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FAIR VALUE MEASUREMENTS (Schedule of Change of Fair Value Measurements that are Categorized Within Level 3) (Details)
$ in Thousands
6 Months Ended
Jun. 30, 2017
USD ($)
Change of fair value measurements that are categorized within Level 3  
Total fair value as of January 1, 2017 $ 783
Cash Settlements (271)
Changes in fair value recognized in expenses (212)
Total fair value as of June 30, 2017 (unaudited) $ 300