Allowance For Credit Losses (Allowance for Credit Losses and Recorded Investments in Loans Receivables) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	Dec. 31, 2011
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	$ 6,142	$ 6,307	$ 6,164	$ 5,884	$ 5,884
Charge-offs	(431)	(319)	(894)	(373)	(1,312)
Recoveries	28	29	44	80	112
Provisions	475	426	900	852	1,480
Ending balance	6,214	6,443	6,214	6,443	6,164
Ending balance: individually evaluated for impairment	851	578	851	578	1,185
Ending balance: collectively evaluated for impairment	5,363	5,865	5,363	5,865	4,979
Loans receivables, Ending Balance	407,205	417,473	407,205	417,473	403,684
Loans receivables, Ending Balance: individually evaluated for impairment	9,146	6,976	9,146	6,976	7,574
Loans receivable, Ending Balance: collectively evaluated for impairment	398,059	410,497	398,059	410,497	396,110
Reserve for unfunded loan commitments			99	113	99
Commercial Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	4,967	4,472	4,945	4,387	4,387
Charge-offs	(429)	(6)	(866)	(20)	(768)
Recoveries		1	3	5	9
Provisions	262	218	718	313	1,317
Ending balance	4,800	4,685	4,800	4,685	4,945
Ending balance: individually evaluated for impairment	851	578	851	578	1,185
Ending balance: collectively evaluated for impairment	3,949	4,107	3,949	4,107	3,760
Loans receivables, Ending Balance	338,299	341,006	338,299	341,006	333,417
Loans receivables, Ending Balance: individually evaluated for impairment	6,499	4,809	6,499	4,809	5,348
Loans receivable, Ending Balance: collectively evaluated for impairment	331,800	336,197	331,800	336,197	328,069
Reserve for unfunded loan commitments			90	95	90
Leases financing [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	7	121	10	86	86
Charge-offs	(1)	(187)	(1)	(187)	(200)
Recoveries	10		10	1	3
Provisions	(11)	85	(14)	119	121
Ending balance	5	19	5	19	10
Ending balance: collectively evaluated for impairment	5	19	5	19	10
Loans receivables, Ending Balance	101	385	101	385	191
Loans receivables, Ending Balance: individually evaluated for impairment	60	76	60	76	61
Loans receivable, Ending Balance: collectively evaluated for impairment	41	309	41	309	130
Residential mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	376	521	383	454	454
Charge-offs		(126)	(18)	(166)	(280)
Recoveries	5	16	10	62	79
Provisions	(3)	(25)	3	36	130
Ending balance	378	386	378	386	383
Ending balance: collectively evaluated for impairment	378	386	378	386	383
Loans receivables, Ending Balance	26,051	28,887	26,051	28,887	26,461
Loans receivables, Ending Balance: individually evaluated for impairment	2,428	2,031	2,428	2,031	2,014
Loans receivable, Ending Balance: collectively evaluated for impairment	23,623	26,856	23,623	26,856	24,447
Consumer [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	273	486	260	482	482
Charge-offs	(1)		(9)		(64)
Recoveries	13	12	21	12	21
Provisions	(17)	(16)	(4)	(12)	(179)
Ending balance	268	482	268	482	260
Ending balance: collectively evaluated for impairment	268	482	268	482	260
Loans receivables, Ending Balance	42,754	47,195	42,754	47,195	43,615
Loans receivables, Ending Balance: individually evaluated for impairment	159	60	159	60	151
Loans receivable, Ending Balance: collectively evaluated for impairment	42,595	47,135	42,595	47,135	43,464
Reserve for unfunded loan commitments			9	18	9
Unallocated [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	519	707	566	475	475
Provisions	244	164	197	396	91
Ending balance	763	871	763	871	566
Ending balance: collectively evaluated for impairment	$ 763	$ 871	$ 763	$ 871	$ 566