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Segment Information (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Segment Reporting Information [Line Items]    
Net sales $ 74,128 $ 69,526
Earnings from operations 5,146 3,567
Product sales [Member]    
Segment Reporting Information [Line Items]    
Net sales 73,421 68,733
Licensing revenues [Member]    
Segment Reporting Information [Line Items]    
Net sales 707 793
Wholesale [Member]    
Segment Reporting Information [Line Items]    
Net sales 59,481 53,788
Earnings from operations 5,206 3,390
Wholesale [Member] | Product sales [Member]    
Segment Reporting Information [Line Items]    
Net sales 58,774 52,995
Wholesale [Member] | Licensing revenues [Member]    
Segment Reporting Information [Line Items]    
Net sales 707 793
Retail Segment [Member]    
Segment Reporting Information [Line Items]    
Net sales 5,571 4,927
Earnings from operations 483 206
Retail Segment [Member] | Product sales [Member]    
Segment Reporting Information [Line Items]    
Net sales 5,571 4,927
Retail Segment [Member] | Licensing revenues [Member]    
Segment Reporting Information [Line Items]    
Net sales 0 0
Other Segment [Member]    
Segment Reporting Information [Line Items]    
Net sales 9,076 10,811
Earnings from operations (543) (29)
Other Segment [Member] | Product sales [Member]    
Segment Reporting Information [Line Items]    
Net sales 9,076 10,811
Other Segment [Member] | Licensing revenues [Member]    
Segment Reporting Information [Line Items]    
Net sales $ 0 $ 0