Quarterly report pursuant to Section 13 or 15(d)

FAIR VALUE MEASUREMENTS (Schedule of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis) (Details)

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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 21 18  
Recurring [Member]
     
Fair value of assets and liabilities measured on a recurring basis:      
Asset, interest rate swap - loans 21 18  
Liability, interest rate swap - loans 21 18  
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 21 18  
Available for sale securities, Estimated fair value 582,312 585,382  
Liability, interest rate swap - loans 21 18  
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 21 18  
Liability, interest rate swap - loans 21 18  
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