Fair Value (Summary of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis) (Details) - USD ($)	12 Months Ended
Dec. 31, 2015	Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Held-for-sale, Fair Value Disclosure	$ 10,958,000
Loans Held-for-sale	10,958,000	$ 0
Unrealized gain (loss) on loans held for sale	133,000
Unpaid principal balance loans held for sale	10,800,000
Financial Assets:
AFS securities	750,338,000	763,063,000
Customer interest rate swaps	3,166,000	1,140,000
Financial Liabilities:
Customer interest rate swaps	3,166,000	1,140,000
Obligations of states and political subdivisions [Member]
Financial Assets:
AFS securities	17,694,000	26,777,000
Mortgage-backed securities issued or guaranteed by U.S. government sponsored enterprises [Member]
Financial Assets:
AFS securities	419,046,000	381,308,000
Collateralized mortgage obligations issued or guaranteed by U.S. government sponsored enterprises [Member]
Financial Assets:
AFS securities	306,857,000	343,897,000
Equity Securities [Member]
Financial Assets:
AFS securities	705,000
Private issue collateralized mortgage obligations [Member]
Financial Assets:
AFS securities		6,054,000
Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Held-for-sale	10,958,000
Financial Assets:
Customer interest rate swaps	3,166,000	1,140,000
Financial Liabilities:
Interest rate swaps	9,229,000	9,143,000
Customer interest rate swaps		1,140,000
Fair Value, Measurements, Recurring [Member] \| Obligations of U.S. government sponsored enterprises [Member]
Financial Assets:
AFS securities	5,040,000	5,027,000
Fair Value, Measurements, Recurring [Member] \| Obligations of states and political subdivisions [Member]
Financial Assets:
AFS securities	17,694,000	26,777,000
Fair Value, Measurements, Recurring [Member] \| Mortgage-backed securities issued or guaranteed by U.S. government sponsored enterprises [Member]
Financial Assets:
AFS securities	419,046,000	381,308,000
Fair Value, Measurements, Recurring [Member] \| Collateralized mortgage obligations issued or guaranteed by U.S. government sponsored enterprises [Member]
Financial Assets:
AFS securities	306,857,000	343,897,000
Fair Value, Measurements, Recurring [Member] \| Corporate Bond Securities [Member]
Financial Assets:
AFS securities	996,000
Fair Value, Measurements, Recurring [Member] \| Equity Securities [Member]
Financial Assets:
AFS securities	705,000
Fair Value, Measurements, Recurring [Member] \| Private issue collateralized mortgage obligations [Member]
Financial Assets:
AFS securities		6,054,000
Readily Available Market Prices (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Held-for-sale, Fair Value Disclosure	0
Financial Assets:
AFS securities	0	0
Customer interest rate swaps	0	0
Financial Liabilities:
Customer interest rate swaps	0	0
Readily Available Market Prices (Level 1) [Member] \| Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Held-for-sale	0
Financial Liabilities:
Customer interest rate swaps		0
Readily Available Market Prices (Level 1) [Member] \| Fair Value, Measurements, Recurring [Member] \| Corporate Bond Securities [Member]
Financial Assets:
AFS securities	0
Readily Available Market Prices (Level 1) [Member] \| Fair Value, Measurements, Recurring [Member] \| Equity Securities [Member]
Financial Assets:
AFS securities	0
Observable Market Data (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Held-for-sale, Fair Value Disclosure	10,958,000
Financial Assets:
AFS securities	750,338,000	763,063,000
Customer interest rate swaps	3,166,000	1,140,000
Financial Liabilities:
Customer interest rate swaps	3,166,000	1,140,000
Observable Market Data (Level 2) [Member] \| Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Held-for-sale	10,958,000
Financial Assets:
Customer interest rate swaps	3,166,000	1,140,000
Financial Liabilities:
Interest rate swaps	9,229,000	9,143,000
Customer interest rate swaps		1,140,000
Observable Market Data (Level 2) [Member] \| Fair Value, Measurements, Recurring [Member] \| Obligations of U.S. government sponsored enterprises [Member]
Financial Assets:
AFS securities	5,040,000	5,027,000
Observable Market Data (Level 2) [Member] \| Fair Value, Measurements, Recurring [Member] \| Obligations of states and political subdivisions [Member]
Financial Assets:
AFS securities	17,694,000	26,777,000
Observable Market Data (Level 2) [Member] \| Fair Value, Measurements, Recurring [Member] \| Mortgage-backed securities issued or guaranteed by U.S. government sponsored enterprises [Member]
Financial Assets:
AFS securities	419,046,000	381,308,000
Observable Market Data (Level 2) [Member] \| Fair Value, Measurements, Recurring [Member] \| Collateralized mortgage obligations issued or guaranteed by U.S. government sponsored enterprises [Member]
Financial Assets:
AFS securities	306,857,000	343,897,000
Observable Market Data (Level 2) [Member] \| Fair Value, Measurements, Recurring [Member] \| Corporate Bond Securities [Member]
Financial Assets:
AFS securities	996,000
Observable Market Data (Level 2) [Member] \| Fair Value, Measurements, Recurring [Member] \| Equity Securities [Member]
Financial Assets:
AFS securities	705,000
Observable Market Data (Level 2) [Member] \| Fair Value, Measurements, Recurring [Member] \| Private issue collateralized mortgage obligations [Member]
Financial Assets:
AFS securities		6,054,000
Company Determined Fair Value (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Held-for-sale, Fair Value Disclosure	0
Financial Assets:
AFS securities	0	0
Customer interest rate swaps	0	0
Financial Liabilities:
Customer interest rate swaps	0	0
Company Determined Fair Value (Level 3) [Member] \| Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Held-for-sale	0
Financial Liabilities:
Customer interest rate swaps		$ 0
Company Determined Fair Value (Level 3) [Member] \| Fair Value, Measurements, Recurring [Member] \| Corporate Bond Securities [Member]
Financial Assets:
AFS securities	0
Company Determined Fair Value (Level 3) [Member] \| Fair Value, Measurements, Recurring [Member] \| Equity Securities [Member]
Financial Assets:
AFS securities	0
Forward-Starting Interest Rate Swap [Member]
Financial Liabilities:
Interest rate swaps	576,000
Forward-Starting Interest Rate Swap [Member] \| Fair Value, Measurements, Recurring [Member]
Financial Liabilities:
Interest rate swaps	576,000
Customer interest rate swaps	3,166,000
Forward-Starting Interest Rate Swap [Member] \| Readily Available Market Prices (Level 1) [Member]
Financial Liabilities:
Interest rate swaps	0
Forward-Starting Interest Rate Swap [Member] \| Readily Available Market Prices (Level 1) [Member] \| Fair Value, Measurements, Recurring [Member]
Financial Liabilities:
Customer interest rate swaps	0
Forward-Starting Interest Rate Swap [Member] \| Observable Market Data (Level 2) [Member]
Financial Liabilities:
Interest rate swaps	576,000
Forward-Starting Interest Rate Swap [Member] \| Observable Market Data (Level 2) [Member] \| Fair Value, Measurements, Recurring [Member]
Financial Liabilities:
Interest rate swaps	576,000
Customer interest rate swaps	3,166,000
Forward-Starting Interest Rate Swap [Member] \| Company Determined Fair Value (Level 3) [Member]
Financial Liabilities:
Interest rate swaps	0
Forward-Starting Interest Rate Swap [Member] \| Company Determined Fair Value (Level 3) [Member] \| Fair Value, Measurements, Recurring [Member]
Financial Liabilities:
Customer interest rate swaps	$ 0

Unpaid principal balance loans held for sale

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Unrealized gain (loss) on loans held for sale

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Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

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Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Fair value as of the balance sheet date of all derivative assets not designated as hedging instruments.

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Fair value as of the balance sheet date of all derivative liabilities not designated as hedging instruments.

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Fair value portion of loans held-for-sale including, but not limited to, mortgage loans and finance receivables.

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- Definition

The face amount of loans that will be sold to other entities.

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