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SHAREHOLDERS' EQUITY (Tables)
 12 Months Ended
Dec. 31, 2014
SHAREHOLDERS' EQUITY [Abstract]  
Options Valuation Assumptions
The Company uses the Black-Scholes pricing model to estimate the fair value of each option granted with the following weighted average assumptions:

  
For years ended December 31,
 
Valuation Assumptions
 
2012
  
2013
  
2014
 
       
Expected life (1)
  
5.1
   
5.0
   
4.5
 
Risk-free interest rate (2)
  
0.88
%
  
0.90
%
  
1.45
%
Expected volatility (3)
  
50
%
  
50
%
  
35
%
Expected dividend yield
  
4.91
%
  
5.05
%
  
6.05
%
Expected forfeiture (4)
  
1.26
%
  
17.77
%
  
18.32
%
Summary of Option Activity
A summary of stock option activity as of December 31, 2012, 2013 and 2014, and changes during the years then ended, are presented below:

  
Number of Options/ Warrants
  
Weighted-Average
Exercise
Price
  
Range of Exercise Prices
  
Weighted-Average Remaining Contractual Term (years)
  
Aggregate Intrinsic Value (thousands)
 
Balance at December 31, 2011
  
410,689
  
$
18.41
  
$
10.20 - $21.85
   
4
  
$
219
 
Granted
  
132,000
  
$
17.97
  
$
16.50 - $18.39
         
Exercised
  
(34,422
)
 
$
14.35
  
$
10.20 - $17.61
         
Canceled
  
(30,500
)
 
$
17.61
  
$
17.61 - $17.61
         
                     
Balance at December 31, 2012
  
477,767
  
$
18.63
  
$
10.75 - $21.85
   
4.3
  
$
223
 
Granted
  
89,000
  
$
17.41
  
$
17.25 - $18.95
         
Exercised
  
(53,501
)
 
$
18.27
  
$
10.75 - $20.02
         
Canceled
  
(30,433
)
 
$
18.00
  
$
15.22 - $20.02
         
                     
Balance at December 31, 2013
  
482,833
  
$
18.48
  
$
10.75 - $21.85
   
3.9
  
$
214
 
Granted
  
210,000
  
$
14.75
  
$
12.55 - $17.80
         
Exercised
  
(10,000
)
 
$
10.75
  
$
10.75 - $10.75
         
Canceled
  
(96,000
)
 
$
18.30
  
$
16.50 - $21.85
         
                     
Balance at December 31, 2014
  
586,833
  
$
17.36
  
$
11.50 - $21.00
   
4.2
  
$
197
 
                     
Exercisable at December 31, 2012
  
224,437
  
$
19.21
  
$
10.75 - $21.85
   
3.1
  
$
126
 
                     
Exercisable at December 31, 2013
  
276,169
  
$
18.95
  
$
10.75 - $21.85
   
2.9
  
$
152
 
                     
Exercisable at December 31, 2014
  
322,834
  
$
18.89
  
$
11.50 - $21.00
   
2.4
  
$
23
 
Stock Option Plans, by Exercise Price Range
The following table summarizes information about the options outstanding at December 31, 2014:

   
Options Outstanding
  
Options Exercisable
 
 
Range of Exercise Prices
  
Number of Options Outstanding at December 31, 2014
  
Weighted Average Remaining Contractual Life
  
Weighted Average Exercise Price
  
Number of Options Exercisable at December 31, 2014
  
Weighted Average Exercise Price
 
            
 
$
10.93 — 13.11
   
77,667
   
6.4
  
$
12.46
   
6,667
  
$
11.50
 
  
13.12 — 15.29
   
21,000
   
0.1
   
15.22
   
21,000
   
15.22
 
  
15.30 — 17.48
   
176,000
   
5.9
   
16.11
   
33,001
   
16.53
 
  
17.49 — 19.66
   
129,000
   
4.6
   
18.25
   
79,000
   
18.34
 
  
19.67 — 21.85
   
183,166
   
1.9
   
20.24
   
183,166
   
20.24
 
                        
 
$
10.93 — 21.85
   
586,833
   
4.2
  
$
17.36
   
322,834
  
$
18.89