Allowance for Loan and Lease Losses (Details 3) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Orginated Loans and Leases
Financing Receivable, Impaired [Line Items]
Recorded Investment With No Related Allowance	$ 22,570	$ 24,732
Unpaid Principal Balance With No Related Allowance	33,752	32,687
Recorded Investment With Related Allowance	234
Unpaid Principal Balance With Related Allowance	415
Related Allowance	234	0
Recorded Investment	22,804
Unpaid Principal Balance	34,167
Orginated Loans and Leases | Commercial and Industrial Other
Financing Receivable, Impaired [Line Items]
Recorded Investment With No Related Allowance	4,381	2,771
Unpaid Principal Balance With No Related Allowance	6,287	2,891
Recorded Investment With Related Allowance	234
Unpaid Principal Balance With Related Allowance	415
Related Allowance	234	0
Orginated Loans and Leases | Commercial Real Estate - Construction
Financing Receivable, Impaired [Line Items]
Recorded Investment With No Related Allowance	6,258	6,763
Unpaid Principal Balance With No Related Allowance	11,868	12,373
Related Allowance	0	0
Orginated Loans and Leases | Commercial Real Estate Other
Financing Receivable, Impaired [Line Items]
Recorded Investment With No Related Allowance	11,484	14,715
Unpaid Principal Balance With No Related Allowance	15,150	16,940
Related Allowance	0	0
Orginated Loans and Leases | Residential real estate other
Financing Receivable, Impaired [Line Items]
Recorded Investment With No Related Allowance	447	483
Unpaid Principal Balance With No Related Allowance	447	483
Related Allowance	0	0
Acquired Loans and Leases
Financing Receivable, Impaired [Line Items]
Recorded Investment With No Related Allowance	3,513	2,335
Unpaid Principal Balance With No Related Allowance	6,364	2,380
Recorded Investment With Related Allowance	209	0
Unpaid Principal Balance With Related Allowance	209	0
Related Allowance	63	0
Recorded Investment	3,722	2,335
Unpaid Principal Balance	6,573	2,380
Acquired Loans and Leases | Commercial and Industrial Other
Financing Receivable, Impaired [Line Items]
Recorded Investment With No Related Allowance	1,045	519
Unpaid Principal Balance With No Related Allowance	3,896	519
Recorded Investment With Related Allowance		0
Unpaid Principal Balance With Related Allowance		0
Acquired Loans and Leases | Commercial Real Estate Other
Financing Receivable, Impaired [Line Items]
Recorded Investment With No Related Allowance	2,468	1,816
Unpaid Principal Balance With No Related Allowance	2,468	1,861
Recorded Investment With Related Allowance	209	0
Unpaid Principal Balance With Related Allowance	209	0
Related Allowance	$ 63	$ 0