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SECURITIES: (Tables)
 12 Months Ended
Dec. 31, 2012
Investments Debt and Equity Securities [Abstract]  
Amortized cost and fair value of investments classified as available-for-sale

The fair value of securities available-for-sale and related gross unrealized gains and losses recognized in accumulated other comprehensive income were as follows:

 

    December 31, 2012  
    Amortized     Unrealized        
(Dollar amounts in thousands)   Cost     Gains     Losses     Fair Value  
U.S. Government entity mortgage-backed securities   $ 1,807     $ 79     $ -     $ 1,886  
Mortgage-backed securities, residential     231,316       13,373       (13 )     244,676  
Mortgage-backed securities, commercial     5,146       1       (16 )     5,131  
Collateralized mortgage obligations     230,739       2,827       (246 )     233,320  
State and municipal obligations     187,044       12,518       (77 )     199,485  
Collateralized debt obligations     12,243       1,761       (7,882 )     6,122  
Equity Securities     320       60       -       380  
TOTAL   $ 668,615     $ 30,619     $ (8,234 )   $ 691,000  

 

    December 31, 2011  
    Amortized     Unrealized        
(Dollar amounts in thousands)   Cost     Gains     Losses     Fair Value  
U.S. Government entity mortgage-backed securities   $ 3,979     $ 34     $ -     $ 4,013  
Mortgage-backed securities, residential     296,646       15,142       -       311,788  
Mortgage-backed securities, commercial     98       3       -       101  
Collateralized mortgage obligations     144,850       3,097       -       147,947  
State and municipal obligations     183,854       11,738       (11 )     195,581  
Collateralized debt obligations     14,031       150       (9,410 )     4,771  
Equity Securities     1,596       490       -       2,086  
TOTAL   $ 645,054     $ 30,654     $ (9,421 )   $ 666,287  
Schedule Of Gross Gain Or Loss realised

Below is a summary of the gross gains and losses realized by the Corporation on investment sales during the years ended December 31, 2012, 2011 and 2010, respectively.

 

(Dollar amounts in thousands)   2012     2011     2010  
Proceeds   $ 25,812     $ 25     $ 12,248  
Gross gains     891       2       1,507  
Gross losses     (5 )     -       (213 )
Schedule of contractual maturities of debt securities

Contractual maturities of debt securities at year-end 2012 were as follows. Securities not due at a single maturity or with no maturity date, primarily mortgage-backed and equity securities, are shown separately.

 

    Available-for-Sale  
    Amortized     Fair  
(Dollar amounts in thousands)   Cost     Value  
Due in one year or less   $ 11,022     $ 11,205  
Due after one but within five years     37,097       38,879  
Due after five but within ten years     87,877       93,326  
Due after ten years     295,837       297,402  
      431,833       440,812  
Mortgage-backed securities and equities     236,782       250,188  
TOTAL   $ 668,615     $ 691,000  
Schedule of gross unrealized losses and fair value, aggregated by investment category and length of time that individual securities have been in continuous unrealized loss position

The following tables show the securities' gross unrealized losses and fair value, aggregated by investment category and length of time that individual securities have been in continuous unrealized loss position, at December 31, 2012 and 2011.

 

    December 31, 2012  
    Less Than 12 Months     More Than 12 Months     Total  
          Unrealized           Unrealized           Unrealized  
(Dollar amounts in thousands)   Fair Value     Losses     Fair Value     Losses     Fair Value     Losses  
Mortgage-backed securities, residential   $ 7,245     $ (13 )   $ -     $ -     $ 7,245     $ (13 )
Mortgage-backed securities, commercial     5,086       (16 )                     5,086       (16 )
Collateralized mortgage obligations     46,121       (246 )                     46,121       (246 )
State and municipal obligations     8,611       (77 )                     8,611       (77 )
Collateralized debt obligations     -       -       4,032       (7,882 )     4,032       (7,882 )
Total temporarily impaired securities   $ 67,063     $ (352 )   $ 4,032     $ (7,882 )   $ 71,095     $ (8,234 )

 

    December 31, 2011  
    Less Than 12 Months     More Than 12 Months     Total  
          Unrealized           Unrealized           Unrealized  
(Dollar amounts in thousands)   Fair Value     Losses     Fair Value     Losses     Fair Value     Losses  
State and municipal obligations   $ 1,110     $ (11 )   $ -     $ -     $ 1,110     $ (11 )
Collateralized debt obligations     -       -       3,603       (9,410 )     3,603       (9,410 )
Total temporarily impaired securities   $ 1,110     $ (11 )   $ 3,603     $ (9,410 )   $ 4,713     $ (9,421 )
Rollforward of the credit losses recognized in earnings

The table below presents a rollforward of the credit losses recognized in earnings for the year ended December 31, 2012:

 

(Dollar amounts in thousands)   2012     2011     2010  
Beginning balance, January 1,   $ 15,180     $ 15,070     $ 11,359  
Amounts related to credit loss for which other-than-                        
temporary impairment was not previously recognized     11       110       (549 )
Amounts realized for securities sold during the period     (208 )     -       -  
Reductions for increase in cash flows expected to be collected                        
that are recognized over the remaining life of the security     -       -       -  
Increases to the amount related to the credit loss for which other-                        
than-temporary impairment was previously recognized     -       -       4,260  
Ending balance, December 31,   $ 14,983     $ 15,180     $ 15,070