FAIR VALUE MEASUREMENTS (Schedule of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis) (Details) (USD $)
In Thousands, unless otherwise specified

Jun. 30, 2013

Dec. 31, 2012

Jun. 30, 2012

Fair value of assets and liabilities measured on a recurring basis:

Asset, interest rate swap - loans

$ 21

$ 18

Available for sale securities, Estimated fair value

582,312

585,382

627,543

Liability, interest rate swap - loans

Recurring [Member]

Fair value of assets and liabilities measured on a recurring basis:

Asset, interest rate swap - loans

Liability, interest rate swap - loans

Cash flow hedge - trust - preferred

3,354

4,489

Quoted Prices in Active Markets for Identical Assets Level 1 [Member]

Fair value of assets and liabilities measured on a recurring basis:

Asset, interest rate swap - loans

Available for sale securities, Estimated fair value

Liability, interest rate swap - loans

Quoted Prices in Active Markets for Identical Assets Level 1 [Member] | Recurring [Member]

Fair value of assets and liabilities measured on a recurring basis:

Asset, interest rate swap - loans

Liability, interest rate swap - loans

Cash flow hedge - trust - preferred

Significant Other Observable Inputs Level 2 [Member]

Fair value of assets and liabilities measured on a recurring basis:

Asset, interest rate swap - loans

Available for sale securities, Estimated fair value

582,312

585,382

Liability, interest rate swap - loans

Significant Other Observable Inputs Level 2 [Member] | Recurring [Member]

Fair value of assets and liabilities measured on a recurring basis:

Asset, interest rate swap - loans

Liability, interest rate swap - loans

Cash flow hedge - trust - preferred

3,354

4,489

Significant Unobservable Inputs Level 3 [Member] | Recurring [Member]

Fair value of assets and liabilities measured on a recurring basis:

Asset, interest rate swap - loans

Liability, interest rate swap - loans

Cash flow hedge - trust - preferred

US Government Agencies Debt Securities [Member]

Fair value of assets and liabilities measured on a recurring basis:

Available for sale securities, Estimated fair value

2,798

2,849

US Government Agencies Debt Securities [Member] | Recurring [Member]

Fair value of assets and liabilities measured on a recurring basis:

Available for sale securities, Estimated fair value

2,798

2,849

US Government Agencies Debt Securities [Member] | Quoted Prices in Active Markets for Identical Assets Level 1 [Member] | Recurring [Member]

Fair value of assets and liabilities measured on a recurring basis:

Available for sale securities, Estimated fair value

US Government Agencies Debt Securities [Member] | Significant Other Observable Inputs Level 2 [Member] | Recurring [Member]

Fair value of assets and liabilities measured on a recurring basis:

Available for sale securities, Estimated fair value

2,798

2,849

US Government Agencies Debt Securities [Member] | Significant Unobservable Inputs Level 3 [Member] | Recurring [Member]

Fair value of assets and liabilities measured on a recurring basis:

Available for sale securities, Estimated fair value

Obligations of States and Political Subdivisions [Member]

Fair value of assets and liabilities measured on a recurring basis:

Available for sale securities, Estimated fair value

236,716

229,778

Obligations of States and Political Subdivisions [Member] | Recurring [Member]

Fair value of assets and liabilities measured on a recurring basis:

Available for sale securities, Estimated fair value

236,716

229,778

Obligations of States and Political Subdivisions [Member] | Quoted Prices in Active Markets for Identical Assets Level 1 [Member] | Recurring [Member]

Fair value of assets and liabilities measured on a recurring basis:

Available for sale securities, Estimated fair value

Obligations of States and Political Subdivisions [Member] | Significant Other Observable Inputs Level 2 [Member] | Recurring [Member]

Fair value of assets and liabilities measured on a recurring basis:

Available for sale securities, Estimated fair value

236,716

229,778

Obligations of States and Political Subdivisions [Member] | Significant Unobservable Inputs Level 3 [Member] | Recurring [Member]

Fair value of assets and liabilities measured on a recurring basis:

Available for sale securities, Estimated fair value

Corporate and Other Bonds [Member]

Fair value of assets and liabilities measured on a recurring basis:

Available for sale securities, Estimated fair value

5,626

7,212

Corporate and Other Bonds [Member] | Recurring [Member]

Fair value of assets and liabilities measured on a recurring basis:

Available for sale securities, Estimated fair value

5,626

7,212

Corporate and Other Bonds [Member] | Quoted Prices in Active Markets for Identical Assets Level 1 [Member] | Recurring [Member]

Fair value of assets and liabilities measured on a recurring basis:

Available for sale securities, Estimated fair value

Corporate and Other Bonds [Member] | Significant Other Observable Inputs Level 2 [Member] | Recurring [Member]

Fair value of assets and liabilities measured on a recurring basis:

Available for sale securities, Estimated fair value

5,626

7,212

Corporate and Other Bonds [Member] | Significant Unobservable Inputs Level 3 [Member] | Recurring [Member]

Fair value of assets and liabilities measured on a recurring basis:

Available for sale securities, Estimated fair value

Mortgage Backed Securities [Member]

Fair value of assets and liabilities measured on a recurring basis:

Available for sale securities, Estimated fair value

333,770

342,174

Mortgage Backed Securities [Member] | Recurring [Member]

Fair value of assets and liabilities measured on a recurring basis:

Available for sale securities, Estimated fair value

333,770

342,174

Mortgage Backed Securities [Member] | Quoted Prices in Active Markets for Identical Assets Level 1 [Member] | Recurring [Member]

Fair value of assets and liabilities measured on a recurring basis:

Available for sale securities, Estimated fair value

Mortgage Backed Securities [Member] | Significant Other Observable Inputs Level 2 [Member] | Recurring [Member]

Fair value of assets and liabilities measured on a recurring basis:

Available for sale securities, Estimated fair value

333,770

342,174

Mortgage Backed Securities [Member] | Significant Unobservable Inputs Level 3 [Member] | Recurring [Member]

Fair value of assets and liabilities measured on a recurring basis:

Available for sale securities, Estimated fair value

Other Securities [Member]

Fair value of assets and liabilities measured on a recurring basis:

Available for sale securities, Estimated fair value

3,402

3,369

Other Securities [Member] | Recurring [Member]

Fair value of assets and liabilities measured on a recurring basis:

Available for sale securities, Estimated fair value

3,402

3,369

Other Securities [Member] | Quoted Prices in Active Markets for Identical Assets Level 1 [Member] | Recurring [Member]

Fair value of assets and liabilities measured on a recurring basis:

Available for sale securities, Estimated fair value

Other Securities [Member] | Significant Other Observable Inputs Level 2 [Member] | Recurring [Member]

Fair value of assets and liabilities measured on a recurring basis:

Available for sale securities, Estimated fair value

3,402

3,369

Other Securities [Member] | Significant Unobservable Inputs Level 3 [Member] | Recurring [Member]

Fair value of assets and liabilities measured on a recurring basis:

Available for sale securities, Estimated fair value

- Definition

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents Available-for-sale Securities which consist of all investments in certain debt and equity securities neither classified as trading or held-to-maturity securities. A debt security represents a creditor relationship with an enterprise. Debt securities include, among other items, US Treasury securities, US government securities, municipal securities, corporate bonds, convertible debt, commercial paper, and all securitized debt instruments. An equity security represents an ownership interest in an enterprise or the right to acquire or dispose of an ownership interest in an enterprise at fixed or determinable prices. Equity securities include, among other things, common stock, certain preferred stock, warrant rights, call options, and put options, but do not include convertible debt. An entity may opt to provide the reader with additional narrative text to better understand the nature of investments in debt and equity securities which are categorized as Available-for-sale.

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