Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Segment Reporting Information [Line Items]
Net sales	$ 82,502	$ 78,375	$ 217,106	$ 208,789
Earnings (loss) from operations	8,489	8,047	15,499	13,561
Product sales [Member]
Segment Reporting Information [Line Items]
Net sales	81,872	77,843	215,133	206,992
Licensing revenues [Member]
Segment Reporting Information [Line Items]
Net sales	630	532	1,973	1,797
Wholesale [Member]
Segment Reporting Information [Line Items]
Net sales	67,823	63,184	173,356	162,611
Earnings (loss) from operations	9,485	7,611	16,903	12,750
Wholesale [Member] | Product sales [Member]
Segment Reporting Information [Line Items]
Net sales	67,193	62,652	171,383	160,814
Wholesale [Member] | Licensing revenues [Member]
Segment Reporting Information [Line Items]
Net sales	630	532	1,973	1,797
Retail Segment [Member]
Segment Reporting Information [Line Items]
Net sales	5,158	4,942	16,124	14,493
Earnings (loss) from operations	365	428	1,249	856
Retail Segment [Member] | Product sales [Member]
Segment Reporting Information [Line Items]
Net sales	5,158	4,942	16,124	14,493
Retail Segment [Member] | Licensing revenues [Member]
Segment Reporting Information [Line Items]
Net sales	0	0	0	0
Other Segment [Member]
Segment Reporting Information [Line Items]
Net sales	9,521	10,249	27,626	31,685
Earnings (loss) from operations	(1,361)	8	(2,653)	(45)
Other Segment [Member] | Product sales [Member]
Segment Reporting Information [Line Items]
Net sales	9,521	10,249	27,626	31,685
Other Segment [Member] | Licensing revenues [Member]
Segment Reporting Information [Line Items]
Net sales	$ 0	$ 0	$ 0	$ 0