Revenue from Contracts with Customers (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 21, 2020	Mar. 23, 2019
Sales Revenues Goods Net [Abstract]
Total Gross Sales	$ 42,148	$ 36,841
Sales Returns And Allowance Goods [Abstract]
Returns	1,079	1,175
Warranties	405	373
Customer Allowances	3,375	3,191
Total Gross-to-Net Sales Adjustments	4,859	4,739
Total Net Sales	37,289	32,102
Mass Merchants [Member]
Sales Revenues Goods Net [Abstract]
Total Gross Sales	13,468	11,430
Specialty Dealers [Member]
Sales Revenues Goods Net [Abstract]
Total Gross Sales	13,067	13,601
E-commerce [Member]
Sales Revenues Goods Net [Abstract]
Total Gross Sales	13,581	9,934
International [Member]
Sales Revenues Goods Net [Abstract]
Total Gross Sales	1,556	1,174
Other [Member]
Sales Revenues Goods Net [Abstract]
Total Gross Sales	$ 476	$ 702