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Accounts Receivable - Trade - Schedule of Accounts Receivable - Trade (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Receivables [Abstract]    
Accounts receivable - trade $ 21,769 $ 4,522
Allowance for doubtful accounts (473) (358)
Allowance for sales returns and volume rebates (426) (499)
Accounts receivable - trade, net of allowances $ 20,869 $ 3,665