Segment Information - Net Sales to Significant Customers (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Segment Reporting Information [Line Items]
Entity wide revenue, net sales from major customer	$ 28,450	$ 37,058
Wal-Mart
Segment Reporting Information [Line Items]
Entity wide revenue, net sales from major customer	7,703	9,939
Ulta
Segment Reporting Information [Line Items]
Entity wide revenue, net sales from major customer	7,528	8,947
HK NFS
Segment Reporting Information [Line Items]
Entity wide revenue, net sales from major customer	$ 2,469	$ 6,401