INCOME TAXES (Details 4)	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Reconciliation of Income Tax Provision to the Luxembourg income tax rate
Statutory tax rate	26.01%	27.08%	29.22%
Change in valuation allowance	43.08%	119.20%	(0.08%)
State tax expense	28.58%	0.50%	2.30%
Tax credits	(0.00%)	(2.13%)	(1.81%)
Uncertain tax positions	114.18%	30.16%	(3.65%)
Unrecognized tax loss	0.00%	(1008.20%)	0.00%
Income tax rate change	0.00%	57.36%	0.00%
Tax rate differences on foreign earnings	73.11%	0.00%	0.00%
Other	7.96%	(4.91%)	3.20%
Effective tax rate	292.92%	(780.94%)	29.18%

Effective Income Tax Rate Reconciliation, Uncertain Taxes, Percent

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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