Loans (Allowance For Loan Losses And Recorded Investment In Financing Receivables) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan Losses, Beginning Balance				$ 15,482				$ 15,252	$ 15,482	$ 15,252	$ 11,981
Charge-offs									(3,757)	(5,243)	(3,181)
Recoveries									425	38	42
Provision for loan losses	1,300	1,125	1,125	1,125	1,825	1,200	1,310	1,100	4,675	5,435	6,410
Allowance for Loan Losses, Ending Balance	16,825				15,482				16,825	15,482	15,252
Allowance for loan losses: Ending balance: individually evaluated for impairment	36				1,181				36	1,181
Allowance for loan losses: Ending balance: collectively evaluated for impairment	16,789				14,301				16,789	14,301
Loans receivables, Ending Balance	708,136				694,468				708,136	694,468
Loans receivables: Ending balance: individually evaluated for impairment	11,142				12,846				11,142	12,846
Loans Receivable: Ending balance: collectively evaluated for impairment	696,994				681,622				696,994	681,622
Commercial and industrial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan Losses, Beginning Balance				2,582				2,074	2,582	2,074
Charge-offs									(2,180)	(1,861)
Recoveries									22	34
Provision for loan losses									1,083	2,335
Allowance for Loan Losses, Ending Balance	1,507				2,582				1,507	2,582
Allowance for loan losses: Ending balance: individually evaluated for impairment	29				1,085				29	1,085
Allowance for loan losses: Ending balance: collectively evaluated for impairment	1,478				1,497				1,478	1,497
Loans receivables, Ending Balance	49,004				56,145				49,004	56,145
Loans receivables: Ending balance: individually evaluated for impairment	341				2,219				341	2,219
Loans Receivable: Ending balance: collectively evaluated for impairment	48,663				53,926				48,663	53,926
Commercial real estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan Losses, Beginning Balance				6,007				6,346	6,007	6,346
Charge-offs									(417)	(1,308)
Recoveries									250
Provision for loan losses									736	969
Allowance for Loan Losses, Ending Balance	6,576				6,007				6,576	6,007
Allowance for loan losses: Ending balance: individually evaluated for impairment	7				43				7	43
Allowance for loan losses: Ending balance: collectively evaluated for impairment	6,569				5,964				6,569	5,964
Loans receivables, Ending Balance	243,019				236,017				243,019	236,017
Loans receivables: Ending balance: individually evaluated for impairment	9,009				6,612				9,009	6,612
Loans Receivable: Ending balance: collectively evaluated for impairment	234,010				229,405				234,010	229,405
Commercial real estate construction [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan Losses, Beginning Balance				548				1,154	548	1,154
Charge-offs									(538)	(1,242)
Recoveries									149
Provision for loan losses									359	636
Allowance for Loan Losses, Ending Balance	518				548				518	548
Allowance for loan losses: Ending balance: collectively evaluated for impairment	518				548				518	548
Loans receivables, Ending Balance	19,154				22,757				19,154	22,757
Loans receivables: Ending balance: individually evaluated for impairment	854				2,614				854	2,614
Loans Receivable: Ending balance: collectively evaluated for impairment	18,300				20,143				18,300	20,143
Residential mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan Losses, Beginning Balance				3,624				3,108	3,624	3,108
Charge-offs									(500)	(750)
Recoveries									1	2
Provision for loan losses									596	1,264
Allowance for Loan Losses, Ending Balance	3,721				3,624				3,721	3,624
Allowance for loan losses: Ending balance: individually evaluated for impairment					53					53
Allowance for loan losses: Ending balance: collectively evaluated for impairment	3,721				3,571				3,721	3,571
Loans receivables, Ending Balance	328,836				311,266				328,836	311,266
Loans receivables: Ending balance: individually evaluated for impairment	938				1,401				938	1,401
Loans Receivable: Ending balance: collectively evaluated for impairment	327,898				309,865				327,898	309,865
Home equity lines of credit [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan Losses, Beginning Balance				507				341	507	341
Charge-offs									(51)	(52)
Provision for loan losses									61	218
Allowance for Loan Losses, Ending Balance	517				507				517	507
Allowance for loan losses: Ending balance: collectively evaluated for impairment	517				507				517	507
Loans receivables, Ending Balance	53,130				52,532				53,130	52,532
Loans Receivable: Ending balance: collectively evaluated for impairment	53,130				52,532				53,130	52,532
Consumer [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan Losses, Beginning Balance				419				520	419	520
Charge-offs									(71)	(30)
Recoveries									3	2
Provision for loan losses									282	(73)
Allowance for Loan Losses, Ending Balance	633				419				633	419
Allowance for loan losses: Ending balance: collectively evaluated for impairment	633				419				633	419
Loans receivables, Ending Balance	14,993				15,751				14,993	15,751
Loans Receivable: Ending balance: collectively evaluated for impairment	14,993				15,751				14,993	15,751
Unallocated [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for Loan Losses, Beginning Balance				1,795				1,709	1,795	1,709
Provision for loan losses									1,558	86
Allowance for Loan Losses, Ending Balance	3,353				1,795				3,353	1,795
Allowance for loan losses: Ending balance: collectively evaluated for impairment	$ 3,353				$ 1,795				$ 3,353	$ 1,795