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STOCK COMPENSATION PLANS (Tables)
3 Months Ended
Mar. 31, 2014
STOCK COMPENSATION PLANS [Abstract]  
Weighted-average assumptions used for grants option
The fair value of each option grant is estimated using the Black-Scholes-Merton option pricing model with the following weighted-average assumptions used for grants issued in 2013 and 2012.  All options were granted at market value with a 10-year option term with a vesting period of one year from the date of grant.

 
2013
 
2012
 
Expected Dividend Yield
3.63
%
4.18
%
Expected Stock Price Volatility
26.16
%
25.13
%
Weighted Average Risk-Free Interest Rate
1.68
%
1.87
%
Weighted Average Expected Life of Options (in years)
9.41
 
9.47
 

Shares of Class A Non-Voting Common Stock under option
The following summary reflects changes in the shares of Class A Stock underlying options:

 
 
Option Shares
  
Weighted Average Exercise Price
  
Weighted Average Remaining Life (Yrs.)
  
Aggregate Intrinsic Value (in thousands)
 
Plan options
 
  
  
  
 
Outstanding at January 1, 2014
  
387,000
  
$
18.96
  
   
1,542
 
Granted
  
   
  
   
 
Exercised
  
(23,125
)
  
16.13
  
   
144
 
Expired
  
   
  
   
 
Outstanding at March 31, 2014
  
363,875
  
$
19.14
   
4.51
  
$
1,213
 
 
                
Options exercisable at March 31, 2014
  
330,125
  
$
18.79
   
4.04
  
$
1,213
 


Non-vested shares of Class A Stock under option
The following summary reflects changes in the non-vested shares of Class A Stock underlying options:


Non-vested Shares
 
Option Shares
  
Weighted Average Grant – Date Fair Value Per Option
 
Non-vested at January 1, 2014
  
33,750
  
$
4.04
 
Granted
  
   
 
Vested
  
   
 
Canceled
  
   
 
Non-vested at March 31, 2014
  
33,750
  
$
4.04