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INCOME TAXES (Schedule of United States and foreign Income (Loss) Before Income Taxes and Non-Controlling Interest) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
United States and foreign income (loss) before income taxes and non-controlling interest      
United States $ 13,381 $ (29,673) $ 7,905
Foreign (8,939) 37,917 (6,985)
Income before income taxes 4,442 $ 8,244 $ 920
CAYMAN ISLANDS      
INCOME TAXES      
Withholding tax $ 0