Trademarks, Licenses and Other Intangible Assets (Details narrative) € in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2018 EUR (€)
Licensing Agreements LineI tems [Line Items]
Amortization expense	$ 7,000	$ 6,000	$ 5,900
Future amortization expense:
2019	5,000
2020	4,600
2021	4,000
2022	3,700
2023	$ 3,700
Amortization period	14 years
Repurchase price	$ 80,000
Impairment of Intangible Assets, Finite-lived		$ 2,123	$ 5,658
Measurement Input, Discount Rate [Member]
Future amortization expense:
Weighted average cost of capital	6.21%	6.22%	6.22%
Euro [Member]
Future amortization expense:
Repurchase price | €				€ 70,000
Maximum [Member]
Future amortization expense:
Amortization period	20 years
Minimum [Member]
Future amortization expense:
Amortization period	3 years
Trademarks [Member]
Future amortization expense:
Amortization period	18 years
Licenses [Member]
Future amortization expense:
Amortization period	14 years
Other Intangible Assets [Member]
Future amortization expense:
Amortization period	2 years