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Stock Based Compensation (Tables)
 12 Months Ended
Dec. 31, 2013
Stock Based Compensation [Abstract]  
Assumptions used to estimate fair value of options granted
The following assumptions were used to estimate the fair value of options and stock appreciation rights granted during the years ended December 31, 2013, 2012 and 2011 using the Black-Scholes option pricing model:
 
   2013    2012    2011  
                
Expected dividend yield
  2.78 - 2.84 
%
  2.73 
%
  1.57 - 2.66 % 
Expected stock price volatility
  54.61 - 56.36 
%
  53.52 - 57.19 
%
  48.80 - 53.21 % 
Risk-free interest rate range
  1.26 - 1.68 
%
  1.24 - 1.33 
%
  1.33 - 2.84 % 
Weighted-average expected life
  6.47 - 7.59 
years
  6.21 - 7.70 
years
  6.28 - 7.63 years 
Forfeiture rate
  1.00 - 2.50 
%
  1.00 - 3.00 
%
  1.00 - 3.00 % 
Total fair value of grants
 $908    $727    $995  
Schedule of activities with respect to stock option
The following table summarizes the Company’s activities with respect to its stock options and stock appreciation rights for 2013, 2012 and 2011 (in thousands, except price per share and contractual term):
 
 
Number of
Shares
 
Weighted Average
Exercise Price
Per Share
 
Weighted Average
Remaining
Term
 
Aggregate
Intrinsic
Value
 
                 
Outstanding December 31, 2010
2,054
$
13.77
 
4.85
$
13,978
 
Granted
126
$
17.62
         
Exercised
(121)
$
9.27
         
Cancelled
(1)
$
8.90
         
Outstanding December 31, 2011
2,058
$
14.28
 
3.94
$
1,496
 
Granted
147
$
12.00
         
Exercised
(272)
$
9.39
         
Cancelled
(113)
$
9.98
         
Outstanding December 31, 2012
1,820
$
15.08
 
3.71
$
1,520
 
Granted
191
$
11.29
         
Exercised
(164)
$
10.18
         
Cancelled
(316)
$
16.51
         
Outstanding December 31, 2013
1,531
$
14.89
 
4.26
$
2,369
 
Vested at December 31, 2013
1,204
$
15.63
         
Exercisable at December 31, 2013
1,204
$
15.63
 
3.03
$
1,378
 
Schedule of information concerning outstanding and exercisable options
The following table summarizes information concerning outstanding and exercisable options and stock appreciation rights at December 31, 2013:
 
  
Outstanding
 
Exercisable
 
Range of
 exercise price
 
Number
outstanding
 
Weighted
average
 remaining
 contractual life
(years)
 
Weighted
 average
 exercise
 price
 
Number
exercisable
  
Weighted
 average
 exercise
price
 
                      
$6.20-$8.26 
116
 
5.3
 
$
6.96
 
    116
 
$
6.96
 
8.26-10.33 
53
 
9.3
 
$
10.02
 
    --
 
$
--
 
10.33-12.39 
255
 
8.7
 
$
11.58
 
    43
 
$
11.72
 
12.39-14.45 
353
 
1.8
 
$
13.86
 
    337
 
$
13.90
 
14.45-16.52 
165
 
5.2
 
$
15.82
 
    147
 
$
15.90
 
16.52-18.58 
213
 
4.3
 
$
18.09
 
    194
 
$
18.08
 
18.58-20.65 
361
 
2.0
 
$
18.93
 
    352
 
$
18.93
 
20.65-21.08 
15
 
5.8
 
$
21.04
 
    15
 
$
21.04
 
                      
  
1,531
         
    1,204
      
Summary of nonvested option activity
A summary of the Company’s nonvested option and stock appreciation rights activity for the years ended December 31, 2013, 2012 and 2011 is as follows (in thousands, except price per share and contractual term):

   
Number of
Shares
  
Weighted Average
Grant Date
Fair Value
Per Share
  
         
Nonvested at January 1, 2011
  320  $4.93  
Granted
  126  $7.90  
Vested
  (185) $4.95  
Nonvested at December 31, 2011
  261  $6.35  
Granted
  147  $4.95  
Vested
  (152) $5.36  
Forfeited
  (4) $5.60  
Nonvested at December 31, 2012
  252  $6.12  
Granted
  191  $4.75  
Vested
  (108) $6.60  
Forfeited
  (8) $7.82  
           
Nonvested at December 31, 2013
  327  $5.11  
Summary of restricted share activity
A summary of the restricted share and restricted stock unit activity for the years ended December 31, 2013, 2012 and 2011 is presented below:
 
   
Number of
Shares
  
Weighted Average
Grant Date
Fair Value
per share
  
         
Outstanding at January 1, 2011
  276  $10.90  
Granted
  126  $15.86  
Vested – restriction lapsed
  (59) $15.90  
Outstanding at December 31, 2011
  343  $11.86  
Granted
  149  $11.84  
Vested – restriction lapsed
  (136) $6.94  
Outstanding at December 31, 2012
  356  $13.72  
Granted
  145  $11.15  
Vested – restriction lapsed
  (81) $13.88  
Forfeited
  (30) $13.00  
           
Outstanding at December 31, 2013
  390  $12.81