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INCOME TAXES Table 1 - Components of Income Tax Expense (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Current:      
U.S. $ 3,117 $ 2,280 $ 908
Foreign 6,335 6,329 9,820
Foreign withholding tax 479 3,833 1,926
Total current 9,931 12,442 12,654
Deferred:      
U.S. 1,468 2,680 1,022
Foreign (1,065) (1,122) (1,464)
Foreign withholding tax expense (benefit) (397) (2,027) 2,500
Total deferred 6 (469) 2,058
Total income tax expense $ 9,937 $ 11,973 $ 14,712