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Stock-Based Compensation (Tables)
9 Months Ended
Sep. 30, 2013
Stock-Based Compensation [Abstract]  
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions
The fair value of share-based payment awards was estimated using the Black-Scholes option pricing model with the following assumptions and weighted average fair values at the time the grants were awarded:
 
 
 
Nine Months Ended
 
 
 
 
September 30,
 
 
 
 
2013
 
 
2012
 
 
Weighted average fair value of grants
 
$
3.34
 
 
$
2.03
 
 
Risk-free interest rate
 
 
1.97
%
 
 
2.03
%
 
Dividend yield
 
 
1.32
%
 
 
1.24
%
 
Expected volatility
 
 
25.84
%
 
 
22.04
%
 
Expected life in months
 
 
74
 
 
 
68
 
 
Disclosure of Share-based Compensation Arrangements by Share-based Payment Award
Activity under the stock-based compensation plans as of September 30, 2013 and changes during the nine months ended September 30, 2013 were as follows:
 
 
 
 
 
 
 
 
Weighted-
 
 
 
 
 
 
 
 
Weighted-
 
Average
 
 
 
 
 
 
 
 
Average
 
Remaining
 
Aggregate
 
 
 
 
 
Exercise
 
Contractual
 
Intrinsic
 
 
 
Shares
 
Price
 
Term (Years)
 
Value
 
Outstanding at December 31, 2012
 
183,574
 
$
9.92
 
 
 
 
 
 
Granted – options
 
41,639
 
 
12.95
 
 
 
 
 
 
Exercised
 
(2,268)
 
 
9.14
 
 
 
 
 
 
Canceled/expired
 
(25,883)
 
 
10.88
 
 
 
 
 
 
Forfeited
 
(8,682)
 
 
10.58
 
 
 
 
 
 
Outstanding at September 30, 2013
 
188,380
 
 
10.55
 
6.25
 
$
705,001
 
Exercisable at September 30, 2013
 
119,827
 
$
10.06
 
4.74
 
$
510,991