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INCOME TAXES (Details 3) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Unrealized gains recognized in comprehensive income $ 530 $ (404)  
Pension obligation of the defined benefit plan not yet recognized in income (197) 942 $ (1,340)
Deferred provision for income taxes (888) (562) $ (2,150)
Net decrease $ (555) $ (24)