Fair Value (Assets and Liabilities Measured at Fair Value on Recurring Basis) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Assets:
Derivative Assets	$ 449	$ 866
Derivative Liabilities	388	737
Fair Value, Measurements, Recurring [Member]
Assets:
Securities	615,392	606,032
Loans Held-for-Sale	8,812	9,265
Derivative Assets	449	866
Derivative Liabilities	388	737
Fair Value, Measurements, Recurring [Member] | U.S. Treasury and Agency Securities [Member]
Assets:
Securities	19,321	18,952
Fair Value, Measurements, Recurring [Member] | Corporate Securities [Member]
Assets:
Securities	0	0
Fair Value, Measurements, Recurring [Member] | Obligations of State and Political Subdivisions [Member]
Assets:
Securities	129,956	113,497
Fair Value, Measurements, Recurring [Member] | Mortgage-backed Securities - Residential [Member]
Assets:
Securities	465,762	473,230
Fair Value, Measurements, Recurring [Member] | Equity Securities [Member]
Assets:
Securities	353	353
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Assets:
Securities	0	0
Loans Held-for-Sale	0	0
Derivative Assets	0	0
Derivative Liabilities	0	0
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | U.S. Treasury and Agency Securities [Member]
Assets:
Securities	0	0
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Corporate Securities [Member]
Assets:
Securities	0	0
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Obligations of State and Political Subdivisions [Member]
Assets:
Securities	0	0
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Mortgage-backed Securities - Residential [Member]
Assets:
Securities	0	0
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Equity Securities [Member]
Assets:
Securities	0	0
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member]
Assets:
Securities	604,477	594,847
Loans Held-for-Sale	8,812	9,265
Derivative Assets	449	866
Derivative Liabilities	388	737
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | U.S. Treasury and Agency Securities [Member]
Assets:
Securities	19,321	18,952
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Corporate Securities [Member]
Assets:
Securities	0	0
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Obligations of State and Political Subdivisions [Member]
Assets:
Securities	119,394	102,665
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Mortgage-backed Securities - Residential [Member]
Assets:
Securities	465,762	473,230
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Equity Securities [Member]
Assets:
Securities	0	0
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Assets:
Securities	10,915	11,185
Loans Held-for-Sale	0	0
Derivative Assets	0	0
Derivative Liabilities	0	0
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | U.S. Treasury and Agency Securities [Member]
Assets:
Securities	0	0
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Corporate Securities [Member]
Assets:
Securities	0	0
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Obligations of State and Political Subdivisions [Member]
Assets:
Securities	10,562	10,832
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Mortgage-backed Securities - Residential [Member]
Assets:
Securities	0	0
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Equity Securities [Member]
Assets:
Securities	$ 353	$ 353