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STOCK BASED COMPENSATION PLANS (Details 4) (Directors, Restricted stock units, USD $)
3 Months Ended 6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2013
Jun. 30, 2012
Directors | Restricted stock units
       
Deferred compensation plan        
Vesting period (in years)     1 year  
Compensation expenses $ 36,000 $ 40,000 $ 75,000 $ 79,000