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EMPLOYEE BENEFIT PLANS (Details 5) (Pension Plan, USD $)
12 Months Ended
Dec. 31, 2012
Pension Plan
 
Employee Benefit Plans  
2013 $ 1,814,000
2014 2,046,000
2015 2,341,000
2016 2,641,000
2017 2,967,000
2018-2022 21,171,000
Estimated future benefit payments 32,980,000
Expected contribution for pension plan in 2013 2,400,000
Estimated net actuarial loss for pension plan amortized from accumulated other comprehensive income into net periodic benefit cost in 2013 $ 2,200,000