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STOCK-BASED COMPENSATION (Tables)
12 Months Ended
Dec. 31, 2012
STOCK-BASED COMPENSATION [Abstract]  
Assumptions utilized in determining values
Fair Value of Stock Option Awards. The grant date fair value of option awards was estimated on the date of grant using the Black-Scholes option pricing model. The fair values of awards made in 2011 and 2010, as well as the assumptions utilized in determining such values, is presented below. There were no stock options granted by the Corporation's Board of Directors during 2012.
 
 
   
2011
  
2010
 
Grant date fair value
  $10.30   $9.13 
Expected volatility
  45.83%  47.68%
Expected dividends
  3.03%  3.19%
Expected term (in years)
  7.16   6.82 
Risk-free interest rate
  1.93%  2.34%
Summary of options outstanding
Stock Option Activity. The following table presents a summary of options outstanding under the Corporation's stock-based compensation plans as of December 31, 2012 and changes during the year then ended.
 
   
Number of
Options
  
Weighted-
Average
Exercise
Price
  
Weighted-
Average
Remaining
Contractual
Term (yrs.)
  
Aggregate
Intrinsic
Value
(in thousands)
 
Outstanding at January 1, 2012
  449,504   $22.31       
Exercised
  (129,285)  20.14       
Forfeited or expired
  (16,158)  21.20       
Outstanding at December 31, 2012
  304,061   $23.29   4.99  $1,563 
Exercisable at December 31, 2012
  199,901   $22.31   3.95  $1,209 
Summary of status of non-vested shares and changes during the year
Restricted Stock Activity. On January 24, 2012, the Corporation's Board of Directors granted 29,824 RSUs under the 2006 Plan. The Corporation's financial performance for 2014 will determine the number of shares of common stock, if any, into which the RSUs will ultimately be converted. In the table that follows, the number of RSUs granted represents the maximum number of shares into which the RSUs can be converted. A summary of the status of the Corporation's non-vested shares as of December 31, 2012, and changes during the year then ended is presented below.
 
      
Weighted-
 
      
Average
 
   
Number of
  
Grant-Date
 
   
Shares
  
Fair Value
 
Nonvested at January 1, 2012
  30,023   $24.62 
Granted
  29,824   24.23 
Vested
  (10,968)  22.69 
Forfeited
  (3,435)  22.69 
Nonvested at December 31, 2012
  45,444   $24.98