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Significant Contracts - Additional Information (Details) - Royalty Agreement With QVC [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Significant Contract Revenue
Percentage of total net revenue	53.00%	72.00%
Gross accounts receivable	$ 4,330	$ 5,680
Percentage of total gross accounts receivables	41.00%	52.00%
Royalty [Member]
Significant Contract Revenue
Revenue	$ 22,210	$ 25,630

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Total accounts receivable from sale of goods and services rendered during the reporting period with reference to QVC only.

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