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Securities (Tables)
 12 Months Ended
Dec. 31, 2012
Securities [Abstract]  
Amortized cost, estimated fair value, and unrealized gains and losses of securities available for sale
The amortized cost, estimated fair value, and unrealized gains and losses of securities available for sale are as follows:
 
(In thousands)
 
Amortized cost
  
Unrealized gains
  
Unrealized losses
  
Estimated fair value
 
December 31, 2012
            
U.S. Treasury
 $63,668  $757  $-  $64,425 
Federal Agency
  281,398   1,507   91   282,814 
State & municipal
  82,675   4,127   -   86,802 
Mortgage-backed
  237,461   12,820   -   250,281 
Collateralized mortgage obligations
  443,972   5,751   -   449,723 
Corporate
  -   -   -   - 
Other securities
  11,210   2,832   88   13,954 
Total securities available for sale
 $1,120,384  $27,794  $179  $1,147,999 
December 31, 2011
                
U.S. Treasury
 $81,006  $1,228  $-  $82,234 
Federal Agency
  254,983   879   16   255,846 
State & municipal
  99,176   5,624   11   104,789 
Mortgage-backed
  310,767   14,629   -   325,396 
Collateralized mortgage obligations
  459,067   6,458   51   465,474 
Corporate
  -   -   -   - 
Other securities
  8,935   2,021   76   10,880 
Total securities available for sale
 $1,213,934  $30,839  $154  $1,244,619 
Schedule of sales transactions of securities available for sale
The following table sets forth information with regard to sales transactions of securities available for sale:
 
   
Years ended December 31
 
(In thousands)
 
2012
  
2011
  
2010
 
Proceeds from sales
 $1,790  $2,437  $103,253 
Gross realized gains
 $442  $7  $3,170 
Gross realized losses
  -   (165)  (25)
Net securities gains (losses)
 $442  $(158) $3,145 
Amortized cost, estimated fair value, and unrealized gains and losses of securities held to maturity
The amortized cost, estimated fair value, and unrealized gains and losses of securities held to maturity are as follows:
 
   
Amortized
  
Unrealized
  
Unrealized
  
Estimated
 
(In thousands)
 
cost
  
gains
  
losses
  
fair value
 
December 31, 2012
            
Mortgage-backed
 $1,168  $184  $-  $1,352 
State & municipal
  59,395   788   -   60,183 
Total securities held to maturity
 $60,563  $972  $-  $61,535 
December 31, 2011
                
Mortgage-backed
 $1,447  $213  $-  $1,660 
State & municipal
  69,364   1,174   -   70,538 
Total securities held to maturity
 $70,811  $1,387  $-  $72,198 
Investment securities with unrealized losses
The following table sets forth information with regard to investment securities with unrealized losses at December 31, 2012 and 2011, segregated according to the length of time the securities had been in a continuous unrealized loss position:
 
   
Less than 12 months
  
12 months or longer
  
Total
 
Security Type:
 
Fair
Value
  
Unrealized
losses
  
Number
of
Positions
  
Fair
Value
  
Unrealized
losses
  
Number
of
Positions
  
Fair
Value
  
Unrealized
losses
  
Number
of
Positions
 
                             
December 31, 2012
                           
U.S. Treasury
 $-  $-   -  $-  $-   -  $-  $-   - 
Federal agency
  39,906   (91)  4   -   -   -   39,906   (91)  4 
State & municipal
  -   -   -   -   -   -   -   -   - 
Mortgage-backed
  -   -   -   -   -   -   -   -   - 
Collateralized mortgage obligations
  23   -   2   -   -   -   23   -   2 
Other securities
  468   (6)  1   167   (82)  1   635   (88)  2 
Total securities with unrealized losses
 $40,397  $(97)  7  $167  $(82)  1  $40,564  $(179)  8 
                                      
December 31, 2011
                                    
U.S. Treasury
 $-  $-   -  $-  $-   -  $-  $-   - 
Federal agency
  34,996   (16)  3   -   -   -   34,996   (16)  3 
State & municipal
  957   (10)  3   377   (1)  2   1,334   (11)  5 
Mortgage-backed
  -   -   -   -   -   -   -   -   - 
Collateralized mortgage obligations
  27,368   (51)  3   -   -   -   27,368   (51)  3 
Other securities
  645   (76)  2   -   -   -   645   (76)  2 
Total securities with unrealized losses
 $63,966  $(153)  11  $377  $(1)  2  $64,343  $(154)  13 
Contractual maturities of debt securities
The following tables set forth information with regard to contractual maturities of debt securities at December 31, 2012:
 
(In thousands)
 
Amortized
cost
  
Estimated
fair value
 
Debt securities classified as available for sale
      
Within one year
 $26,678  $26,788 
From one to five years
  193,142   195,953 
From five to ten years
  311,575   319,229 
After ten years
  577,779   592,075 
   $1,109,174  $1,134,045 
Debt securities classified as held to maturity
        
Within one year
 $25,184  $25,258 
From one to five years
  27,413   28,118 
From five to ten years
  5,425   5,434 
After ten years
  2,541   2,725 
   $60,563  $61,535