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Significant Contracts (Details) - Royalty Agreement With QVC - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Business Acquisition [Line Items]
Net revenue from QVC	$ 5,160	$ 6,420	$ 17,960	$ 19,900
Percentage of revenue from QVC	47.00%	78.00%	59.00%	78.00%
Receivables from QVC	$ 5,300		$ 5,300		$ 5,680
Percentage of total receivables from QVC	53.00%		53.00%		52.00%

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

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

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No definition available.

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- Definition

The percentage accounts receivable to the total receivables in the year.

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- Definition

The percentage of QVC net revenue to total net revenue for the period.

+ References

No definition available.

+ Details

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- Definition

Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts with reference to QVC only

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No definition available.

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- Details

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