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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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- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 720 -SubTopic 35 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6420018&loc=d3e36677-107848 + Details
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