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Debt - Debt schedule (Details) - USD ($)
$ in Thousands
Jun. 30, 2020
Dec. 31, 2019
Debt    
Debt, Current $ 7,175 $ 4,000
Debt, non current 3,969  
Total debt 11,144 4,000
Credit facility    
Debt    
Debt, Current 4,000 $ 4,000
Total debt 4,000  
PPP loan    
Debt    
Debt, Current 3,175  
Debt, non current $ 3,969