Credit Quality Assessment (Information by Credit Risk Rating Indicators for Those Remaining Segments of Loan Portfolio) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Financing Receivable, Recorded Investment [Line Items]
Total loans and leases	$ 2,975,912	$ 2,784,266
Leases [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans and leases	156	703
Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans and leases	410,723	373,657
Residential Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans and leases	698,925	618,381
Residential Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans and leases	141,883	129,177
Residential Real Estate Portfolio Segment [Member] | Residential Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans and leases	698,925	618,381
Residential Real Estate Portfolio Segment [Member] | Residential Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans and leases	141,883	129,177
Performing Financing Receivable [Member] | Leases [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans and leases	156	703
Performing Financing Receivable [Member] | Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans and leases	408,887	371,368
Performing Financing Receivable [Member] | Residential Real Estate Portfolio Segment [Member] | Residential Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans and leases	691,060	607,449
Performing Financing Receivable [Member] | Residential Real Estate Portfolio Segment [Member] | Residential Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans and leases	139,386	126,862
Nonperforming Financing Receivable [Member] | Consumer [Member] | Loans 90 Days Or More Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans and leases	6	1
Nonperforming Financing Receivable [Member] | Consumer [Member] | Non Accrual Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans and leases	1,830	2,259
Nonperforming Financing Receivable [Member] | Consumer [Member] | Restructured Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans and leases		29
Nonperforming Financing Receivable [Member] | Residential Real Estate Portfolio Segment [Member] | Residential Mortgage [Member] | Non Accrual Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans and leases	4,417	5,735
Nonperforming Financing Receivable [Member] | Residential Real Estate Portfolio Segment [Member] | Residential Mortgage [Member] | Restructured Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans and leases	3,448	5,197
Nonperforming Financing Receivable [Member] | Residential Real Estate Portfolio Segment [Member] | Residential Construction [Member] | Non Accrual Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans and leases	2,497	2,315
Homogeneous Loan Pools [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans and leases	1,251,687	1,121,918
Homogeneous Loan Pools [Member] | Performing Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans and leases	1,239,489	1,106,382
Homogeneous Loan Pools [Member] | Nonperforming Financing Receivable [Member] | Loans 90 Days Or More Past Due [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans and leases	6	1
Homogeneous Loan Pools [Member] | Nonperforming Financing Receivable [Member] | Non Accrual Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans and leases	8,744	10,309
Homogeneous Loan Pools [Member] | Nonperforming Financing Receivable [Member] | Restructured Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans and leases	$ 3,448	$ 5,226