Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
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Name:	us-gaap_RestructuringCharges
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Segment Reporting (Details Textuals) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Segment Reporting (Textuals) [Abstract]
Restructuring Charges	$ 1,523	$ 4,413	$ 4,400
Western European Operations [Member]
Segment Reporting (Textuals) [Abstract]
Restructuring Charges	1,000	400
Us Operations segment Member
Segment Reporting (Textuals) [Abstract]
Restructuring Charges	$ 500		$ 3,600
Swiss Operations segment Member
Segment Reporting (Textuals) [Abstract]
Restructuring Charges		$ 400