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Organization and Description of Business and Accounting Policies (Details Textual) (USD $) | 12 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Dec. 28, 2012 | Dec. 30, 2011 | Dec. 31, 2010 | Feb. 01, 2012 | Mar. 02, 2010 | Jun. 01, 2009 | Dec. 12, 2007 | Mar. 01, 2007
Foreign currency translation adjustment | $ (722,000) | $ (247,000) | $ (1,154,000) |  |  |  |  |
Gain (loss) on foreign currency transactions | 111,000 | 86,000 | (87,000) |  |  |  |  |
Deposit For Unaccrued Taxes |  |  |  |  | 129,000 |  |  |
Deposit For Unaccrued Taxes Refund |  |  |  | 134,000 |  |  |  |
Goodwill | 1,786,000 | 1,786,000 |  |  |  |  |  |
Advertising Expense | 1,810,000 | 1,306,000 | 1,195,000 |  |  |  |  |
Liabilities, Fair Value Disclosure | $ 27,000 | $ 362,000 |  |  |  |  |  |
Class of Warrant or Right, Outstanding | 70,000 | 70,000 |  |  |  | 700,000 | 700,000 | 70,000
Warrant Issued Under Agreement | 1,400,000 |  |  |  |  |  |  |
Customer Relationships [Member] |  |  |  |  |  |  |  |
Finite-Lived Intangible Asset, Useful Life | 10 years |  |  |  |  |  |  |
Maximum [Member] | Patents and Licences Member [Member] |  |  |  |  |  |  |  |
Finite-Lived Intangible Asset, Useful Life | 20 years |  |  |  |  |  |  |
Maximum [Member] | Developed Technology Rights [Member] |  |  |  |  |  |  |  |
Finite-Lived Intangible Asset, Useful Life | 10 years |  |  |  |  |  |  |
Minimum [Member] | Patents and Licences Member [Member] |  |  |  |  |  |  |  |
Finite-Lived Intangible Asset, Useful Life | 3 years |  |  |  |  |  |  |
Minimum [Member] | Developed Technology Rights [Member] |  |  |  |  |  |  |  |
Finite-Lived Intangible Asset, Useful Life | 3 years |  |  |  |  |  |  |
Accounts Receivable [Member] |  |  |  |  |  |  |  |
Concentration Risk, Percentage | 0.00% |  |  |  |  |  |  |
Sales Revenue, Goods, Net [Member] |  |  |  |  |  |  |  |
Concentration Risk, Percentage | 0.00% | 13.00% |  |  |  |  |  |
Trade Accounts Receivable [Member] |  |  |  |  |  |  |  |
Concentration Risk, Percentage | 10.00% | 19.00% |  |  |  |  |  |

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