Loans (Allowance For Loan Losses And Recorded Investment In Financing Receivables) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2011
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan Losses, Beginning Balance	$ 15,322	$ 14,700	$ 15,482	$ 15,252
Charge-offs	(463)	(498)	(3,280)	(3,479)
Recoveries	9	10	416	29
Provision for loan losses	1,125	1,200	3,375	3,610
Allowance for Loan Losses, Ending Balance	15,993	15,412	15,993	15,412
Allowance for loan losses: Ending balance: individually evaluated for impairment	15	1,253	15	1,253	1,181
Allowance for loan losses: Ending balance: collectively evaluated for impairment	15,978	14,159	15,978	14,159	14,301
Loans receivables, Ending Balance	702,075	682,009	702,075	682,009	694,468
Loans receivables: Ending balance: individually evaluated for impairment	12,150	15,016	12,150	15,016	12,846
Loans Receivable: Ending balance: collectively evaluated for impairment	689,925	666,993	689,925	666,993	681,622
Commercial and industrial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan Losses, Beginning Balance	1,515	1,934	2,582	2,074
Charge-offs	(49)	(39)	(2,136)	(662)
Recoveries	7	8	15	25
Provision for loan losses	87	1,119	1,099	1,585
Allowance for Loan Losses, Ending Balance	1,560	3,022	1,560	3,022
Allowance for loan losses: Ending balance: individually evaluated for impairment		1,135		1,135	1,085
Allowance for loan losses: Ending balance: collectively evaluated for impairment	1,560	1,887	1,560	1,887	1,497
Loans receivables, Ending Balance	53,201	63,986	53,201	63,986	56,145
Loans receivables: Ending balance: individually evaluated for impairment	209	3,390	209	3,390	2,219
Loans Receivable: Ending balance: collectively evaluated for impairment	52,992	60,596	52,992	60,596	53,926
Commercial real estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan Losses, Beginning Balance	6,369	6,187	6,007	6,346
Charge-offs	(244)	(102)	(283)	(1,237)
Recoveries			250
Provision for loan losses	264	212	415	1,188
Allowance for Loan Losses, Ending Balance	6,389	6,297	6,389	6,297
Allowance for loan losses: Ending balance: individually evaluated for impairment	15	24	15	24	43
Allowance for loan losses: Ending balance: collectively evaluated for impairment	6,374	6,273	6,374	6,273	5,964
Loans receivables, Ending Balance	239,397	230,068	239,397	230,068	236,017
Loans receivables: Ending balance: individually evaluated for impairment	9,572	6,663	9,572	6,663	6,612
Loans Receivable: Ending balance: collectively evaluated for impairment	229,825	223,405	229,825	223,405	229,405
Commercial real estate construction [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan Losses, Beginning Balance	537	576	548	1,154
Charge-offs	(158)	(77)	(538)	(1,155)
Recoveries	1		149
Provision for loan losses	148	91	369	591
Allowance for Loan Losses, Ending Balance	528	590	528	590
Allowance for loan losses: Ending balance: collectively evaluated for impairment	528	590	528	590	548
Loans receivables, Ending Balance	19,211	21,167	19,211	21,167	22,757
Loans receivables: Ending balance: individually evaluated for impairment	877	2,903	877	2,903	2,614
Loans Receivable: Ending balance: collectively evaluated for impairment	18,334	18,264	18,334	18,264	20,143
Residential mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan Losses, Beginning Balance	3,633	3,581	3,624	3,108
Charge-offs	(9)	(265)	(218)	(385)
Recoveries				2
Provision for loan losses	83	183	301	774
Allowance for Loan Losses, Ending Balance	3,707	3,499	3,707	3,499
Allowance for loan losses: Ending balance: individually evaluated for impairment		94		94	53
Allowance for loan losses: Ending balance: collectively evaluated for impairment	3,707	3,405	3,707	3,405	3,571
Loans receivables, Ending Balance	321,987	298,830	321,987	298,830	311,266
Loans receivables: Ending balance: individually evaluated for impairment	1,492	2,060	1,492	2,060	1,401
Loans Receivable: Ending balance: collectively evaluated for impairment	320,495	296,770	320,495	296,770	309,865
Home equity lines of credit [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan Losses, Beginning Balance	522	365	507	341
Charge-offs		(10)	(51)	(10)
Provision for loan losses	6	172	72	196
Allowance for Loan Losses, Ending Balance	528	527	528	527
Allowance for loan losses: Ending balance: collectively evaluated for impairment	528	527	528	527	507
Loans receivables, Ending Balance	52,830	52,567	52,830	52,567	52,532
Loans Receivable: Ending balance: collectively evaluated for impairment	52,830	52,567	52,830	52,567	52,532
Consumer [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan Losses, Beginning Balance	505	390	419	520
Charge-offs	(3)	(5)	(54)	(30)
Recoveries	1	2	2	2
Provision for loan losses	21	(2)	157	(107)
Allowance for Loan Losses, Ending Balance	524	385	524	385
Allowance for loan losses: Ending balance: collectively evaluated for impairment	524	385	524	385	419
Loans receivables, Ending Balance	15,449	15,391	15,449	15,391	15,751
Loans Receivable: Ending balance: collectively evaluated for impairment	15,449	15,391	15,449	15,391	15,751
Unallocated [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan Losses, Beginning Balance	2,241	1,667	1,795	1,709
Provision for loan losses	516	(575)	962	(617)
Allowance for Loan Losses, Ending Balance	2,757	1,092	2,757	1,092
Allowance for loan losses: Ending balance: collectively evaluated for impairment	$ 2,757	$ 1,092	$ 2,757	$ 1,092	$ 1,795