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STOCK BASED COMPENSATION (Details 3) (USD $)
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares granted 0    
Weighted average grant date fair value of options granted (per share) $ 0.00 $ 6.58 $ 6.31
2/10/2011 [Member] | 2005 Plan [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares granted   40,000  
Weighted average grant date fair value of options granted (per share)   $ 6.81  
2/10/2011 [Member] | 2005 Plan [Member] | Stock options [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting period   3 years [1]  
Expected volatility   32.00%  
Expected life (years)   5 years 6 months  
Expected dividend yield   2.90%  
Risk free interest rate   2.57%  
2/17/2011 [Member] | 2005 Plan [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares granted   54,000  
Weighted average grant date fair value of options granted (per share)   $ 6.39  
2/17/2011 [Member] | 2005 Plan [Member] | Stock options [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting period   3 years [1]  
Expected volatility   32.00%  
Expected life (years)   5 years  
Expected dividend yield   2.89%  
Risk free interest rate   2.27%  
5/24/2011 [Member] | 2010 Plan [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares granted   7,000  
Weighted average grant date fair value of options granted (per share)   $ 6.72  
5/24/2011 [Member] | 2010 Plan [Member] | Stock options [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting period   20 months [1]  
Expected volatility   33.00%  
Expected life (years)   5 years  
Expected dividend yield   2.87%  
Risk free interest rate   1.81%  
5/25/2010 [Member] | 2010 Plan [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares granted     15,000
Weighted average grant date fair value of options granted (per share)     $ 6.31
5/25/2010 [Member] | 2010 Plan [Member] | Stock options [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting period     3 years [1]
Expected volatility     39.00%
Expected life (years)     5 years
Expected dividend yield     3.18%
Risk free interest rate     2.01%
[1] Vesting periods begin on the grant date unless otherwise noted.