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INTERMITTENT SEVERANCE PLAN (Details) (Intermittent Severance Benefits, USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2013
Sep. 30, 2012
Intermittent Severance Benefits
       
Intermittent severance plan        
Service Cost $ 5 $ 4 $ 15 $ 12
Interest Cost 4 3 11 10
Net Periodic Intermittent Severance Cost $ 9 $ 7 $ 26 $ 22