Loans and Allowance for Loan and Lease Losses (Allowance For Loan Losses And Recorded Investment In Financing Receivables) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended			3 Months Ended			3 Months Ended			3 Months Ended							3 Months Ended			3 Months Ended			3 Months Ended			3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012	Mar. 31, 2013 Commercial and industrial [Member]	Mar. 31, 2012 Commercial and industrial [Member]	Dec. 31, 2012 Commercial and industrial [Member]	Mar. 31, 2013 Commercial real estate [Member]	Mar. 31, 2012 Commercial real estate [Member]	Dec. 31, 2012 Commercial real estate [Member]	Mar. 31, 2013 Commercial real estate - construction [Member]	Mar. 31, 2012 Commercial real estate - construction [Member]	Dec. 31, 2012 Commercial real estate - construction [Member]	Mar. 31, 2013 Lease financing [Member]	Dec. 31, 2012 Lease financing [Member]	Mar. 31, 2012 Lease financing [Member]	Dec. 31, 2011 Lease financing [Member]	Mar. 31, 2013 Residential mortgage [Member]	Mar. 31, 2012 Residential mortgage [Member]	Dec. 31, 2012 Residential mortgage [Member]	Mar. 31, 2013 Home equity [Member]	Mar. 31, 2012 Home equity [Member]	Dec. 31, 2012 Home equity [Member]	Mar. 31, 2013 Consumer [Member]	Mar. 31, 2012 Consumer [Member]	Dec. 31, 2012 Consumer [Member]	Mar. 31, 2013 Unallocated [Member]	Mar. 31, 2012 Unallocated [Member]	Dec. 31, 2012 Unallocated [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan and lease losses, Beginning Balance	$ 5,509	$ 6,772		$ 1,298	$ 2,274		$ 3,112	$ 3,544		$ 64	$ 23		$ 1	$ 1	$ 2	$ 2	$ 581	$ 362		$ 343	$ 337		$ 101	$ 87		$ 9	$ 143
Charge-offs	(155)	(522)		(21)	(204)		(25)	(306)									(104)	(10)					(5)	(2)
Recoveries	21	27		7	4		3	3			2									3	8		8	10
Provision for loan and lease losses	495	300		(3)	(319)		453	121		(25)	2						126	102		3	(22)		1	429		(60)	(13)
Allowance for Loan Losses, Ending Balance	5,870	6,577		1,281	1,755		3,543	3,362		39	27		1	1	2	2	603	454		349	323		105	524		(51)	130
Allowance for loan losses: Ending balance: individually evaluated for impairment	1,713	1,757	1,383	83	320	111	1,580	975	1,200	28		54					5	2		17	15	18		445
Allowance for loan losses: Ending balance: collectively evaluated for impairment	4,157	4,820	4,126	1,198	1,435	1,187	1,963	2,387	1,912	11	27	10	1	1	2		598	452	581	332	308	325	105	79	101	(51)	130	9
Loans receivables, Ending Balance	495,196	488,670	484,220	83,479	77,481	77,883	285,873	297,373	284,867	35,278	30,304	33,231	1,256	1,305	1,724		59,359	49,778	57,455	22,800	24,115	22,920	7,151	7,895	6,559
Loans receivables: Ending balance: individually evaluated for impairment	11,323	10,896	9,744	393	1,374	415	10,628	8,470	9,084	54	115	54					60	17		188	335	191		585
Loans Receivable: Ending balance: collectively evaluated for impairment	$ 483,873	$ 477,774	$ 474,476	$ 83,086	$ 76,107	$ 77,468	$ 275,245	$ 288,903	$ 275,783	$ 35,224	$ 30,189	$ 33,177	$ 1,256	$ 1,305	$ 1,724		$ 59,299	$ 49,761	$ 57,455	$ 22,612	$ 23,780	$ 22,729	$ 7,151	$ 7,310	$ 6,559