INCOME TAXES Operating Loss Carryforward (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Operating Loss Carryforwards [Line Items]
Deferred Tax Assets, Valuation Allowance	$ 103,126,000	$ 133,477,000
Undistributed Earnings of Foreign Subsidiaries	0	0	$ 0
Year 2016 [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	61,379,000
Year 2017 [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	48,606,000
Year 2018 [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	50,975,000
Year 2019 [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	54,706,000
Year 2020 Through 2035 [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	268,451,000
Thereafter [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	22,199,000
SLOVENIA
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	10,700,000
SLOVENIA | Year 2016 [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	0
SLOVENIA | Year 2017 [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	0
SLOVENIA | Year 2018 [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	0
SLOVENIA | Year 2019 [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	0
SLOVENIA | Year 2020 Through 2035 [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	0
SLOVENIA | Thereafter [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	20,136,000
NETHERLANDS | Year 2016 [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	61,379,000
NETHERLANDS | Year 2017 [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	48,606,000
NETHERLANDS | Year 2018 [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	50,975,000
NETHERLANDS | Year 2019 [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	54,706,000
NETHERLANDS | Year 2020 Through 2035 [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	268,451,000
NETHERLANDS | Thereafter [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	0
UNITED KINGDOM | Year 2016 [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	0
UNITED KINGDOM | Year 2017 [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	0
UNITED KINGDOM | Year 2018 [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	0
UNITED KINGDOM | Year 2019 [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	0
UNITED KINGDOM | Year 2020 Through 2035 [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	0
UNITED KINGDOM | Thereafter [Member]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	$ 2,063,000
Minimum [Member] | UNITED KINGDOM
Operating Loss Carryforwards [Line Items]
Income Tax Examination, Year under Examination	2017
Minimum [Member] | SLOVAKIA
Operating Loss Carryforwards [Line Items]
Income Tax Examination, Year under Examination	2011
Minimum [Member] | ROMANIA
Operating Loss Carryforwards [Line Items]
Income Tax Examination, Year under Examination	2014
Minimum [Member] | CZECH REPUBLIC
Operating Loss Carryforwards [Line Items]
Income Tax Examination, Year under Examination	2013
Minimum [Member] | BULGARIA
Operating Loss Carryforwards [Line Items]
Income Tax Examination, Year under Examination	2013
SEC Schedule, 12-09, Valuation Allowance, Deferred Tax Asset [Member]
Operating Loss Carryforwards [Line Items]
Deferred Tax Assets, Valuation Allowance	$ 103,126,000	$ 133,477,000	$ 110,920,000