	356
Loan Portfolio:
Collectively evaluated for impairment	40,607		38,875
Total ending loans balance	40,607		38,875
Consumer - home equity
Ending allowance balance attributable to loans:
Collectively evaluated for impairment	63		60
Total ending allowance balance	63	64	60	100	90	88
Loan Portfolio:
Collectively evaluated for impairment	21,827		21,328
Total ending loans balance	21,827		21,328
Consumer - other
Ending allowance balance attributable to loans:
Collectively evaluated for impairment	100		95
Total ending allowance balance	100	$ 97	95	$ 99	$ 87	$ 89
Loan Portfolio:
Collectively evaluated for impairment	4,413		4,116
Total ending loans balance	$ 4,413		$ 4,116