Loans (Allowance for Credit Losses on Financing Receivables) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Allowance for loan losses:
Beginning Balance	$ 8,050	$ 8,034	$ 8,138	$ 8,247	$ 8,247
Charge-offs	(178)	(250)	(1,076)	(892)	(1,162)
Recoveries	16	10	60	84	113
Provisions	385	285	1,151	640	940
Ending Balance	8,273	8,079	8,273	8,079	8,138
Ending balance: individually evaluated for impairment	771	1,045	771	1,045	985
Ending balance: collectively evaluated for impairment	7,502	7,034	7,502	7,034	7,153
Loan receivables:
Loans	846,391	768,841	846,391	768,841	808,240
Ending balance: individually evaluated for impairment	42,068	40,552	42,068	40,552	38,006
Ending balance: collectively evaluated for impairment	804,323	728,289	804,323	728,289	770,234
Commercial Equipment [Member]
Allowance for loan losses:
Beginning Balance	388	217	453	292	292
Charge-offs				(22)	(35)
Recoveries	2	10	25	59	58
Provisions	(35)	55	(123)	(47)	138
Ending Balance	355	282	355	282	453
Ending balance: individually evaluated for impairment	89	23	89	23	83
Ending balance: collectively evaluated for impairment	266	259	266	259	370
Loan receivables:
Loans	25,836	21,085	25,836	21,085	23,738
Ending balance: individually evaluated for impairment	523	317	523	317	317
Ending balance: collectively evaluated for impairment	25,313	20,768	25,313	20,768	23,421
Commercial Loans [Member]
Allowance for loan losses:
Beginning Balance	1,735	1,519	1,916	1,948	1,948
Charge-offs	(175)	(29)	(930)	(434)	(480)
Recoveries	1		4	12	23
Provisions	(226)	273	345	237	425
Ending Balance	1,335	1,763	1,335	1,763	1,916
Ending balance: individually evaluated for impairment	95	292	95	292	304
Ending balance: collectively evaluated for impairment	1,240	1,471	1,240	1,471	1,612
Loan receivables:
Loans	63,681	86,504	63,681	86,504	94,176
Ending balance: individually evaluated for impairment	7,318	11,055	7,318	11,055	10,218
Ending balance: collectively evaluated for impairment	56,363	75,449	56,363	75,449	83,958
Consumer Loans [Member]
Allowance for loan losses:
Beginning Balance	4	14	10	19	19
Charge-offs	(3)	(1)	(3)	(10)	(12)
Recoveries	1		11	2	3
Provisions	1	2	(15)	4
Ending Balance	3	15	3	15	10
Ending balance: collectively evaluated for impairment	3	15	3	15	10
Loan receivables:
Loans	661	902	661	902	838
Ending balance: individually evaluated for impairment		32		32	24
Ending balance: collectively evaluated for impairment	661	870	661	870	814
Home Equity and Second Mortgage [Member]
Allowance for loan losses:
Beginning Balance	283	364	249	280	280
Charge-offs				(111)	(111)
Recoveries	10		10		17
Provisions	(1)	(46)	33	149	63
Ending Balance	292	318	292	318	249
Ending balance: individually evaluated for impairment	59		59
Ending balance: collectively evaluated for impairment	233	318	233	318	249
Loan receivables:
Loans	21,330	21,712	21,330	21,712	21,692
Ending balance: individually evaluated for impairment	548	58	548	58	207
Ending balance: collectively evaluated for impairment	20,782	21,654	20,782	21,654	21,485
Construction and Land Development [Member]
Allowance for loan losses:
Beginning Balance	573	601	584	533	533
Charge-offs				(36)	(36)
Recoveries					1
Provisions	72	(132)	61	(28)	86
Ending Balance	645	469	645	469	584
Ending balance: individually evaluated for impairment	81		81		55
Ending balance: collectively evaluated for impairment	564	469	564	469	529
Loan receivables:
Loans	33,986	31,114	33,986	31,114	32,001
Ending balance: individually evaluated for impairment	7,631	5,350	7,631	5,350	5,666
Ending balance: collectively evaluated for impairment	26,355	25,764	26,355	25,764	26,335
Residential Mortgage [Member]
Allowance for loan losses:
Beginning Balance	1,090	1,961	1,401	1,083	1,083
Charge-offs		(80)	(94)	(139)	(348)
Recoveries	1		1	11	11
Provisions	(12)	(178)	(229)	748	655
Ending Balance	1,079	1,703	1,079	1,703	1,401
Ending balance: individually evaluated for impairment	75	171	75	171	171
Ending balance: collectively evaluated for impairment	1,004	1,532	1,004	1,532	1,230
Loan receivables:
Loans	155,234	161,862	155,234	161,862	159,147
Ending balance: individually evaluated for impairment	3,130	3,883	3,130	3,883	3,401
Ending balance: collectively evaluated for impairment	152,104	157,979	152,104	157,979	155,746
Commercial Real Estate [Member]
Allowance for loan losses:
Beginning Balance	3,977	3,358	3,525	4,092	4,092
Charge-offs		(140)	(49)	(140)	(140)
Recoveries	1		9
Provisions	586	311	1,079	(423)	(427)
Ending Balance	4,564	3,529	4,564	3,529	3,525
Ending balance: individually evaluated for impairment	372	559	372	559	372
Ending balance: collectively evaluated for impairment	4,192	2,970	4,192	2,970	3,153
Loan receivables:
Loans	545,663	445,662	545,663	445,662	476,648
Ending balance: individually evaluated for impairment	22,918	19,857	22,918	19,857	18,173
Ending balance: collectively evaluated for impairment	$ 522,745	$ 425,805	$ 522,745	$ 425,805	$ 458,475