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Segment Information (Details 1) - USD ($)
$ in Thousands
Jun. 30, 2019
Dec. 31, 2018
Revenues from External Customers and Long-Lived Assets [Line Items]    
Long-lived assets $ 11,346 $ 13,242
Sweden [Member]    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Long-lived assets 6,451  
U.S. [Member]    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Long-lived assets 4,789 2,828
Asia [Member]    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Long-lived assets $ 106 106
Sweden [Member]    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Long-lived assets   $ 10,308