Nature of Operations and Summary of Significant Accounting Policies - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
Nature Of Operations and Summary Of Significant Accounting Policies [Line Items]
Inventory Valuation Reserves	$ 786	$ 456
Equity Method Investment, Description of Principal Activities	Where the equity interest was less than 20% and the degree of influence was not significant, the cost method of accounting was employed. Where the equity interest was greater than 20% but not more than 50%, the equity method of accounting was utilized.
Proceeds from Equity Method Investment, Distribution	$ 0	2,323	$ 2,168
Research and Development Expense, Total	1,600	1,500	1,600
Proportionate Net Income		100	1,600
Proceeds from Sale of Property, Plant, and Equipment	4	0	5
Gain (Loss) on Disposition of Property Plant Equipment	$ (7)	$ 0	$ 5
Building [Member] | Maximum [Member]
Nature Of Operations and Summary Of Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life	30 years
Building [Member] | Minimum [Member]
Nature Of Operations and Summary Of Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life	20 years
Machinery and Equipment, Leasehold Improvements [Member] | Maximum [Member]
Nature Of Operations and Summary Of Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life	15 years
Machinery and Equipment, Leasehold Improvements [Member] | Minimum [Member]
Nature Of Operations and Summary Of Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life	5 years
Tools, Dies and Molds [Member] | Maximum [Member]
Nature Of Operations and Summary Of Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life	5 years
Tools, Dies and Molds [Member] | Minimum [Member]
Nature Of Operations and Summary Of Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life	2 years
Noncompete Agreements [Member]
Nature Of Operations and Summary Of Significant Accounting Policies [Line Items]
Finite-Lived Intangible Asset, Useful Life	5 years
Patents [Member] | Maximum [Member]
Nature Of Operations and Summary Of Significant Accounting Policies [Line Items]
Finite-Lived Intangible Asset, Useful Life	15 years
Patents [Member] | Minimum [Member]
Nature Of Operations and Summary Of Significant Accounting Policies [Line Items]
Finite-Lived Intangible Asset, Useful Life	5 years
Customer Lists [Member] | Maximum [Member]
Nature Of Operations and Summary Of Significant Accounting Policies [Line Items]
Finite-Lived Intangible Asset, Useful Life	14 years
Customer Lists [Member] | Minimum [Member]
Nature Of Operations and Summary Of Significant Accounting Policies [Line Items]
Finite-Lived Intangible Asset, Useful Life	3 years
Trademarks [Member]
Nature Of Operations and Summary Of Significant Accounting Policies [Line Items]
Finite-Lived Intangible Asset, Useful Life	20 years
Licensing Agreements [Member]
Nature Of Operations and Summary Of Significant Accounting Policies [Line Items]
Finite-Lived Intangible Asset, Useful Life	17 years
Developed Technology [Member]
Nature Of Operations and Summary Of Significant Accounting Policies [Line Items]
Finite-Lived Intangible Asset, Useful Life	5 years