Loans Receivable and Related Allowance for Loan Losses (Details 5) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	$ 5,370	$ 5,046	$ 5,224	$ 4,869
Charge-offs	(209)	(92)	(509)	(289)
Recoveries	20	13	95	42
Provision for loan losses	(102)	163	269	508
Ending Balance	5,079	5,130	5,079	5,130
Ending ALL balance attributable to loans:
Individually evaluated for impairment	191		191		$ 790
Collectively evaluated for impairment	4,888		4,888		4,434
Total loans:
Individually evaluated for impairment	3,811		3,811		6,487
Collectively evaluated for impairment	407,312		407,312		378,385
Residential first mortgages [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	1,258	917	955	923
Charge-offs	(43)	(38)	(47)	(135)
Recoveries	0	0	0	0
Provision for loan losses	173	62	480	153
Ending Balance	1,388	941	1,388	941
Ending ALL balance attributable to loans:
Individually evaluated for impairment	28		28		27
Collectively evaluated for impairment	1,360		1,360		928
Total loans:
Individually evaluated for impairment	170		170		285
Collectively evaluated for impairment	133,458		133,458		106,888
Home equity and lines of credit [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	622	468	543	625
Charge-offs	(128)	(30)	(213)	(44)
Recoveries	0	0	30	0
Provision for loan losses	122	101	256	(42)
Ending Balance	616	539	616	539
Ending ALL balance attributable to loans:
Individually evaluated for impairment	0		0		0
Collectively evaluated for impairment	616		616		543
Total loans:
Individually evaluated for impairment	0		0		0
Collectively evaluated for impairment	89,398		89,398		89,106
Commercial real estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	2,161	2,375	2,338	2,450
Charge-offs	(35)	0	(35)	(2)
Recoveries	6	4	18	13
Provision for loan losses	(164)	(11)	(353)	(93)
Ending Balance	1,968	2,368	1,968	2,368
Ending ALL balance attributable to loans:
Individually evaluated for impairment	5		5		268
Collectively evaluated for impairment	1,963		1,963		2,070
Total loans:
Individually evaluated for impairment	2,624		2,624		3,529
Collectively evaluated for impairment	110,062		110,062		107,281
Commercial business [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	1,282	1,233	1,336	822
Charge-offs	0	0	(182)	(17)
Recoveries	12	0	31	7
Provision for loan losses	(232)	(3)	(123)	418
Ending Balance	1,062	1,230	1,062	1,230
Ending ALL balance attributable to loans:
Individually evaluated for impairment	158		158		495
Collectively evaluated for impairment	904		904		841
Total loans:
Individually evaluated for impairment	1,017		1,017		2,673
Collectively evaluated for impairment	67,482		67,482		67,512
Consumer [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	47	53	52	49
Charge-offs	(3)	(24)	(32)	(91)
Recoveries	2	9	16	22
Provision for loan losses	(1)	14	9	72
Ending Balance	45	$ 52	45	$ 52
Ending ALL balance attributable to loans:
Individually evaluated for impairment	0		0		0
Collectively evaluated for impairment	45		45		52
Total loans:
Individually evaluated for impairment	0		0		0
Collectively evaluated for impairment	$ 6,912		$ 6,912		$ 7,598