Loans and Allowance for Loan Losses (Details 3) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Analysis of changes in the allowance for loan losses
Balance at beginning of period	$ 5,365	$ 4,051	$ 5,202	$ 3,764
Loan charge-offs	(78)	(92)	(113)	(239)
Recoveries	37	25	75	309
Net loan recoveries (charge-offs)	(41)	(67)	(38)	70
Provision charged to operations	130	150	290	300
Balance at end of period	5,454	4,134	5,454	4,134
Commercial
Analysis of changes in the allowance for loan losses
Balance at beginning of period	1,990	684	2,064	593
Loan charge-offs	(2)		(2)	(112)
Recoveries	1		2	262
Net loan recoveries (charge-offs)	(1)			150
Provision charged to operations	126	65	51	6
Balance at end of period	2,115	749	2,115	749
Commercial real estate
Analysis of changes in the allowance for loan losses
Balance at beginning of period	2,983	2,897	2,754	2,638
Loan charge-offs	(50)		(50)
Recoveries	10		10
Net loan recoveries (charge-offs)	(40)		(40)
Provision charged to operations	10	(6)	239	253
Balance at end of period	2,953	2,891	2,953	2,891
Residential real estate
Analysis of changes in the allowance for loan losses
Balance at beginning of period	231	293	229	356
Loan charge-offs	(3)	(19)	(5)	(19)
Recoveries	4	1	15	2
Net loan recoveries (charge-offs)	1	(18)	10	(17)
Provision charged to operations	(9)	20	(16)	(44)
Balance at end of period	223	295	223	295
Consumer - home equity
Analysis of changes in the allowance for loan losses
Balance at beginning of period	64	90	60	88
Loan charge-offs		(39)		(39)
Recoveries	4	3	9	8
Net loan recoveries (charge-offs)	4	(36)	9	(31)
Provision charged to operations	(5)	46	(6)	43
Balance at end of period	63	100	63	100
Consumer - other
Analysis of changes in the allowance for loan losses
Balance at beginning of period	97	87	95	89
Loan charge-offs	(23)	(34)	(56)	(69)
Recoveries	18	21	39	37
Net loan recoveries (charge-offs)	(5)	(13)	(17)	(32)
Provision charged to operations	8	25	22	42
Balance at end of period	$ 100	$ 99	$ 100	$ 99