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Warranties (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Product Warranty Liability [Line Items]    
Beginning balance $ 141 $ 313
Warranty provisions 12 7
Warranty claims (7) (23)
Adjustments to preexisting warranties (13) (75)
Currency (3) (2)
Ending balance $ 130 $ 220
Minimum [Member]    
Product Warranty Liability [Line Items]    
Product Warranty Period 2 years  
Maximum [Member]    
Product Warranty Liability [Line Items]    
Product Warranty Period 3 years