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Securities (Tables)
3 Months Ended
Mar. 31, 2013
Securities [Abstract]  
Fair value of securities
                                 
March 31, 2013   Amortized
Cost
    Gross
Unrealized
Gains
    Gross
Unrealized
Losses
    Fair
Value
 

Available for sale

                               

U.S. Treasury and federal agencies

  $ 45,974     $ 281     $ (38   $ 46,217  

State and municipal

    160,824       9,864       (199     170,489  

Federal agency collateralized mortgage obligations

    109,727       1,591       (83     111,235  

Federal agency mortgage-backed pools

    144,300       5,956       (26     150,230  

Private labeled mortgage-backed pools

    1,695       61       —         1,756  

Corporate notes

    32       17       —         49  
   

 

 

   

 

 

   

 

 

   

 

 

 

Total available for sale investment securities

  $ 462,552     $ 17,770     $ (346   $ 479,976  
   

 

 

   

 

 

   

 

 

   

 

 

 

Held to maturity, State and Municipal

  $ 2,110     $ —       $ —       $ 2,110  
   

 

 

   

 

 

   

 

 

   

 

 

 
         
December 31, 2012   Amortized
Cost
    Gross
Unrealized
Gains
    Gross
Unrealized
Losses
    Fair
Value
 

Available for sale

                               

U.S. Treasury and federal agencies

  $ 51,458     $ 351     $ (30   $ 51,779  

State and municipal

    162,147       10,842       (84     172,905  

Federal agency collateralized mortgage obligations

    95,337       1,533       (39     96,831  

Federal agency mortgage-backed pools

    152,372       6,847       (15     159,204  

Private labeled mortgage-backed pools

    1,960       71       —         2,031  

Corporate notes

    32       19       —         51  
   

 

 

   

 

 

   

 

 

   

 

 

 

Total available for sale investment securities

  $ 463,306     $ 19,663     $ (168   $ 482,801  
   

 

 

   

 

 

   

 

 

   

 

 

 
Amortized cost and fair value of securities available for sale and held to maturity
                                 
    March 31, 2013     December 31, 2012  
    Amortized
Cost
    Fair
Value
    Amortized
Cost
    Fair
Value
 

Available for sale

                               

Within one year

  $ 4,102     $ 4,116     $ 4,358     $ 4,368  

One to five years

    53,522       54,656       49,415       50,673  

Five to ten years

    91,240       96,738       98,551       104,258  

After ten years

    57,966       61,245       61,313       65,436  
   

 

 

   

 

 

   

 

 

   

 

 

 
      206,830       216,755       213,637       224,735  

Federal agency collateralized mortgage obligations

    109,727       111,235       95,337       96,831  

Federal agency mortgage-backed pools

    144,300       150,230       152,372       159,204  

Private labeled mortgage-backed pools

    1,695       1,756       1,960       2,031  
   

 

 

   

 

 

   

 

 

   

 

 

 

Total available for sale investment securities

  $ 462,552     $ 479,976     $ 463,306     $ 482,801  
   

 

 

   

 

 

   

 

 

   

 

 

 

Held to maturity

                               

Within one year

  $ 2,110     $ 2,110     $ —       $ —    

One to five years

    —         —         —         —    
   

 

 

   

 

 

   

 

 

   

 

 

 

Total held to maturity investment securities

  $ 2,110     $ 2,110     $ —       $ —    
   

 

 

   

 

 

   

 

 

   

 

 

 
Gross unrealized losses and the fair value of the Company's investments
                                                 
    Less than 12 Months     12 Months or More     Total  

March 31, 2013

  Fair
Value
    Unrealized
Losses
    Fair
Value
    Unrealized
Losses
    Fair
Value
    Unrealized
Losses
 

U.S. Treasury and federal agencies

  $ 15,552     $ (38   $ —       $ —       $ 15,552     $ (38

State and municipal

    16,027       (199     —         —         16,027       (199

Federal agency collateralized mortgage obligations

    31,845       (83     —         —         31,845       (83

Federal agency mortgage-backed pools

    15,241       (26     —         —         15,241       (26
   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Total temporarily impaired securities

  $ 78,665     $ (346   $ —       $ —       $ 78,665     $ (346
   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 
       
     Less than 12 Months     12 Months or More     Total  

December 31, 2012

  Fair
Value
    Unrealized
Losses
    Fair
Value
    Unrealized
Losses
    Fair
Value
    Unrealized
Losses
 

U.S. Treasury and federal agencies

  $ 13,064     $ (30   $ —       $ —       $ 13,064     $ (30

State and municipal

    11,928       (84     —         —         11,928       (84

Federal agency collateralized mortgage obligations

    12,719       (39     —         —         12,719       (39

Federal agency mortgage-backed pools

    4,126       (15     —         —         4,126       (15
   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Total temporarily impaired securities

  $ 41,837     $ (168   $ —       $ —       $ 41,837     $ (168
   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 
Sales of securities available for sale
                 
    Three months ended March 31  
    2013     2012  

Sales of securities available for sale (Unaudited)

               

Proceeds

  $ 23,485     $ —    

Gross gains

    376       —    

Gross losses

    (8     —