FAIR VALUE MEASUREMENTS (Schedule of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Fair value of assets and liabilities measured on a recurring basis:
Asset, interest rate swap - loans	$ 33	$ 18
Available for sale securities, Estimated fair value	677,348	585,382
Liability, interest rate swap - loans	33	18
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
Significant Other Observable Inputs Level 2 [Member]
Fair value of assets and liabilities measured on a recurring basis:
Asset, interest rate swap - loans	33	18
Available for sale securities, Estimated fair value	677,348	585,382
Liability, interest rate swap - loans	33	18
Significant Unobservable Inputs Level 3 [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
Recurring [Member]
Fair value of assets and liabilities measured on a recurring basis:
Asset, interest rate swap - loans	33	18
Liability, interest rate swap - loans	33	18
Recurring [Member] | 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
Liability, interest rate swap - loans
Recurring [Member] | Significant Other Observable Inputs Level 2 [Member]
Fair value of assets and liabilities measured on a recurring basis:
Asset, interest rate swap - loans	33	18
Liability, interest rate swap - loans	33	18
Recurring [Member] | Significant Unobservable Inputs Level 3 [Member]
Fair value of assets and liabilities measured on a recurring basis:
Asset, interest rate swap - loans
Liability, interest rate swap - loans
US Government Agencies Debt Securities [Member]
Fair value of assets and liabilities measured on a recurring basis:
Available for sale securities, Estimated fair value	2,153	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	2,153	2,849
US Government Agencies Debt Securities [Member] | Recurring [Member] | Quoted Prices in Active Markets for Identical Assets Level 1 [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] | Recurring [Member] | Significant Other Observable Inputs Level 2 [Member]
Fair value of assets and liabilities measured on a recurring basis:
Available for sale securities, Estimated fair value	2,153	2,849
US Government Agencies Debt Securities [Member] | Recurring [Member] | Significant Unobservable Inputs Level 3 [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	254,830	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	254,830	229,778
Obligations of States and Political Subdivisions [Member] | Recurring [Member] | Quoted Prices in Active Markets for Identical Assets Level 1 [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] | Recurring [Member] | Significant Other Observable Inputs Level 2 [Member]
Fair value of assets and liabilities measured on a recurring basis:
Available for sale securities, Estimated fair value	254,830	229,778
Obligations of States and Political Subdivisions [Member] | Recurring [Member] | Significant Unobservable Inputs Level 3 [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	9,434	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	9,434	7,212
Corporate and Other Bonds [Member] | Recurring [Member] | Quoted Prices in Active Markets for Identical Assets Level 1 [Member]
Fair value of assets and liabilities measured on a recurring basis:
Available for sale securities, Estimated fair value
Corporate and Other Bonds [Member] | Recurring [Member] | Significant Other Observable Inputs Level 2 [Member]
Fair value of assets and liabilities measured on a recurring basis:
Available for sale securities, Estimated fair value	9,434	7,212
Corporate and Other Bonds [Member] | Recurring [Member] | Significant Unobservable Inputs Level 3 [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	407,362	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	407,362	342,174
Mortgage Backed Securities [Member] | Recurring [Member] | Quoted Prices in Active Markets for Identical Assets Level 1 [Member]
Fair value of assets and liabilities measured on a recurring basis:
Available for sale securities, Estimated fair value
Mortgage Backed Securities [Member] | Recurring [Member] | Significant Other Observable Inputs Level 2 [Member]
Fair value of assets and liabilities measured on a recurring basis:
Available for sale securities, Estimated fair value	407,362	342,174
Mortgage Backed Securities [Member] | Recurring [Member] | Significant Unobservable Inputs Level 3 [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	3,569	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	3,569	3,369
Other Securities [Member] | Recurring [Member] | Quoted Prices in Active Markets for Identical Assets Level 1 [Member]
Fair value of assets and liabilities measured on a recurring basis:
Available for sale securities, Estimated fair value
Other Securities [Member] | Recurring [Member] | Significant Other Observable Inputs Level 2 [Member]
Fair value of assets and liabilities measured on a recurring basis:
Available for sale securities, Estimated fair value	3,569	3,369
Other Securities [Member] | Recurring [Member] | Significant Unobservable Inputs Level 3 [Member]
Fair value of assets and liabilities measured on a recurring basis:
Available for sale securities, Estimated fair value
Trust Swaps [Member] | Recurring [Member]
Fair value of assets and liabilities measured on a recurring basis:
Cash flow hedge	3,046	4,489
Trust Swaps [Member] | Recurring [Member] | Quoted Prices in Active Markets for Identical Assets Level 1 [Member]
Fair value of assets and liabilities measured on a recurring basis:
Cash flow hedge
Trust Swaps [Member] | Recurring [Member] | Significant Other Observable Inputs Level 2 [Member]
Fair value of assets and liabilities measured on a recurring basis:
Cash flow hedge	3,046	4,489
Trust Swaps [Member] | Recurring [Member] | Significant Unobservable Inputs Level 3 [Member]
Fair value of assets and liabilities measured on a recurring basis:
Cash flow hedge
Prime Loan Swaps [Member] | Recurring [Member]
Fair value of assets and liabilities measured on a recurring basis:
Cash flow hedge	516
Prime Loan Swaps [Member] | Recurring [Member] | Quoted Prices in Active Markets for Identical Assets Level 1 [Member]
Fair value of assets and liabilities measured on a recurring basis:
Cash flow hedge
Prime Loan Swaps [Member] | Recurring [Member] | Significant Other Observable Inputs Level 2 [Member]
Fair value of assets and liabilities measured on a recurring basis:
Cash flow hedge	516
Prime Loan Swaps [Member] | Recurring [Member] | Significant Unobservable Inputs Level 3 [Member]
Fair value of assets and liabilities measured on a recurring basis:
Cash flow hedge