Annual report pursuant to Section 13 and 15(d)

Fair Value Measurements (Details)

v2.4.0.6
Fair Value Measurements (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2012
Dec. 31, 2011
Fair value of assets and liabilities measured on a recurring basis:    
Interest rate swap - loans $ 18 $ 66
Total securities available for sale, Estimated Fair Value 585,382 620,166
Recurring [Member]
   
Fair value of assets and liabilities measured on a recurring basis:    
Interest rate swap - loans 18 66
Interest rate swap - loans 18 66
Cash flow hedge - trust 4,489 4,293
Quoted Prices in Active Markets for Identical Assets Level 1 [Member] | Recurring [Member]
   
Fair value of assets and liabilities measured on a recurring basis:    
Interest rate swap - loans      
Interest rate swap - loans      
Cash flow hedge - trust      
Significant Other Observable Inputs Level 2 [Member]
   
Fair value of assets and liabilities measured on a recurring basis:    
Interest rate swap - loans 18 66
Total securities available for sale, Estimated Fair Value 585,382 620,166
Significant Other Observable Inputs Level 2 [Member] | Recurring [Member]
   
Fair value of assets and liabilities measured on a recurring basis:    
Interest rate swap - loans 18 66
Interest rate swap - loans 18 66
Cash flow hedge - trust 4,489 4,293
Significant Unobservable Inputs Level 3 [Member] | Recurring [Member]
   
Fair value of assets and liabilities measured on a recurring basis:    
Interest rate swap - loans      
Interest rate swap - loans      
Cash flow hedge - trust      
U.S. government and agency securities [Member]
   
Fair value of assets and liabilities measured on a recurring basis:    
Total securities available for sale, Estimated Fair Value 2,849 4,284
U.S. government and agency securities [Member] | Recurring [Member]
   
Fair value of assets and liabilities measured on a recurring basis:    
Total securities available for sale, Estimated Fair Value 2,849 4,284
U.S. government and agency 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:    
Total securities available for sale, Estimated Fair Value      
U.S. government and agency securities [Member] | Significant Other Observable Inputs Level 2 [Member] | Recurring [Member]
   
Fair value of assets and liabilities measured on a recurring basis:    
Total securities available for sale, Estimated Fair Value 2,849 4,284
U.S. government and agency securities [Member] | Significant Unobservable Inputs Level 3 [Member] | Recurring [Member]
   
Fair value of assets and liabilities measured on a recurring basis:    
Total securities available for sale, Estimated Fair Value      
Obligations of states and political subdivisions [Member]
   
Fair value of assets and liabilities measured on a recurring basis:    
Total securities available for sale, Estimated Fair Value 229,778 200,207
Obligations of states and political subdivisions [Member] | Recurring [Member]
   
Fair value of assets and liabilities measured on a recurring basis:    
Total securities available for sale, Estimated Fair Value 229,778 200,207
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:    
Total securities available for sale, 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:    
Total securities available for sale, Estimated Fair Value 229,778 200,207
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:    
Total securities available for sale, Estimated Fair Value      
Corporate and other bonds [Member]
   
Fair value of assets and liabilities measured on a recurring basis:    
Total securities available for sale, Estimated Fair Value 7,212 12,240
Corporate and other bonds [Member] | Recurring [Member]
   
Fair value of assets and liabilities measured on a recurring basis:    
Total securities available for sale, Estimated Fair Value 7,212 12,240
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:    
Total securities available for sale, 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:    
Total securities available for sale, Estimated Fair Value 7,212 12,240
Corporate and other bonds [Member] | Significant Unobservable Inputs Level 3 [Member] | Recurring [Member]
   
Fair value of assets and liabilities measured on a recurring basis:    
Total securities available for sale, Estimated Fair Value      
Mortgage-backed securities [Member]
   
Fair value of assets and liabilities measured on a recurring basis:    
Total securities available for sale, Estimated Fair Value 342,174 400,318
Mortgage-backed securities [Member] | Recurring [Member]
   
Fair value of assets and liabilities measured on a recurring basis:    
Total securities available for sale, Estimated Fair Value 342,174 400,318
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:    
Total securities available for sale, 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:    
Total securities available for sale, Estimated Fair Value 342,174 400,318
Mortgage-backed securities [Member] | Significant Unobservable Inputs Level 3 [Member] | Recurring [Member]
   
Fair value of assets and liabilities measured on a recurring basis:    
Total securities available for sale, Estimated Fair Value      
Other securities [Member]
   
Fair value of assets and liabilities measured on a recurring basis:    
Total securities available for sale, Estimated Fair Value 3,369 3,117
Other securities [Member] | Recurring [Member]
   
Fair value of assets and liabilities measured on a recurring basis:    
Total securities available for sale, Estimated Fair Value 3,369 3,117
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:    
Total securities available for sale, 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:    
Total securities available for sale, Estimated Fair Value 3,369 3,117
Other securities [Member] | Significant Unobservable Inputs Level 3 [Member] | Recurring [Member]
   
Fair value of assets and liabilities measured on a recurring basis:    
Total securities available for sale, Estimated Fair Value