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Goodwill - Rollforward (Details) - USD ($)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Reconciliation of changes in intangible assets and goodwill [abstract]    
Impairment charge $ 0  
Goodwill    
Reconciliation of changes in intangible assets and goodwill [abstract]    
Balance – December 31, 2019 5,600,000 $ 0
Additions 5,563,000  
Effects of foreign exchange 37,000  
Balance – December 31, 2020 $ 5,600,000