Segment Reporting (Details Textuals) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Segment Reporting (Textuals) [Abstract]
Restructuring Charges	$ 876	$ 860	$ 2,069	$ 2,765
Swiss Operations [Member]
Segment Reporting (Textuals) [Abstract]
Restructuring Charges	100		300	700
Western European Operations [Member]
Segment Reporting (Textuals) [Abstract]
Restructuring Charges	600	300	1,100	1,100
Chinese Operations [Member]
Segment Reporting (Textuals) [Abstract]
Restructuring Charges		100		100
Other Operations [Member]
Segment Reporting (Textuals) [Abstract]
Restructuring Charges	100	200	300	300
US Operations [Member]
Segment Reporting (Textuals) [Abstract]
Restructuring Charges	$ 100	$ 300	$ 400	$ 600