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Organization and Description of Business and Accounting Policies (Details Textual) - USD ($)	12 Months Ended
	Dec. 29, 2017	Dec. 30, 2016	Jan. 01, 2016	Jan. 02, 2015
Organization And Description Of Business And Accounting Policies [Line Items]
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Total	$ 387,000	$ 224,000	$ 52,000
Foreign Currency Transaction Gain (Loss), before Tax	819,000	(147,000)	(949,000)
Goodwill	1,786,000	1,786,000
Advertising Expense	6,102,000	6,160,000	3,917,000
Restricted Cash and Cash Equivalents, Current	$ 121,000	$ 119,000	$ 119,000	$ 119,000
One Customer [Member] | Accounts Receivable [Member]
Organization And Description Of Business And Accounting Policies [Line Items]
Concentration Risk, Percentage	24.00%	22.00%
One Customer [Member] | Sales Revenue, Net [Member]
Organization And Description Of Business And Accounting Policies [Line Items]
Concentration Risk, Percentage	26.00%
Two Customer [Member] | Accounts Receivable [Member]
Organization And Description Of Business And Accounting Policies [Line Items]
Concentration Risk, Percentage		11.00%
Two Customer [Member] | Sales Revenue, Net [Member]
Organization And Description Of Business And Accounting Policies [Line Items]
Concentration Risk, Percentage		19.00%
Customer Three [Member] | Sales Revenue, Net [Member]
Organization And Description Of Business And Accounting Policies [Line Items]
Concentration Risk, Percentage			15.00%
Customer Four [Member] | Sales Revenue, Net [Member]
Organization And Description Of Business And Accounting Policies [Line Items]
Concentration Risk, Percentage			10.00%
Customer Relationships [Member]
Organization And Description Of Business And Accounting Policies [Line Items]
Finite-Lived Intangible Asset, Useful Life	10 years
Developed technology [Member] | Minimum [Member]
Organization And Description Of Business And Accounting Policies [Line Items]
Finite-Lived Intangible Asset, Useful Life	3 years
Developed technology [Member] | Maximum [Member]
Organization And Description Of Business And Accounting Policies [Line Items]
Finite-Lived Intangible Asset, Useful Life	10 years
Patents And Licences [Member] | Minimum [Member]
Organization And Description Of Business And Accounting Policies [Line Items]
Finite-Lived Intangible Asset, Useful Life	3 years
Patents And Licences [Member] | Maximum [Member]
Organization And Description Of Business And Accounting Policies [Line Items]
Finite-Lived Intangible Asset, Useful Life	20 years

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Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line.

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