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Significant Contracts - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Product Information [Line Items]
Net revenue	$ 7,809	$ 9,527
Accounts receivable	8,647		$ 8,889
Sales [Member] | Customer Concentration Risk [Member] | QVC, Inc. [Member]
Product Information [Line Items]
Net revenue	$ 3,790	$ 4,690
Concentration Risk, Percentage	49.00%	49.00%
Accounts Receivable [Member] | Customer Concentration Risk [Member] | QVC, Inc. [Member]
Product Information [Line Items]
Concentration Risk, Percentage	44.00%		50.00%
Accounts receivable	$ 3,840		$ 4,460

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