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Warranties (Details) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Product Warranty Liability [Line Items]    
Beginning balance $ 313 $ 656
Warranty provisions 26 100
Warranty claims (53) (69)
Adjustments to preexisting warranties (146) (240)
Currency 2 (3)
Ending balance $ 142 $ 444
Minimum [Member]    
Product Warranty Liability [Line Items]    
Product Warranty Period 2 years  
Maximum [Member]    
Product Warranty Liability [Line Items]    
Product Warranty Period 3 years